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Exhibit 99.1

Consolidated financial statements

PlainsCapital Corporation and subsidiaries

Years ended December 31, 2011, 2010 and 2009

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Report of Independent Registered Public Accounting Firm

The Board of Directors and Shareholders
PlainsCapital Corporation

        We have audited the accompanying consolidated balance sheets of PlainsCapital Corporation and subsidiaries (the Company) as of December 31, 2011 and 2010, and the related consolidated statements of income, shareholders' equity, and cash flows for each of the three years in the period ended December 31, 2011. These financial statements are the responsibility of the Company's management. Our responsibility is to express an opinion on these financial statements based on our audits.

        We conducted our audits in accordance with the standards of the Public Company Accounting Oversight Board (United States). Those standards require that we plan and perform the audit to obtain reasonable assurance about whether the financial statements are free of material misstatement. An audit also includes examining, on a test basis, evidence supporting the amounts and disclosures in the financial statements, assessing the accounting principles used and significant estimates made by management, and evaluating the overall financial statement presentation. We believe that our audits provide a reasonable basis for our opinion.

        In our opinion, the financial statements referred to above present fairly, in all material respects, the consolidated financial position of PlainsCapital Corporation and subsidiaries at December 31, 2011 and 2010, and the consolidated results of their operations and their cash flows for each of the three years in the period ended December 31, 2011, in conformity with U.S. generally accepted accounting principles.

        We also have examined, in accordance with attestation standards established by the American Institute of Certified Public Accountants, management's assertion that the Company maintained effective internal control over financial reporting as of December 31, 2011, based on criteria established in Internal Control—Integrated Framework issued by the Committee of Sponsoring Organizations of the Treadway Commission and our report dated March 16, 2012 expressed an unqualified opinion thereon.

/s/ Ernst & Young LLP

Dallas, Texas
March 16, 2012

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PlainsCapital Corporation and Subsidiaries

Consolidated Balance Sheets

December 31,

   

See accompanying notes.

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PlainsCapital Corporation and Subsidiaries

Consolidated Statements of Income

For the Years Ended December 31,

(In thousands, except per share amounts)

   

See accompanying notes.

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PlainsCapital Corporation and Subsidiaries

Consolidated Statements of Comprehensive Income

For the Years Ended December 31,

(In thousands)

   

See accompanying notes.

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PlainsCapital Corporation and Subsidiaries

Consolidated Statements of Shareholders' Equity

See accompanying notes.

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PlainsCapital Corporation and Subsidiaries

Consolidated Statements of Cash Flows

For the Years Ended December 31,

(In thousands)

   

See accompanying notes.

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PlainsCapital Corporation and Subsidiaries

Notes to Consolidated Financial Statements

December 31, 2011

1. Summary of Significant Accounting and Reporting Policies

Nature of Operations

        PlainsCapital Corporation ("PlainsCapital") is a financial holding company registered under the Bank Holding Company Act of 1956, as amended by the Graham-Leach-Bliley Act of 1999, headquartered in Dallas, Texas, that provides, through its subsidiaries, an array of financial products and services. In addition to traditional banking services, PlainsCapital provides residential mortgage lending, investment banking, public finance advisory, wealth and investment management, treasury management, capital equipment leasing, fixed income sales, asset management and correspondent clearing services.

Basis of Presentation

        PlainsCapital owns 100% of the outstanding stock of PlainsCapital Bank and 100% of the membership interest in PlainsCapital Equity, LLC. PlainsCapital owns a 69.75% membership interest in Hester Capital Management, LLC ("Hester Capital"). PlainsCapital Bank owns 100% of the outstanding stock of PrimeLending, a PlainsCapital Company ("PrimeLending"), PNB Aero Services, Inc. and PCB-ARC, Inc. PlainsCapital Bank has a 100% membership interest in First Southwest Holdings, LLC ("First Southwest") and PlainsCapital Securities, LLC, as well as a 51% voting interest in PlainsCapital Insurance Services, LLC.

        PrimeLending owns a 100% membership interest in PrimeLending Ventures Management, LLC, the controlling and sole managing member of PrimeLending Ventures, LLC ("Ventures"). Through a series limited liability company structure, Ventures establishes separate operating divisions with select business partners, such as home builders, real estate brokers and financial institutions, to originate residential mortgage loans.

        On June 30, 2011, PlainsCapital Bank dissolved Plains Financial Corporation, which had no significant operations or net assets at the time of its dissolution.

        After the close of business on December 31, 2008, First Southwest Holdings, Inc., a diversified, private investment banking corporation headquartered in Dallas, Texas merged into FSWH Acquisition LLC, a wholly owned subsidiary of PlainsCapital Bank. Following the merger, FSWH Acquisition LLC changed its name to "First Southwest Holdings, LLC." The principal subsidiaries of First Southwest are First Southwest Company ("FSC"), a broker-dealer registered with the Securities and Exchange Commission (the "SEC") and the Financial Industry Regulatory Authority ("FINRA"), and First Southwest Asset Management, Inc., a registered investment advisor under the Investment Advisors Act of 1940.

        The acquisition cost of First Southwest Holdings, Inc. was approximately $62.2 million. In addition, PlainsCapital placed approximately 1.7 million shares of PlainsCapital common stock, valued at approximately $19.2 million as of December 31, 2008, into escrow. The percentage of shares to be released from escrow and distributed to former First Southwest shareholders will be determined based upon, among other factors, the valuation of certain auction rate bonds held by First Southwest prior to the merger (or repurchased from investors following the closing of the merger) as of the last day of December 2012 or, if applicable, the aggregate sales price of such auction rate bonds prior to such date. Any shares issued out of the escrow will be accounted for as additional acquisition cost.

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PlainsCapital Corporation and Subsidiaries

Notes to Consolidated Financial Statements (Continued)

December 31, 2011

1. Summary of Significant Accounting and Reporting Policies (Continued)

        PlainsCapital used a third-party valuation specialist to assist in the determination of the fair value of assets acquired, including intangibles, and liabilities assumed in the acquisition. The purchase price allocation resulted in net assets acquired in excess of consideration paid of approximately $12.8 million. That amount has been recorded in other liabilities until the contingent consideration issue described previously is settled. Upon resolution of the contingent consideration issue, the acquisition cost of First Southwest may increase, resulting in a smaller excess of net assets acquired over consideration paid, or in certain circumstances, an excess of consideration paid over net assets acquired that would result in recording goodwill from the transaction. Any remaining excess of net assets acquired over consideration paid will be allocated pro rata to reduce the carrying value of certain purchased assets.

        The consolidated financial statements include the accounts of the above-named entities. All significant intercompany transactions and balances have been eliminated. Noncontrolling interests have been recorded for minority ownership in entities that are not wholly owned and are presented in compliance with the provisions of Noncontrolling Interest in Subsidiary Subsections of the Financial Accounting Standards Board ("FASB") Accounting Standards Codification ("ASC"), as discussed below.

        PlainsCapital also owns 100% of the outstanding common stock of PCC Statutory Trusts I, II, III and IV (the "Trusts"), which are not included in the consolidated financial statements under the requirements of the Variable Interest Entities Subsections of the ASC, because the primary beneficiaries of the Trusts are not within the consolidated group.

        The preparation of financial statements in conformity with accounting principles generally accepted in the United States requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities, the disclosure of contingent assets and liabilities at the date of the financial statements, and the reported amounts of revenues and expenses during the reporting period. Actual results could differ from those estimates. Estimates regarding the allowance for loan losses are particularly subject to change.

Securities Purchased Under Agreements to Resell

        Securities purchased under agreements to resell (reverse repurchase agreements or reverse repos) are treated as collateralized financings and are carried at the amounts at which the securities will subsequently be resold as specified in the agreements. PlainsCapital is in possession of collateral with a fair value equal to or in excess of the contract amounts.

Loans Held for Sale

        Loans held for sale consist primarily of single-family residential mortgages funded through PrimeLending. These loans are generally on the consolidated balance sheet for no more than 30 days. Substantially all mortgage loans originated by PrimeLending are sold in the secondary market, servicing released, and, until they are sold, are carried at fair value under the provisions of the Fair Value Option Subsections of the ASC ("Fair Value Option"). Changes in the fair value of the loans held for sale are recognized in earnings and fees and costs associated with origination are recognized as incurred. The specific identification method is used to determine realized gains and losses on sales of loans, which are reported as net gains (losses) in noninterest income. Loans sold are subject to certain indemnification provisions with investors, including the repurchase of loans sold and repayment of

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PlainsCapital Corporation and Subsidiaries

Notes to Consolidated Financial Statements (Continued)

December 31, 2011

1. Summary of Significant Accounting and Reporting Policies (Continued)

certain sales proceeds to investors under certain conditions. PlainsCapital Bank guarantees PrimeLending's performance with respect to the indemnification provisions included in purchase agreements with certain third parties. As of December 31, 2011 and 2010, PrimeLending had an accrued liability of $8.1 million and $9.9 million, respectively, as its best estimate of its obligations under these indemnification provisions. The accrued liability is based upon, among other things, historical loan loss rates and loan repurchases, current trends in loan originations and the geographic location of underlying collateral.

Securities

        Management classifies securities at the time of purchase and reassesses such designation at each balance sheet date. Transfers between categories from these reassessments are rare. Securities held for resale to facilitate principal transactions with customers are classified as trading, and are carried at fair value, with changes in fair value reflected in the statement of income. PlainsCapital reports interest income on trading securities as interest income on securities and other changes in fair value as other noninterest income.

        Securities to be held for indefinite periods of time but not intended to be held to maturity or on a long-term basis are classified as available for sale. Securities included in this category are those that management intends to use as part of its asset/liability management strategy and that may be sold in response to changes in interest rates, resultant prepayment risk, and other factors related to interest rate and resultant prepayment risk changes. Securities available for sale are carried at fair value. Unrealized holding gains and losses on securities available for sale, net of taxes, are reported in other comprehensive income until realized. Premiums and discounts are recognized in interest income using the interest method and consider any optionality that may be embedded in the security.

        Securities that management has the positive intent and ability to hold until maturity are classified as held to maturity. These securities are carried at cost, adjusted for amortization of premiums and accretion of discounts, which are recognized as adjustments to interest income using the interest method over the period to maturity.

        Purchases and sales (and related gain or loss) of securities are recorded on the trade date, based on specific identification. Declines in the fair value of held-to-maturity and available-for-sale securities below their cost that are deemed to be other than temporary are reflected in earnings as realized losses to the extent the other-than-temporary impairment ("OTTI") is related to credit losses. The amount of the OTTI related to other factors is recognized in other comprehensive income. In estimating OTTI, management considers, among other things, (i) the length of time and the extent to which the fair value has been less than cost, (ii) the financial condition and near-term prospects of the issuer, (iii) the historic and implied volatility of the security, (iv) failure of the issuer to make scheduled interest payments and (v) changes to the rating of the security by a rating agency.

Loans

        Loans that management has the intent and ability to hold for the foreseeable future or until maturity or payoff are stated at the amount of unpaid principal reduced by unearned income, net unamortized deferred fees and an allowance for loan losses. Unearned income on installment loans and

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PlainsCapital Corporation and Subsidiaries

Notes to Consolidated Financial Statements (Continued)

December 31, 2011

1. Summary of Significant Accounting and Reporting Policies (Continued)

interest on other loans is recognized using the interest method. Net fees received for providing loan commitments and letters of credit that result in loans are deferred and amortized to interest income over the life of the related loan, beginning with the initial borrowing. Net fees on commitments and letters of credit that are not expected to be funded are amortized to noninterest income over the commitment period. Income on direct financing leases is recognized on a basis that achieves a constant periodic rate of return on the outstanding investment.

        Impaired loans include non-accrual loans, troubled debt restructurings and partially charged-off loans. The accrual of interest on impaired loans is discontinued when, in management's opinion, there is a clear indication that the borrower's cash flow may not be sufficient to meet principal and interest payments as they become due according to the terms of the loan agreement, which is generally when a loan is 90 days past due unless the loan is both well secured and in the process of collection. When a loan is placed on non-accrual status, all previously accrued and unpaid interest is charged against income. If the ultimate collectibility of principal, wholly or partially, is in doubt, any payment received on a loan on which the accrual of interest has been suspended is applied to reduce principal to the extent necessary to eliminate such doubt. Once the collection of the remaining recorded loan balance is fully expected, interest income is recognized on a cash basis.

        PlainsCapital Bank originates loans to customers primarily in Dallas, Fort Worth, Arlington, Lubbock, Austin and San Antonio. Although PlainsCapital Bank has diversified loan and leasing portfolios and, generally, holds collateral against amounts advanced to customers, its debtors' ability to honor their contracts is substantially dependent upon the general economic conditions of the region and of the industries in which its debtors operate, which consist primarily of energy, agribusiness, wholesale/retail trade, construction and real estate. PrimeLending originates loans to customers in its offices, which are located throughout the United States. Mortgage loans originated by PrimeLending are sold in the secondary market, servicing released. FSC makes loans to customers through margin transactions. FSC controls risk by requiring customers to maintain margin collateral in compliance with various regulatory and internal guidelines, which may vary based upon market conditions. Securities owned by customers and held as collateral for margin loans are not included in the consolidated financial statements.

Allowance for Loan Losses

        The allowance for loan losses is a reserve established through a provision for loan losses charged to expense, which represents management's best estimate of probable losses inherent in the existing portfolio of loans. The allowance, in the judgment of management, is necessary to reserve for estimated loan losses inherent in the loan portfolio at the balance sheet date. The allowance for loan losses includes allowance allocations calculated in accordance with the Receivables and Contingencies Topics of the ASC. The level of the allowance reflects management's continuing evaluation of industry concentrations, specific credit risks, loan loss experience, current loan portfolio quality, present economic, political and regulatory conditions, and unidentified losses inherent in the current loan portfolio. Portions of the allowance may be allocated for specific credits; however, the entire allowance is available for any credit that, in management's judgment, should be charged off. While management utilizes its best judgment and information available, the ultimate adequacy of the allowance is dependent upon a variety of factors beyond PlainsCapital's control, including the performance of

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PlainsCapital Corporation and Subsidiaries

Notes to Consolidated Financial Statements (Continued)

December 31, 2011

1. Summary of Significant Accounting and Reporting Policies (Continued)

PlainsCapital's loan portfolio, the economy, changes in interest rates and the view of the regulatory authorities toward loan classifications.

        PlainsCapital's allowance for loan losses consists of three elements: (i) specific valuation allowances established for probable losses on impaired loans; (ii) general historical valuation allowances calculated based on historical loan loss experience for homogeneous loans with similar characteristics and trends; and (iii) valuation allowances to adjust general reserves based on recent economic conditions and other qualitative risk factors both internal and external to PlainsCapital.

Assets Segregated for Regulatory Purposes

        Under certain conditions, FSC may be required to segregate cash and securities in a special reserve account for the benefit of customers under Rule 15c3-3 promulgated under the Securities and Exchange Act of 1934, as amended (the "Exchange Act"). Assets segregated under the provisions of the Exchange Act are not available for general corporate purposes.

Broker-Dealer and Clearing Organization Transactions

        Amounts recorded in broker-dealer and clearing organization receivables and payables include securities lending activities, as well as amounts related to securities transactions for either FSC customers or for the account of FSC. Securities-borrowed and securities-loaned transactions are generally reported as collateralized financings except where letters of credit or other securities are used as collateral. Securities-borrowed transactions require FSC to deposit cash, letters of credit, or other collateral with the lender. With respect to securities loaned, FSC receives collateral in the form of cash or other assets in an amount generally in excess of the market value of securities loaned. FSC monitors the market value of securities borrowed and loaned on a daily basis, with additional collateral obtained or refunded as necessary. Interest income and interest expense associated with collateralized financings is included in the accompanying statement of income.

Fee Award Receivable

        In 2005, First Southwest participated in a monetization of future cash flows from several tobacco companies owed to a law firm under a settlement agreement ("Fee Award"). First Southwest estimated the amount and timing of the undiscounted expected cash flows from the receivable. The excess of the receivable's cash flows expected to be collected over the amount paid is to be accreted into interest income over the remaining life of the receivable (accretable yield). Over the life of the Fee Award, First Southwest will continue to estimate cash flows expected to be collected and evaluate the receivable for possible impairment.

Premises and Equipment

        Premises and equipment are stated at cost less accumulated depreciation and amortization computed principally on the straight-line method over the estimated useful lives of the assets, which range between 3 and 40 years. Gains or losses on disposals of premises and equipment are included in results of operations.

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PlainsCapital Corporation and Subsidiaries

Notes to Consolidated Financial Statements (Continued)

December 31, 2011

1. Summary of Significant Accounting and Reporting Policies (Continued)

Other Real Estate Owned

        Real estate acquired through foreclosure is included in other real estate owned and is carried at management's estimate of fair value less costs to sell. Any excess of recorded investment over fair value less cost to sell is charged against the allowance for loan losses when property is initially transferred to other real estate. Subsequent to the initial transfer to other real estate, valuation adjustments are charged against earnings. Valuation adjustments, revenue and expenses from operations of the properties and resulting gains or losses on sale are included in repossession and foreclosure expense.

Goodwill

        Goodwill, which represents the excess of cost over the fair value of the net assets of an acquired business, is allocated to reporting units and tested for impairment annually, as of October 1, or whenever events or changes in circumstances indicate that the carrying amount should be assessed. Prior to testing goodwill for impairment, PlainsCapital has the option to assess on a qualitative basis whether it is more likely than not that the fair value of a reporting unit is less than its carrying amount. If PlainsCapital determines, based on its assessment of qualitative factors that it is more likely than not that fair value of a reporting unit is less than its carrying amount, PlainsCapital will proceed to test goodwill for impairment. Impairment, if any, for goodwill is recognized as a permanent charge to noninterest expense. There were no such impairment charges in 2011, 2010 or 2009.

Intangibles and Other Long-Lived Assets

        Intangible assets are acquired assets that lack physical substance but can be distinguished from goodwill because of contractual or other legal rights or because the asset is capable of being sold or exchanged either on its own or in combination with a related contract, asset or liability. PlainsCapital's intangible assets primarily relate to customer relationships. Intangible assets with definite useful lives are generally amortized on the straight-line method over their estimated lives, although certain intangibles, including customer relationships, are amortized on an accelerated basis. Amortization of intangible assets is recorded in other noninterest expense. Intangible assets with indefinite useful lives are not amortized until their lives are determined to be definite. Intangible assets, premises and equipment, and other long-lived assets are tested for impairment whenever events or changes in circumstances indicate the carrying amount of the assets may not be recoverable from future undiscounted cash flows. If impaired, the assets are recorded at fair value. There were no such impairment charges in 2011, 2010 or 2009.

Derivative Financial Instruments

        PlainsCapital's hedging policies permit the use of various derivative financial instruments to manage interest rate risk or to hedge specified assets and liabilities. In addition, PrimeLending executes interest rate lock commitments ("IRLCs") with its customers that allow those customers to make mortgage loans at agreed upon rates. IRLCs meet the definition of a derivative under the provisions of the Derivatives and Hedging Topic of the ASC.

        Derivatives are recorded at fair value on PlainsCapital's consolidated balance sheet. To qualify for hedge accounting, derivatives must be highly effective at reducing the risk associated with the exposure

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PlainsCapital Corporation and Subsidiaries

Notes to Consolidated Financial Statements (Continued)

December 31, 2011

1. Summary of Significant Accounting and Reporting Policies (Continued)

being hedged and must be designated as a hedge at the inception of the derivative contract. If derivative instruments are designated as hedges of fair values, the change in the fair value of both the derivative instrument and the hedged item are included in current earnings. Changes in the fair value of derivatives designated as hedges of cash flows are recorded in other comprehensive income. Actual cash receipts and/or payments and related accruals on derivatives related to hedges are recorded as adjustments to the line item where the hedged item's effect on earnings is recorded.

        During the life of the hedge, PlainsCapital formally assesses whether derivatives designated as hedging instruments continue to be highly effective in offsetting changes in the fair value or cash flows of hedged items. If PlainsCapital determines that a hedge has ceased to be highly effective, PlainsCapital will discontinue hedge accounting prospectively. At such time, previous adjustments to the carrying value of the hedged item would be reversed into earnings, amounts recorded in other comprehensive income would be reclassified into earnings, the derivative instrument would be recorded at fair value and future changes in fair value would be reported in earnings.

Loss Contingencies

        Loss contingencies, including claims and legal actions arising in the ordinary course of business, are recorded as liabilities when the likelihood of loss is probable and an amount or range of loss can be reasonably estimated.

Share-Based Compensation

        As of December 31, 2011, PlainsCapital and its subsidiaries had two open incentive plans that allow grants of various share-based awards. The plans are described in Note 15. Compensation cost recognized for all share-based payments is based on the grant-date fair value estimated by application of the provisions of the Compensation Topic of the ASC. Certain unvested restricted stock grants are subject to ratable vesting over a period of years. Costs associated with such grants are recognized on a straight line basis over the appropriate vesting period.

Advertising

        Advertising costs are expensed as incurred. Advertising expense totaled approximately $3.1 million, $2.8 million and $1.4 million in 2011, 2010 and 2009, respectively.

Income Taxes

        The provision for income tax includes taxes currently payable and deferred taxes arising from the difference in basis of assets and liabilities for financial statement and tax purposes. Deferred tax assets and liabilities are reflected at currently enacted income tax rates applicable to the period in which the deferred tax assets or liabilities are expected to be realized or settled. Current and deferred tax estimates are adjusted to the corporate federal and state income tax returns when the returns are filed in the third quarter of the subsequent year. As changes in tax laws or rates are enacted, deferred tax assets and liabilities are adjusted through the income tax provision. PlainsCapital files a consolidated federal income tax return. Interest and penalties incurred related to tax matters are charged to other interest expense or other noninterest expense, respectively.

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PlainsCapital Corporation and Subsidiaries

Notes to Consolidated Financial Statements (Continued)

December 31, 2011

1. Summary of Significant Accounting and Reporting Policies (Continued)

        Benefits from uncertain tax positions are recognized in the financial statements only when it is more likely than not that the tax position will be sustained upon examination by the appropriate taxing authority having full knowledge of all relevant information. A tax position that meets the more-likely-than-not recognition threshold is measured at the largest amount of cumulative benefit that is greater than fifty percent likely of being realized upon ultimate settlement. Tax positions that previously failed to meet the more-likely-than-not recognition threshold are recognized in the reporting period in which that threshold is met. Previously recognized tax positions that no longer meet the more-likely-than-not recognition threshold are derecognized in the reporting period in which that threshold is no longer met. The Company has not recorded any significant liabilities for uncertain tax positions.

Earnings per Common Share

        PlainsCapital uses the two-class method prescribed by the Earnings Per Share Topic of the ASC to compute earnings per common share. The ASC provides that unvested share-based payment awards that contain nonforfeitable rights to dividends or dividend equivalents (whether paid or unpaid) are participating securities and shall be included in the computation of earnings per common share pursuant to the two-class method. Accordingly PlainsCapital includes both shares of unvested restricted stock outstanding and shares of PlainsCapital stock held in escrow pending the resolution of contingencies with respect to the First Southwest acquisition in participating securities for the purposes of computing earnings per common share.

Cash Flow Reporting

        For the purpose of presentation in the consolidated statement of cash flows, cash and cash equivalents are defined as the amount included in the consolidated balance sheets caption "Cash and due from banks" and the portion of the amount in the caption "Federal funds sold and securities purchased under agreements to resell" that represents federal funds sold. Cash equivalents have original maturities of three months or less.

Comprehensive Income (Loss)

        PlainsCapital's comprehensive income (loss) consists of its net income and unrealized holding gains (losses) on its securities, including securities for which the credit portion of an OTTI has been recognized in earnings, investments held in trust for the Supplemental Executive Pension Plan and derivative instruments designated as cash flow hedges.

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PlainsCapital Corporation and Subsidiaries

Notes to Consolidated Financial Statements (Continued)

December 31, 2011

1. Summary of Significant Accounting and Reporting Policies (Continued)

        The components of accumulated other comprehensive income (loss) ("AOCI") as of December 31, 2011, 2010 and 2009 are shown in the following table (in thousands, net of taxes):

Other

        Certain items in the 2010 and 2009 financial statements have been reclassified to conform to the 2011 presentation. PlainsCapital has evaluated subsequent events for potential recognition and/or disclosure through March 16, 2012.

2. Securities

        The amortized cost and fair value of securities, excluding trading securities, as of December 31, 2011 and 2010 are summarized as follows (in thousands):

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PlainsCapital Corporation and Subsidiaries

Notes to Consolidated Financial Statements (Continued)

December 31, 2011

2. Securities (Continued)

 

        During the first quarter of 2011, subordinated auction rate bonds with a net carrying amount of $28.6 million were transferred from held to maturity to available for sale in response to a downgrade in their credit rating from investment grade to below investment grade. The net carrying amount of the transferred securities included an unrealized loss of $5.1 million that was included, net of tax, in accumulated other comprehensive loss as of March 31, 2011, reducing shareholders' equity.

        During the third quarter of 2011, these transferred securities, as well as the other auction rate bonds held by PlainsCapital Bank, were placed on Negative Watch by one of the rating agencies. After further analysis, PlainsCapital Bank determined that all of the auction rate bonds whose fair value was less than amortized cost had incurred other-than-temporary impairment. In order to determine the amount of the OTTI, PlainsCapital Bank evaluated the historical and projected performance of the underlying student loan collateral, the extent of the government guarantee, expenses associated with the trust that issued the securities, the expected cash flows from the transferred securities and other factors. As a result of this evaluation, PlainsCapital Bank determined that it incurred OTTI of approximately $7.5 million on auction rate bonds for the year ended December 31, 2011. The credit-related portion of the OTTI, calculated as the difference between the securities' amortized cost basis and the present value of the securities' expected future cash flows, was approximately $5.3 million and was recorded in operating results during 2011. The remaining $2.2 million of the OTTI has been recognized in other comprehensive income.

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PlainsCapital Corporation and Subsidiaries

Notes to Consolidated Financial Statements (Continued)

December 31, 2011

2. Securities (Continued)

        Information regarding securities held by PlainsCapital Bank, including those for which the credit-related portion of an OTTI has been recorded in earnings, that were in an unrealized loss position, as of December 31, 2011 and December 31, 2010 is shown in the following tables (dollars in thousands):

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PlainsCapital Corporation and Subsidiaries

Notes to Consolidated Financial Statements (Continued)

December 31, 2011

2. Securities (Continued)

        As noted above, PlainsCapital Bank has incurred OTTI on securities classified both as held to maturity and available for sale. Subject to the discussion of OTTI above, management has the intent and ability to hold the securities classified as held to maturity until they mature, at which time PlainsCapital Bank expects to receive full value for the securities. As of December 31, 2011, management does not intend to sell any of the securities classified as available for sale in the previous table and believes that it is more likely than not that PlainsCapital Bank will not have to sell any such securities before a recovery of cost. As of December 31, 2011 and 2010, the securities included in the previous table represented 22.77% and 47.59%, respectively, of the fair value of PlainsCapital Bank's securities portfolio. As of December 31, 2011 and 2010, total impairment represented 1.96% and

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PlainsCapital Corporation and Subsidiaries

Notes to Consolidated Financial Statements (Continued)

December 31, 2011

2. Securities (Continued)

3.01%, respectively, of the fair value of the underlying securities, and 0.45% and 1.43%, respectively, of the fair value of PlainsCapital Bank's securities portfolio. Management believes the other impairments detailed in the table are temporary and relate primarily to changes in interest rates and liquidity as of December 31, 2011.

        The following table provides details regarding the amounts of credit-related OTTI recognized in earnings (in thousands):

        The amortized cost and fair value of securities, excluding trading securities, as of December 31, 2011, are shown by contractual maturity below (in thousands):

        For the years ended December 31, 2011, 2010, and 2009, PlainsCapital Bank received proceeds from the sale of available for sale securities of $223.5 million, $191.8 million, and $45.9 million, respectively, and realized gross gains of $1.5 million, $2.0 million, and $0.3 million, respectively. PlainsCapital Bank determines the cost of securities sold by specific identification.

        FSC realized net gains from its trading securities portfolio of $4.0 million, $1.7 million and $1.0 million for the years ended December 31, 2011, 2010 and 2011, respectively. The net gains are recorded as a component of other noninterest income.

        Securities with a carrying amount of approximately $685.9 million and $624.4 million as of December 31, 2011 and 2010, respectively (with a fair value of approximately $701.8 million and $623.6 million, respectively), were pledged to secure public and trust deposits, federal funds purchased and securities sold under agreements to repurchase, and for other purposes as required or permitted by law. In addition, PlainsCapital Bank had secured a letter of credit from the Federal Home Loan Bank

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PlainsCapital Corporation and Subsidiaries

Notes to Consolidated Financial Statements (Continued)

December 31, 2011

2. Securities (Continued)

("FHLB") in the amount of $60.0 million as of December 31, 2010 in lieu of pledging securities to secure certain public deposits.

        Mortgage-backed securities and collateralized mortgage obligations consist principally of Government National Mortgage Association ("GNMA"), Federal National Mortgage Association ("FNMA") and Federal Home Loan Mortgage Corporation ("FHLMC") pass-through and participation certificates. GNMA securities are guaranteed by the full faith and credit of the United States, while FNMA and FHLMC securities are fully guaranteed by those respective United States government-sponsored agencies, and conditionally guaranteed by the full faith and credit of the United States.

3. Loans and Allowance for Loan Losses

        Loans summarized by category as of December 31, 2011 and 2010, are as follows (in thousands):

        PlainsCapital has lending policies in place with the goal of establishing an asset portfolio that will provide a return on shareholders' equity sufficient to maintain capital to assets ratios that meet or exceed established regulatory guidelines. Loans are underwritten with careful consideration of the borrower's financial condition, the specific purpose of the loan, the primary sources of repayment and any collateral pledged to secure the loan.

        Underwriting procedures address financial components based on the size or complexity of the credit. The financial components include but are not limited to current and projected global cash flows, shock analysis and/or stress testing, and trends in appropriate balance sheet and income statement ratios. Collateral analysis includes a complete description of the collateral, as well as determining values, monitoring requirements, loan to value ratios, concentration risk, appraisal requirements and other information relevant to the collateral being pledged. Guarantor analysis includes liquidity and global cash flow analysis based on the significance the guarantors are expected to serve as secondary repayment sources. PlainsCapital's underwriting standards are governed by adherence to its loan policy. The loan policy provides for specific guidelines by portfolio segment, including commercial and industrial, real estate, construction and land development, and consumer loans. Within each individual portfolio segment, permissible and impermissible loan types are explicitly outlined. Within the loan types, minimum requirements for the underwriting factors listed above are provided.

21

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PlainsCapital Corporation and Subsidiaries

Notes to Consolidated Financial Statements (Continued)

December 31, 2011

3. Loans and Allowance for Loan Losses (Continued)

        PlainsCapital maintains an independent loan review department that reviews credit risk in response to both external and internal factors that potentially impact the performance of either individual loans or the overall loan portfolio. The loan review process reviews the creditworthiness of borrowers and determines compliance with the loan policy. The loan review process complements and reinforces the risk identification and assessment decisions made by lenders and credit personnel. Results of these reviews are presented to management and PlainsCapital Bank's Board of Directors.

        Impaired loans exhibit a clear indication that the borrower's cash flow may not be sufficient to meet principal and interest payments, which is generally when a loan is 90 days past due unless the asset is both well secured and in the process of collection. Impaired loans include non-accrual loans, troubled debt restructurings ("TDRs") and partially charged-off loans. Impaired loans as of December 31, 2011 and 2010 are summarized by class in the following tables (in thousands):

22

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PlainsCapital Corporation and Subsidiaries

Notes to Consolidated Financial Statements (Continued)

December 31, 2011

3. Loans and Allowance for Loan Losses (Continued)

        Interest income recorded on accruing impaired loans was approximately $ 0.5 million and $1.9 million for the years ended December 31, 2011 and 2010, respectively. Interest income recorded on non-accrual loans in 2011, 2010 and 2009 was nominal. As of December 31, 2011, PlainsCapital had no unadvanced commitments to borrowers whose loans have been restructured in troubled debt restructurings.

23

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PlainsCapital Corporation and Subsidiaries

Notes to Consolidated Financial Statements (Continued)

December 31, 2011

3. Loans and Allowance for Loan Losses (Continued)

        Non-accrual loans as of December 31, 2011 and 2010 are summarized by class in the following table (in thousands):

        The average aggregate balance of non-accrual loans in 2009 was approximately $55.4 million.

        PlainsCapital classifies loan modifications as TDRs when it concludes that it has both granted a concession to a debtor and that the debtor is experiencing financial difficulties. Loan modifications are typically structured to create affordable payments for the debtor and can be achieved in a variety of ways. PlainsCapital modifies loans by reducing interest rates and/or lengthening loan amortization schedules. PlainsCapital also reconfigures a single loan into two or more loans ("A/B Note"). The typical A/B Note restructure results in a "bad" loan which is charged off and a "good" loan or loans the terms of which comply with PlainsCapital Bank's customary underwriting policies. The debt charged off on the "bad" loan is not forgiven to the debtor.

24

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PlainsCapital Corporation and Subsidiaries

Notes to Consolidated Financial Statements (Continued)

December 31, 2011

3. Loans and Allowance for Loan Losses (Continued)

        For the year ended December 31, 2011, information regarding TDRs granted is shown in the following table (in thousands):

        The reduction in interest income over the remaining contractual life of TDRs granted during the year ended December 31, 2011 was not significant. None of the TDR's granted during the twelve months preceding December 31, 2011 had a payment that was at least 30 days past due in the year ended December 31, 2011.

25

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PlainsCapital Corporation and Subsidiaries

Notes to Consolidated Financial Statements (Continued)

December 31, 2011

3. Loans and Allowance for Loan Losses (Continued)

        An analysis of the aging of PlainsCapital's loan portfolio as of December 31, 2011 and 2010 is shown in the following table (in thousands):

26

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PlainsCapital Corporation and Subsidiaries

Notes to Consolidated Financial Statements (Continued)

December 31, 2011

3. Loans and Allowance for Loan Losses (Continued)

        Management tracks credit quality trends on a quarterly basis related to: (i) past due levels, (ii) non-performing asset levels, (iii) classified loan levels, (iv) net charge-offs, and (v) general economic conditions in the state and local markets.

        PlainsCapital utilizes a risk grading matrix to assign a risk grade to each of the loans in its portfolio. A risk rating is assigned based on an assessment of the borrower's management, collateral position, financial capacity, and economic factors. The general characteristics of the various risk grades are described below.

        Pass—"Pass" loans present a range of acceptable risks to PlainsCapital Bank. Loans that would be considered virtually risk-free are rated Pass—low risk. Loans that exhibit sound standards based on the grading factors above and present a reasonable risk to PlainsCapital Bank are rated Pass—normal risk. Loans that exhibit a minor weakness in one or more of the grading criteria but still present an acceptable risk to PlainsCapital Bank are rated Pass—high risk.

        Special Mention—A "Special Mention" asset has potential weaknesses that deserve management's close attention. If left uncorrected, these potential weaknesses may result in a deterioration of the repayment prospects for the asset and weaken PlainsCapital Bank's credit position at some future date.

27

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PlainsCapital Corporation and Subsidiaries

Notes to Consolidated Financial Statements (Continued)

December 31, 2011

3. Loans and Allowance for Loan Losses (Continued)

Special Mention assets are not adversely classified and do not expose PlainsCapital Bank to sufficient risk to require adverse classification.

        Substandard—"Substandard" loans are inadequately protected by the current sound worth and paying capacity of the obligor or the collateral pledged, if any. Loans so classified must have a well-defined weakness or weaknesses that jeopardize the liquidation of the debt. They are characterized by the distinct possibility that PlainsCapital Bank will sustain some loss if the deficiencies are not corrected. Many substandard loans are considered impaired.

        The following tables present the internal risk grades of loans, as previously described, in the portfolio as of December 31, 2011 and 2010 by class (in thousands):

28

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PlainsCapital Corporation and Subsidiaries

Notes to Consolidated Financial Statements (Continued)

December 31, 2011

3. Loans and Allowance for Loan Losses (Continued)

 

        Net investment in lease financing as of December 31, 2011 and 2010 is shown in the following table (in thousands):

        PlainsCapital expects to receive future minimum lease payments as follows (in thousands).

        The allowance for loan losses is a reserve established through a provision for loan losses charged to expense, which represents management's best estimate of probable losses inherent in the existing portfolio of loans. Management has responsibility for determining the level of the allowance for loan

29

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PlainsCapital Corporation and Subsidiaries

Notes to Consolidated Financial Statements (Continued)

December 31, 2011

3. Loans and Allowance for Loan Losses (Continued)

losses, subject to review by the Audit Committee of PlainsCapital's Board of Directors and the Directors' Loan Review Committee of PlainsCapital Bank's Board of Directors.

        It is management's responsibility at the end of each quarter, or more frequently as deemed necessary, to analyze the level of the allowance for loan losses to ensure that it is appropriate for the estimated credit losses in the portfolio consistent with the Interagency Policy Statement on the Allowance for Loan and Lease Losses and the Receivables and Contingencies Topics of the ASC. Estimated credit losses are the probable current amount of loans that PlainsCapital will be unable to collect given facts and circumstances as of the evaluation date. When management determines that a loan or portion thereof, is uncollectible, the loan, or portion thereof, is charged off against the allowance for loan losses. Any subsequent recovery of charged-off loans is added back to the allowance for loan losses.

        PlainsCapital has developed a methodology that seeks to determine an allowance within the scope of the Receivables and Contingencies Topics of the ASC. Each of the loans that has been determined to be impaired is within the scope of the Receivables Topic and is individually evaluated for impairment using one of three impairment measurement methods as of the evaluation date: (1) the present value of expected future discounted cash flows on the loan, (2) the loan's observable market price, or (3) the fair value of the collateral if the loan is collateral dependent. Specific reserves are provided in PlainsCapital's estimate of the allowance based on the measurement of impairment under these three methods, except for collateral dependent loans, which require the fair value method. All non-impaired loans are within the scope of the Contingencies Topic. Estimates of loss for the Contingencies Topic are calculated based on historical loss experience by loan portfolio segment adjusted for changes in trends, conditions, and other relevant factors that affect repayment of loans as of the evaluation date. While historical loss experience provides a reasonable starting point for the analysis, historical losses, or recent trends in losses, are not the sole basis upon which to determine the appropriate level for the allowance for loan losses. Management considers recent qualitative or environmental factors that are likely to cause estimated credit losses associated with the existing portfolio to differ from historical loss experience, including but not limited to: changes in lending policies and procedures; changes in underwriting standards; changes in economic and business conditions and developments that affect the collectibility of the portfolio; the condition of various market segments; changes in the nature and volume of the portfolio and in the terms of loans; changes in lending management and staff; changes in the volume and severity of past due loans, the volume of non-accrual loans, and the volume and severity of adversely classified or graded loans; changes in the loan review system; changes in the value of underlying collateral for collateral-dependent loans; and any concentrations of credit and changes in the level of such concentrations.

        PlainsCapital designs its loan review program to identify and monitor problem loans by maintaining a credit grading process, ensuring that timely and appropriate changes are made to the loans with assigned risk grades and coordinating the delivery of the information necessary to assess the appropriateness of the allowance for loan losses. Loans are evaluated for impairment when: (i) payments on the loan are delayed, typically by 90 days or more (unless the loan is both well secured and in the process of collection), (ii) the loan becomes classified, (iii) the loan is being reviewed in the normal course of the loan review scope, or (iv) the loan is identified by the servicing officer as a problem. PlainsCapital reviews on an individual basis all loan relationships over $0.5 million that exhibit

30

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PlainsCapital Corporation and Subsidiaries

Notes to Consolidated Financial Statements (Continued)

December 31, 2011

3. Loans and Allowance for Loan Losses (Continued)

probable or observed credit weaknesses, the top 25 loan relationships by dollar amount in each market PlainsCapital serves, and additional relationships necessary to achieve adequate coverage of PlainsCapital's various lending markets.

        Homogeneous loans, such as consumer installment loans, residential mortgage loans and home equity loans, are not individually reviewed and are generally risk graded at the same levels. The risk grade and reserves are established for each homogeneous pool of loans based on the expected net charge-offs from current trends in delinquencies, losses or historical experience and general economic conditions. As of December 31, 2011, PlainsCapital had no material delinquencies in these types of loans.

        The allowance is subject to regulatory examinations and determinations as to appropriateness, which may take into account such factors as the methodology used to calculate the allowance and the size of the allowance.

        Changes in the allowance for loan losses, distributed by portfolio segment, were as follows (in thousands):

        Changes in the allowance for loan losses for the years ended December 31, 2010 and 2009 were as follows (in thousands):

31

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PlainsCapital Corporation and Subsidiaries

Notes to Consolidated Financial Statements (Continued)

December 31, 2011

3. Loans and Allowance for Loan Losses (Continued)

        As of December 31, 2011 and 2010, the loan portfolio was distributed by portfolio segment and impairment methodology as shown below (in thousands):

 

        As of December 31, 2011 and 2010, the allowance for loan losses was distributed by portfolio segment and impairment methodology as shown below (in thousands):

 

32

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PlainsCapital Corporation and Subsidiaries

Notes to Consolidated Financial Statements (Continued)

December 31, 2011

3. Loans and Allowance for Loan Losses (Continued)

        Net (charge-offs)/recoveries by portfolio segment for the years ended December 31, 2011 and 2010 are shown in the following table (in thousands):

4. Premises and Equipment

        The cost and accumulated depreciation and amortization of premises and equipment as of December 31, 2011 and 2010, respectively, are summarized as follows (in thousands):

        The amounts shown above include assets recorded under capital leases of $10.8 million and $10.7 million, net of accumulated amortization of $3.3 million and $2.6 million as of December 31, 2011 and 2010, respectively.

        Occupancy expense was reduced by rental income of approximately $1.3 million, $0.5 million and $0.5 million in 2011, 2010 and 2009, respectively. Depreciation and amortization expense on premises and equipment, which includes amortization of capital leases, amounted to $16.6 million, $15.2 million and $11.9 million in 2011, 2010 and 2009, respectively.

33

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PlainsCapital Corporation and Subsidiaries

Notes to Consolidated Financial Statements (Continued)

December 31, 2011

5. Goodwill and Other Intangible Assets

        The carrying amount of goodwill was $35.9 million as of December 31, 2011 and 2010.

        Other intangible assets as of December 31, 2011, were as follows (in thousands):

        Other intangible assets as of December 31, 2010, were as follows (in thousands):

        Other intangible assets are amortized over their estimated lives, which range from 3 to 15 years. Certain First Southwest intangibles, including customer relationships, are being amortized on an accelerated basis over a 15-year period. Amortization expense related to intangible assets for the years ended December 31, 2011, 2010 and 2009 was approximately $2.1 million, $2.2 million and $1.5 million, respectively. The estimated aggregate future amortization expense for intangible assets remaining as of December 31, 2011, is as follows (in thousands):

34

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PlainsCapital Corporation and Subsidiaries

Notes to Consolidated Financial Statements (Continued)

December 31, 2011

6. Deposits

        Deposits as of December 31, 2011 and 2010 are summarized as follows (in thousands):

        As of December 31, 2011, the scheduled maturities of interest-bearing time deposits are as follows (in thousands):

7. Short-term Borrowings

        Short-term borrowings as of December 31, 2011 and 2010 were as follows (in thousands):

        Federal funds purchased and securities sold under agreements to repurchase generally mature daily, on demand, or on some other short-term basis. PlainsCapital Bank and FSC execute transactions to sell securities under agreements to repurchase with both customers and broker-dealers. Securities involved in these transactions are held by PlainsCapital Bank, FSC or the dealer. Information concerning federal funds purchased and securities sold under agreements to repurchase for the years

35

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PlainsCapital Corporation and Subsidiaries

Notes to Consolidated Financial Statements (Continued)

December 31, 2011

7. Short-term Borrowings (Continued)

ended December 31, 2011, 2010 and 2009 is shown in the following table (dollar amounts in thousands):

        The estimated fair value of securities underlying repurchase agreements above includes approximately $46.8 million of securities owned by FSC customers and pledged to FSC as collateral for margin loans as of December 31, 2011. FSC is permitted to sell or re-pledge customer securities held as collateral for margin loans under the terms of the margin loan agreements between FSC and its customers.

        FHLB notes mature over terms not exceeding 365 days and are secured by FHLB Dallas stock, nonspecified real estate loans and certain specific commercial real estate loans. As of December 31, 2011, PlainsCapital Bank had available collateral of $1.1 billion, substantially all of which was blanket collateral. Other information regarding FHLB notes for the years ended December 31, 2011, 2010 and 2009 is shown in the following table (dollar amounts in thousands):

        FSC uses short-term bank loans periodically to finance securities owned, customers' margin accounts and underwriting activities. Interest on the borrowings varies with the federal funds rate. The weighted average interest rate on the borrowings as of December 31, 2011 and 2010 were 1.33% and 1.50%, respectively.

36

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PlainsCapital Corporation and Subsidiaries

Notes to Consolidated Financial Statements (Continued)

December 31, 2011

8. Notes Payable

        Notes payable as of December 31, 2011 and 2010, consisted of the following (in thousands):

        The agreements underlying the JPMorgan Chase Bank, N.A. debt include certain restrictive covenants, including limitations on the ability to incur additional debt, limitations on the disposition of assets and requirements to maintain various financial ratios, including a non-performing asset ratio, at acceptable levels.

        In July 2011, PlainsCapital made the final payment of $1.9 million on its term note with JPMorgan Chase Bank, N.A. that was scheduled to mature on July 31, 2011.

        The previous table reflects July 2011 amendments ("July 2011 Amendments") to loan agreements between PlainsCapital and JPMorgan Chase Bank, N.A. governing PlainsCapital's existing line of credit and term notes. The July 2011 Amendments converted PlainsCapital's $17.7 million revolving line of credit to a term note, extended the maturity of PlainsCapital's remaining line of credit and term notes expiring July 31, 2011 to July 31, 2012 and, where applicable, decreased the acceptable non-performing asset ratio for PlainsCapital Bank from 4.50% to 4.00%, effective beginning September 30, 2011. As of December 31, 2011, PlainsCapital Bank's non-performing asset ratio was in compliance with the non-performing asset ratio covenant.

37

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PlainsCapital Corporation and Subsidiaries

Notes to Consolidated Financial Statements (Continued)

December 31, 2011

8. Notes Payable (Continued)

        The revolving credit facility maturing in July 2012 and the term notes due July 2012 and October 2015 bear interest at LIBOR plus 2.75%. The weighted-average rate on those borrowings was 3.18% as of December 31, 2011. These debt instruments are collateralized by the outstanding stock of PlainsCapital Bank.

        Advances under the subordinated note maturing in October 2015 bear interest at LIBOR plus 5.00%. The subordinated note is not collateralized. The rate on each of the outstanding advances under the subordinated note as of December 31, 2011 was 5.37%.

        In 2005, First Southwest participated in a monetization of future cash flows from the Fee Award totaling $95.3 million from several tobacco companies owed to a law firm under a settlement agreement. In connection with the transaction, a special purpose entity that is consolidated with First Southwest issued $30.3 million of nonrecourse notes to finance the purchase of the Fee Award, to establish a reserve account and to fund issuance costs. Cash flows from the settlement are the sole source of payment for the notes. The notes carry an interest rate of 8.58% that can increase to 10.08% under certain credit conditions.

        Scheduled maturities for notes payable outstanding as of December 31, 2011, are as follows (in thousands):

9. Junior Subordinated Debentures and Trust Preferred Securities

        PlainsCapital has four statutory Trusts, three of which were formed under the laws of the state of Connecticut and the fourth, PCC Statutory Trust IV, which was formed under the laws of the state of Delaware. The Trusts were created for the sole purpose of issuing and selling preferred securities and common securities, using the resulting proceeds to acquire junior subordinated debentures issued by PlainsCapital (the "Debentures"). Accordingly, the Debentures are the sole assets of the Trusts, and payments under the Debentures are the sole revenue of the Trusts. All of the common securities are owned by PlainsCapital; however, PlainsCapital is not the primary beneficiary of the Trusts. Accordingly, the Trusts are not included in PlainsCapital's consolidated financial statements.

        The Trusts have issued $65,000,000 of floating rate preferred securities and $2,012,000 of common securities and have invested the proceeds from the securities in floating rate Debentures of

38

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PlainsCapital Corporation and Subsidiaries

Notes to Consolidated Financial Statements (Continued)

December 31, 2011

9. Junior Subordinated Debentures and Trust Preferred Securities (Continued)

PlainsCapital. Information regarding the PlainsCapital Debentures is shown in the following table (amounts in thousands):

        The stated term of the Debentures is 30 years with interest payable quarterly. The rate on the Debentures, which resets quarterly, is 3-month LIBOR plus an average spread of 3.22%. The total average interest rate as of December 31, 2011 was 3.75%. The term, rate and other features of the preferred securities are the same as the Debentures. PlainsCapital's obligations under the Debentures and related documents, taken together, constitute a full and unconditional guarantee of the Trust's obligations under the preferred securities.

10. Income Taxes

        The income tax provision for 2011, 2010 and 2009 includes the following components (in thousands):

39

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PlainsCapital Corporation and Subsidiaries

Notes to Consolidated Financial Statements (Continued)

December 31, 2011

10. Income Taxes (Continued)

        The differences between income taxes computed using the statutory federal income tax rate and that shown in the consolidated statement of income for 2011, 2010 and 2009 are summarized as follows (in thousands):

        The 2010 cumulative deferred tax benefit shown above resulted from reconciling and adjusting PlainsCapital's deferred tax accounts to cumulative book-tax basis differences in various assets and liabilities. The tax benefit related primarily to PlainsCapital's lease financing business. The effects of the total benefit primarily related to years prior to 2008 and were not material to the financial position, results of operations or cash flows of PlainsCapital in any previously reported period.

        PlainsCapital files income tax returns in the U.S. federal jurisdiction and several U.S. state jurisdictions. PlainsCapital is no longer subject to U.S. federal income tax examinations by tax authorities for years before 2008. PlainsCapital is currently under examination for the 2009 tax year by the U.S. federal income tax authorities. PlainsCapital does not anticipate any material adjustments to result from this examination. PlainsCapital does not anticipate any significant liabilities for uncertain tax positions to arise in the next twelve months.

40

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PlainsCapital Corporation and Subsidiaries

Notes to Consolidated Financial Statements (Continued)

December 31, 2011

10. Income Taxes (Continued)

        The components of the net deferred tax asset included in other assets as of December 31, 2011 and 2010 are summarized as follows (in thousands):

11. Employee Benefits

        PlainsCapital and its subsidiaries have benefit plans that provide for elective deferrals by employees under Section 401(k) of the Code. Employee contributions are determined by the level of employee participation and related salary levels per Internal Revenue Service regulations. PlainsCapital and its subsidiaries match a portion of employee contributions to the plan based on the level of normal operating earnings and the amount of eligible employees' contributions and salaries. The amount charged to operating expense for this matching contribution totaled $4.3 million in 2011, $3.7 million in 2010 and $2.7 million in 2009.

        In September 2004, PlainsCapital established the PlainsCapital Corporation Employee Stock Ownership Plan (the "ESOP"). Employees of PlainsCapital are eligible to participate in the ESOP, and employees of PlainsCapital's subsidiaries are also eligible to participate if their respective subsidiary has

41

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PlainsCapital Corporation and Subsidiaries

Notes to Consolidated Financial Statements (Continued)

December 31, 2011

11. Employee Benefits (Continued)

elected to participate. Contributions by participating employers to the ESOP are discretionary. The ESOP may borrow money to purchase shares of PlainsCapital. As contributions are made to the ESOP, and any debt is repaid, shares are released for allocation to participant accounts on a pro rata basis to the repayment of associated debt.

        As of December 31, 2011, the ESOP owned 1,613,019 shares of PlainsCapital stock, including 190,253 shares that are unearned. The estimated fair value of the unearned shares was $2.6 million ($14.00 per share, based on the most recent ESOP valuation as of December 31, 2011). As of December 31, 2010, the ESOP owned 1,632,635 shares of PlainsCapital stock, including 232,381 shares that were unearned. The estimated fair value of the unearned shares as of December 31, 2010 was $2.8 million ($11.87 per share, based on the ESOP valuation as of December 31, 2010).

        Interest expense on ESOP debt was $0.1 million for each of the years ended December 31, 2011, 2010 and 2009, respectively. PlainsCapital and its participating subsidiaries contributed $1.6 million, $1.6 million and $1.5 million to the ESOP for the years ended December 31, 2011, 2010 and 2009, respectively. PlainsCapital charges these contributions to noninterest expense.

        PlainsCapital Bank has a Supplemental Executive Pension Plan to provide additional benefits for certain key officers, which was adopted in 2001. Pursuant to the plan, PlainsCapital Bank is obligated to pay each participant or his beneficiaries a lump sum at such participant's retirement, death or disability. The estimated cost of the plan is being accrued over the period of active employment of the participants. As of December 31, 2011 and 2010, $11.4 million and $9.0 million, respectively, had been accrued as a liability for benefits payable under the plan. The amount charged to operations in 2011, 2010 and 2009 was $2.6 million, $2.1 million and $0.7 million, respectively. Benefit accruals are funded annually in a Rabbi Trust in the first quarter following year-end. The assets of the Rabbi Trust consist primarily of marketable equity securities. As of December 31, 2011 and 2010, the assets of the Rabbi Trust are included in other assets at a fair value of $7.3 million and $6.7 million, respectively.

        PlainsCapital Bank purchased $15.0 million of flexible premium universal life insurance in 2001 to help finance the annual expense incurred in providing various employee benefits. As of December 31, 2011 and 2010, the carrying value of the policies included in other assets was $22.1 million and $21.4 million, respectively. For the years ended December 31, 2011, 2010 and 2009, PlainsCapital Bank recorded income of $0.7 million, $1.0 million, and $0.7 million related to the policies that was reported in other noninterest income.

12. Related Party Transactions

        In the ordinary course of business, PlainsCapital Bank has granted loans to certain directors, executive officers and their affiliates (collectively referred to as related parties) totaling $28.6 million as of December 31, 2011 and $8.7 million as of December 31, 2010. These loans were made on substantially the same terms, including interest rates and collateral, as those prevailing at the time for comparable transactions with other unaffiliated persons and do not involve more than normal risk of collectibility. For such loans during 2011, total principal additions were $27.1 million and total principal payments were $7.2 million.

        As of December 31, 2011 and 2010, PlainsCapital Bank held deposits of related parties of approximately $290.9 million and $98.7 million, respectively.

42

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PlainsCapital Corporation and Subsidiaries

Notes to Consolidated Financial Statements (Continued)

December 31, 2011

12. Related Party Transactions (Continued)

        A related party is the lessor in an operating lease with PlainsCapital Bank. PlainsCapital Bank's minimum payment under the lease is $0.5 million annually through 2028, for an aggregate remaining obligation of $8.5 million.

        PlainsCapital Bank purchases loans from a company for which a related party serves as a director, president and chief executive officer. Loan purchases were approximately $0.7 million for the year ended December 31, 2011. The loans were purchased with recourse to the company in the ordinary course of business and the related party had no direct financial interest in the transactions.

        PlainsCapital Equity, LLC is a limited partner in certain limited partnerships that have received loans from PlainsCapital Bank. PlainsCapital Bank made those loans in the normal course of business, using underwriting standards and offering terms that are substantially the same as those used or offered to non-affiliated borrowers. As of December 31, 2011 and 2010, PlainsCapital Bank had outstanding loans of approximately $3.5 million and $6.3 million to limited partnerships in which PlainsCapital Equity, LLC had a limited partnership interest. The investment of PlainsCapital Equity, LLC in these limited partnerships was $1.0 million and $1.2 million as of December 31, 2011 and 2010, respectively.

13. Commitments and Contingencies

        PlainsCapital Bank acts as agent on behalf of certain correspondent banks in the purchase and sale of federal funds that aggregated $33.0 million and $0.5 million as of December 31, 2011 and 2010, respectively.

Legal Matters

        In November 2006, FSC received subpoenas from the SEC and the United States Department of Justice (the "DOJ") in connection with an investigation of possible antitrust and securities law violations, including bid-rigging, in the procurement of guaranteed investment contracts and other investment products for the reinvestment of bond proceeds by municipalities. The investigation is industry-wide and includes approximately 30 or more firms, including some of the largest U.S. investment firms.

        As a result of these SEC and DOJ investigations into industry-wide practices, FSC was initially named as a co-defendant in cases filed in several different federal courts by various state and local governmental entities suing on behalf of themselves and a purported class of similarly situated governmental entities and a similar set of lawsuits filed by various California local governmental entities suing on behalf of themselves and a purported class of similarly situated governmental entities. All claims asserted against FSC in these purported class actions were subsequently dismissed. However, the plaintiffs in these purported class actions have filed amended complaints against other entities, and FSC is identified in these complaints not as a defendant, but as an alleged co-conspirator with the named defendants.

        Additionally, as a result of these SEC and DOJ investigations into industry-wide practices, FSC has been named as a defendant in 20 individual lawsuits. These lawsuits have been brought by several California public entities and two New York non-profit corporations that do not seek to certify a class. The Judicial Panel on Multidistrict Litigation has transferred these cases to the United States District Court, Southern District of New York. The California plaintiffs allege violations of Section 1 of the

43

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PlainsCapital Corporation and Subsidiaries

Notes to Consolidated Financial Statements (Continued)

December 31, 2011

13. Commitments and Contingencies (Continued)

Sherman Act and the California Cartwright Act. The New York plaintiffs allege violations of Section 1 of the Sherman Act and the New York Donnelly Act. The allegations against FSC are very limited in scope. FSC has filed answers in each of the twenty lawsuits denying the allegations and asserting several affirmative defenses. FSC intends to defend itself vigorously in these individual actions. The relief sought is unspecified monetary damages.

        PlainsCapital and its subsidiaries are defendants in various other legal matters arising in the normal course of business. Management believes that the ultimate liability, if any, arising from these matters, and the matters discussed above will not materially affect the consolidated financial statements.

Other Contingencies

        PlainsCapital and its subsidiaries have entered into employment contracts with certain executive officers. The contracts provide for minimum annual salaries and additional compensation in the form of bonuses based on performance. The contracts originated at various dates, and contain self-renewing terms of one to three years, subject to the option of PlainsCapital or the executive not to renew. The minimum aggregate commitment for future salaries, excluding bonuses, under these contracts as of December 31, 2011, is approximately $13.1 million. These employment contracts also provide severance pay benefits if there is a change in control of PlainsCapital. PlainsCapital and subsidiaries have separate severance agreements with certain other senior officers that provide severance pay benefits if there is a change in control. The severance agreements with the other senior officers contain self-renewing terms of two years subject to the option of PlainsCapital or the officer not to renew. As of December 31, 2011, the aggregate contingent liability for severance pay benefits in the event of a change in control is approximately $45.7 million.

        PlainsCapital and its subsidiaries lease space, primarily for branch facilities and automated teller machines, under noncancelable operating leases with remaining terms, including renewal options, of 1 to 16 years and under capital leases with remaining terms of 12 to 16 years. Future minimum payments by year and in the aggregate under these leases are as follows as of December 31, 2011 (in thousands):

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PlainsCapital Corporation and Subsidiaries

Notes to Consolidated Financial Statements (Continued)

December 31, 2011

13. Commitments and Contingencies (Continued)

        Rental expense under the operating leases was approximately $23.2 million, $21.5 million and $18.4 million in 2011, 2010 and 2009, respectively.

14. Financial Instruments with Off-Balance Sheet Risk

        PlainsCapital Bank is party to financial instruments with off-balance sheet risk in the normal course of business to meet the financing needs of their customers. These financial instruments include commitments to extend credit and standby letters of credit that involve varying degrees of credit and interest rate risk in excess of the amount recognized in the consolidated financial statements. Such financial instruments are recorded in the financial statements when they are funded or related fees are incurred or received. The contract amounts of those instruments reflect the extent of involvement (and therefore the exposure to credit loss) PlainsCapital Bank has in particular classes of financial instruments.

        Commitments to extend credit are agreements to lend to a customer provided that the terms established in the contract are met. Commitments generally have fixed expiration dates and may require payment of fees. Because some commitments are expected to expire without being drawn upon, the total commitment amounts do not necessarily represent future cash requirements. Standby letters of credit are conditional commitments issued to guarantee the performance of a customer to a third party. These guarantees are primarily issued to support public and private borrowing arrangements. The credit risk involved in issuing letters of credit is essentially the same as that involved in extending loan commitments to customers.

        PlainsCapital Bank had in the aggregate outstanding unused commitments to extend credit of $909.7 million as of December 31, 2011. PlainsCapital Bank had outstanding standby letters of credit of $46.7 million as of December 31, 2011.

        PlainsCapital Bank uses the same credit policies in making commitments and standby letters of credit as it does for on-balance sheet instruments. The amount of collateral obtained, if deemed necessary, upon extension of credit is based on management's credit evaluation of the borrower. Collateral held varies but may include real estate, accounts receivable, marketable securities, interest-bearing deposit accounts, inventory, and property, plant and equipment.

        In the normal course of business, FSC executes, settles, and finances various securities transactions that may expose FSC to off-balance sheet risk in the event that a customer or counterparty does not fulfill its contractual obligations. Examples of such transactions include the sale of securities not yet purchased by customers or for the account of FSC, clearing agreements between FSC and various clearinghouses and broker-dealers, secured financing arrangements that involve pledged securities, and when-issued underwriting and purchase commitments.

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PlainsCapital Corporation and Subsidiaries

Notes to Consolidated Financial Statements (Continued)

December 31, 2011

15. Stock-Based Compensation

        In August 2009, the shareholders approved the PlainsCapital Corporation 2009 Long-Term Incentive Plan (the "2009 LTIP") to be effective upon the redemption of all of PlainsCapital's Fixed Rate Cumulative Perpetual Preferred Stock, Series A ("Series A Preferred Stock") and Fixed Rate Cumulative Perpetual Preferred Stock, Series B ("Series B Preferred Stock") issued in December 2008 to the U.S. Department of the Treasury (the "U.S. Treasury") pursuant to the Capital Purchase Program, a part of the Troubled Asset Relief Program ("TARP"). As discussed in Note 17, PlainsCapital redeemed all shares of Series A Preferred Stock and Series B Preferred Stock on September 27, 2011. As a result, the 2009 LTIP became effective. The 2009 LTIP allows for the granting of incentive stock options, stock appreciation rights, restricted stock, restricted stock units, performance awards, dividend equivalent rights and other awards to employees of PlainsCapital, its subsidiaries and outside directors of PlainsCapital. The 2009 LTIP is expected to provide flexibility to PlainsCapital's compensation methods in order to adapt the compensation of key employees and outside directors to a changing business environment. In the aggregate, 4.0 million shares of common stock may be delivered pursuant to awards granted under the 2009 LTIP. The 2009 LTIP replaced the stock option plans established in 2001, 2003, 2005 and 2007. No future awards may be granted under those prior plans.

        In addition, the PlainsCapital Corporation 2010 Long-Term Incentive Plan (the "2010 Plan") allows for the granting of nonqualified stock options, stock appreciation rights, restricted stock, restricted stock units, performance awards, dividend equivalent rights and other awards to employees of PlainsCapital, its subsidiaries and outside directors of PlainsCapital. In the aggregate, 1.0 million shares of common stock may be delivered pursuant to awards granted under the 2010 Plan. The 2010 Plan will terminate on March 18, 2012 as to all future awards.

        Compensation cost related to the plans was approximately $2.5 million, $1.7 million and $1.1 million for the years ended December 31, 2011, 2010 and 2009, respectively. The income tax benefit related to share-based compensation was approximately $0.9 million, $0.6 million and $0.4 million in 2011, 2010 and 2009, respectively.

        As of December 31, 2011, unrecognized cost related to unvested restricted stock and restricted stock units was $4.7 million and $5.3 million, respectively. PlainsCapital expects to recognize that cost over a weighted-average period of approximately 23 months. The vesting of the unvested restricted stock and restricted stock units will automatically accelerate in full under certain conditions. Upon a change in control of PlainsCapital, the entire unrecognized cost related to both unvested restricted stock and restricted stock units would be recognized in noninterest expense immediately. On the date upon which PlainsCapital's common stock is listed and traded on an exchange registered under the Exchange Act, the entire unrecognized cost related to unvested restricted stock would be recognized in noninterest expense immediately.

        PlainsCapital approved the grant of 340,811 restricted stock units to certain employees effective April 1, 2012. The estimated grant date fair value of the restricted stock units is $4.8 million. The grants vest in 5 years and are subject to the accelerated vesting conditions discussed previously.

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PlainsCapital Corporation and Subsidiaries

Notes to Consolidated Financial Statements (Continued)

December 31, 2011

15. Stock-Based Compensation (Continued)

        Information regarding shares of unvested restricted stock for the years ended December 31, 2011 and 2010 is as follows:

        Information regarding restricted stock units for the years ended December 31, 2011 and 2010 is as follows:

        The acquisition described in Note 1 included a provision whereby First Southwest Holdings, Inc. stock options that were outstanding and unexercised at the acquisition date would be converted into PlainsCapital stock options on the same terms and conditions, including vesting conditions, as the First Southwest Holdings, Inc. options they replaced. Accordingly, PlainsCapital granted 285,366 options with a weighted-average exercise price of $4.53 to replace outstanding and unexercised First Southwest Holdings, Inc. stock options.

        As of December 31, 2011, a total of 4,000,000 shares were available for grant under the 2009 LTIP and 248,687 shares were available for awards under the 2010 Plan. PlainsCapital typically issues new shares upon exercise of option grants.

        The exercise price of all common stock subject to options granted under these plans will not be less than 100% of the fair market value of the common stock on the date of grant, unless an option is granted to a person who owns more than 10% of the common stock, in which case the exercise price will not be less than 110% of the fair market value of the common stock subject to the options granted. Options granted expire in no more than ten years, unless an option is granted to a person who owns more than 10% of the common stock, in which case the options granted expire in no more than five years, or upon the termination of employment unless (i) the optionee retires, after which time he will have three months from the date of his retirement to exercise his options, or (ii) the optionee dies, after which time his legal representatives have the six months after his death to exercise his options.

47

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PlainsCapital Corporation and Subsidiaries

Notes to Consolidated Financial Statements (Continued)

December 31, 2011

15. Stock-Based Compensation (Continued)

        PlainsCapital did not grant options in 2011 or 2010. The weighted-average grant date fair value of options granted during 2009 was $2.44. PlainsCapital used a Black-Scholes option pricing model to estimate the fair value of each option award on the date of grant. Risk-free rates are derived from yields on U.S. Treasury strips (zero-coupon bonds) on the date options are granted. The expected term of options granted is based on an analysis of historical exercise data and represents the expected period of time that options are to be outstanding. Expected volatility is based on historical volatility of PlainsCapital's stock. The estimates for expected term and expected volatility are reviewed annually. Weighted-average values used to estimate the fair value of options granted are shown in the following table:

        Information regarding stock options for the years ended December 31, 2011 and 2010 is as follows:

        The total intrinsic value of options exercised during the years ended December 31, 2011, 2010 and 2009 was $0.2 million, $1.0 million and $0.3 million, respectively. As of December 31, 2011, the intrinsic value of options outstanding was $2.6 million and the intrinsic value of exercisable shares was $2.6 million. The total fair value of share awards vested was $1.6 million in 2011, $0.2 million in 2010 and $0.7 million in 2009.

        Details of PlainsCapital's stock options outstanding and exercisable as of December 31, 2011, are as follows:

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PlainsCapital Corporation and Subsidiaries

Notes to Consolidated Financial Statements (Continued)

December 31, 2011

16. Regulatory Matters

        PlainsCapital Bank and PlainsCapital are subject to various regulatory capital requirements administered by the federal banking agencies. Failure to meet minimum capital requirements can initiate certain mandatory—and possibly additional discretionary—actions by regulators that, if undertaken, could have a direct, material effect on the consolidated financial statements. The regulations require PlainsCapital to meet specific capital adequacy guidelines that involve quantitative measures of assets, liabilities and certain off-balance sheet items as calculated under regulatory accounting practices. The capital classifications are also subject to qualitative judgments by the regulators about components, risk weightings and other factors.

        Quantitative measures established by regulation to ensure capital adequacy require the companies to maintain minimum amounts and ratios (set forth in the following table) of Tier 1 capital (as defined in the regulations) to total average assets (as defined), and minimum ratios of Tier 1 and total capital (as defined) to risk-weighted assets (as defined). A comparison of PlainsCapital Bank's and PlainsCapital's actual capital amounts and ratios to the minimum requirements is as follows (dollar amounts in thousands):

 

49

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PlainsCapital Corporation and Subsidiaries

Notes to Consolidated Financial Statements (Continued)

December 31, 2011

16. Regulatory Matters (Continued)

        A reconciliation of book capital to Tier 1 and total capital (as defined) is as follows (in thousands):

 

        To be considered adequately capitalized (as defined) under the regulatory framework for prompt corrective action, PlainsCapital Bank must maintain minimum Tier 1 capital to total average assets and Tier 1 capital to risk-weighted assets ratios of 4%, and a total capital to risk-weighted assets ratio of 8%. Based on the actual capital amounts and ratios shown in the previous table, PlainsCapital Bank's ratios place it in the well capitalized (as defined) capital category under the regulatory framework for

50

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PlainsCapital Corporation and Subsidiaries

Notes to Consolidated Financial Statements (Continued)

December 31, 2011

16. Regulatory Matters (Continued)

prompt corrective action. The minimum required capital amounts and ratios for the well capitalized category are summarized as follows (dollar amounts in thousands):

 

        Pursuant to the net capital requirements of the Exchange Act, FSC has elected to determine its net capital requirements using the alternative method. Accordingly, FSC is required to maintain minimum net capital, as defined in Rule 15c3-1, equal to the greater of $250,000 or 2% of aggregate debit balances, as defined in Rule 15c3-3. As of December 31, 2011, FSC had net capital of $57.1 million; the minimum net capital requirement was $4.8 million; net capital maintained by FSC was 24% of aggregate debits; and net capital in excess of the minimum requirement was $52.3 million.

        As a mortgage originator, PrimeLending is subject to minimum net worth requirements established by the United States Department of Housing and Urban Development ("HUD"). PrimeLending determines its compliance with the minimum net worth requirements on an annual basis. As of December 31, 2011, PrimeLending was required to have net worth of at least $1.0 million. As of December 31, 2011, PrimeLending's net worth exceeded the required amount.

17. Shareholders' Equity

        PlainsCapital Bank is subject to certain restrictions on the amount of dividends it may declare without prior regulatory approval. As of December 31, 2011, approximately $67.0 million of retained earnings was available for dividend declaration without prior regulatory approval.

        On September 27, 2011, PlainsCapital sold approximately $114.1 million of PlainsCapital's Non-Cumulative Perpetual Preferred Stock, Series C (the "Series C Preferred Stock") to the Secretary of the Treasury pursuant to the SBLF. The Series C Preferred Stock has an aggregate liquidation preference of approximately $114.1 million and qualifies as Tier 1 Capital for regulatory purposes.

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PlainsCapital Corporation and Subsidiaries

Notes to Consolidated Financial Statements (Continued)

December 31, 2011

17. Shareholders' Equity (Continued)

        The terms of the Series C Preferred Stock provide for the payment of non-cumulative dividends on a quarterly basis beginning January 1, 2012. The dividend rate, as a percentage of the liquidation amount, fluctuates while the Series C Preferred Stock is outstanding based upon changes in the level of "qualified small business lending" ("QSBL") by PlainsCapital Bank from its average level of QSBL at each of the four quarter ends leading up to June 30, 2010 (the "Baseline") as follows:

        As a result of PlainsCapital's increased small business lending, PlainsCapital's rate on the Series C Preferred Stock has dropped to 3.829% as of January 1, 2012, and will drop to 2.427% as of April 1, 2012.

        In addition to the applicable dividend rates described above, beginning on January 1, 2014 and on all dividend payment dates thereafter ending on April 1, 2016, if PlainsCapital fails to increase its level of QSBL compared to the Baseline, PlainsCapital will be required to pay a quarterly lending incentive fee of 0.5% of the liquidation value.

        As long as shares of Series C Preferred Stock remain outstanding, PlainsCapital may not pay dividends to its common shareholders (nor may PlainsCapital repurchase or redeem any shares of its common stock) during any quarter in which PlainsCapital fails to declare and pay dividends on the Series C Preferred Stock and for the next three quarters following such failure. In addition, under the terms of the Series C Preferred Stock, PlainsCapital may only declare and pay dividends on its common stock (or repurchase shares of its common stock), if, after payment of such dividend, the dollar amount of PlainsCapital's Tier 1 capital would be at least ninety percent (90%) of Tier 1 capital as of September 27, 2011, excluding any charge-offs and redemptions of the Series C Preferred Stock (the "Tier 1 Dividend Threshold"). The Tier 1 Dividend Threshold is subject to reduction, beginning

52

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PlainsCapital Corporation and Subsidiaries

Notes to Consolidated Financial Statements (Continued)

December 31, 2011

17. Shareholders' Equity (Continued)

January 1, 2014, based upon the extent by which, if at all, the QSBL at September 30, 2013 has increased over the baseline.

        PlainsCapital may redeem the Series C Preferred Stock at any time at its option, at a redemption price of 100% of the liquidation amount plus accrued but unpaid dividends, subject to the approval of its federal banking regulator.

        On September 27, 2011, PlainsCapital entered into a repurchase letter agreement with the U.S. Treasury, pursuant to which PlainsCapital redeemed, out of the proceeds of the issuance of the Series C Preferred Stock, all 87,631 outstanding shares of PlainsCapital's Series A Preferred Stock and 4,382 outstanding shares of PlainsCapital's Series B Preferred Stock, for an aggregate redemption price of approximately $92.6 million. The Series A Preferred Stock and Series B Preferred Stock were issued on December 19, 2008 to the U.S. Treasury under the Capital Purchase Program, a part of TARP. As a result of the redemption of the Series A Preferred Stock and Series B Preferred stock PlainsCapital accelerated the net amortization of the discount/premium recorded at issuance on the two series of preferred stock. The accelerated net amortization in September 2011 was approximately $2.3 million and is included in the caption "Dividends on preferred stock and other" on PlainsCapital's consolidated statements of income.

18. Assets Segregated for Regulatory Purposes

        FSC was not required to segregate cash and securities in a special reserve account for the benefit of customers under Rule 15c3-3 of the Exchange Act as of December 31, 2011 or 2010. Assets segregated under the provisions of the Exchange Act are not available for general corporate purposes.

        FSC was not required to segregate cash or securities in a special reserve account for the benefit of proprietary accounts of introducing broker-dealers as of December 31, 2011 or 2010.

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PlainsCapital Corporation and Subsidiaries

Notes to Consolidated Financial Statements (Continued)

December 31, 2011

19. Broker-Dealer and Clearing Organization Receivables and Payables

        Broker-dealer and clearing organization receivables and payables as of December 31, 2011 and 2010 consisted of the following (in thousands):

20. Cash and Due from Banks

        Cash and due from banks consisted of the following (in thousands):

        The amounts above include interest-bearing deposits of $237.8 million and $260.3 million as of December 31, 2011 and 2010, respectively. Cash on hand and deposits at the Federal Reserve Bank satisfy regulatory reserve requirements as of December 31, 2011 and 2010.

21. Fair Value Measurements

Fair Value Measurements and Disclosures

        PlainsCapital determines fair values in compliance with The Fair Value Measurements and Disclosures Topic of the ASC (the "Fair Value Topic"). The Fair Value Topic defines fair value,

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PlainsCapital Corporation and Subsidiaries

Notes to Consolidated Financial Statements (Continued)

December 31, 2011

21. Fair Value Measurements (Continued)

establishes a framework for measuring fair value in generally accepted accounting principles and expands disclosures about fair value measurements. The Fair Value Topic defines fair value as the price that would be received to sell an asset or paid to transfer a liability in an orderly transaction between market participants. The Fair Value Topic assumes that transactions upon which fair value measurements are based occur in the principal market for the asset or liability being measured. Further, fair value measurements made under the Fair Value Topic exclude transaction costs and are not the result of forced transactions.

        The Fair Value Topic creates a fair value hierarchy that classifies fair value measurements based upon the inputs used in valuing the assets or liabilities that are the subject of fair value measurements. The fair value hierarchy gives the highest priority to quoted prices in active markets for identical assets or liabilities and the lowest priority to unobservable inputs, as indicated below.

•

Level 1 Inputs:  Unadjusted quoted prices in active markets for identical assets or liabilities that PlainsCapital can access at the measurement date.



•

Level 2 Inputs:  Observable inputs other than Level 1 prices. Level 2 inputs include quoted prices for similar assets or liabilities in active markets, quoted prices for identical or similar assets or liabilities in markets that are not active, inputs other than quoted prices that are observable for the asset or liability (e.g. interest rates and credit risks), and inputs that are derived from or corroborated by market data, among others.



•

Level 3 Inputs:  Unobservable inputs that reflect an entity's own assumptions about the assumptions that market participants would use in pricing the assets or liabilities. Level 3 inputs include pricing models and discounted cash flow techniques, among others.

Fair Value Option

        PlainsCapital has elected to measure substantially all of PrimeLending's mortgage loans held for sale and certain time deposits at fair value under the provisions of the Fair Value Option. PlainsCapital elected to apply the provisions of the Fair Value Option to these items so that it would have the opportunity to mitigate volatility in reported earnings caused by measuring related assets and liabilities differently without having to apply complex hedge accounting provisions. PlainsCapital determines the fair value of the financial instruments accounted for under the provisions of the Fair Value Option in compliance with the provisions of the Fair Value Topic discussed above.

        As of December 31, 2011, the aggregate fair value of PrimeLending loans held for sale accounted for under the Fair Value Option was $775.3 million, while the unpaid principal balance of those loans was $752.8 million. As of December 31, 2010, the aggregate fair value of PrimeLending loans held for sale accounted for under the Fair Value Option was $476.4 million, while the unpaid principal balance of those loans was $465.3 million. The interest component of fair value is reported as interest income on loans in the income statement.

        PlainsCapital holds a number of financial instruments that are measured at fair value on a recurring basis, either by the application of Fair Value Option or other authoritative pronouncements. The fair values of those instruments are determined as described below.

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PlainsCapital Corporation and Subsidiaries

Notes to Consolidated Financial Statements (Continued)

December 31, 2011

21. Fair Value Measurements (Continued)

        Loans Held for Sale—Mortgage loans held for sale are reported at fair value, as discussed above, using Level 2 inputs that consist of commitments on hand from investors or prevailing market prices. These instruments are held for relatively short periods, typically no more than 30 days. As a result, changes in instrument-specific credit risk are not a significant component of the change in fair value.

        Securities Available for Sale—Most securities available for sale are reported at fair value using Level 2 inputs. PlainsCapital obtains fair value measurements from an independent pricing service. The fair value measurements consider observable data that may include dealer quotes, market spreads, cash flows, the U.S. Treasury yield curve, live trading levels, trade execution data, market consensus prepayment speeds, credit information and the financial instruments' terms and conditions, among other things. As of December 31, 2011, PlainsCapital Bank held auction rate bonds purchased as a result of the First Southwest acquisition. The estimated fair value of the auction rate securities is determined quarterly by a third-party valuation specialist using Level 3 inputs, primarily due to the lack of observable market data. Inputs for the valuation were developed using terms of the auction rate bonds, market interest rates, asset appropriate credit transition matrices and recovery rates, and assumptions regarding the term to maturity of the auction rate bonds. The following table reconciles the beginning and ending balances of assets measured at fair value using Level 3 inputs (in thousands):

        During the first quarter of 2011, auction rate bonds with a net carrying amount of $28.6 million were transferred from held to maturity to available for sale in response to a downgrade in credit rating from investment grade to below investment grade. PlainsCapital Bank uses the date of the transfer to determine when the auction rate bonds entered Level 3.

        Trading Securities—Trading securities are reported at fair value using Level 2 inputs in the same manner as discussed previously for securities available for sale.

        Deposits—As discussed previously, certain time deposits are reported at fair value by virtue of an election under the provisions of Fair Value Option. Fair values are determined using Level 2 inputs that consist of observable rates paid on instruments of the same tenor in the brokered certificate of deposit market.

        Derivatives—Derivatives are reported at fair value using Level 2 inputs. PlainsCapital uses dealer quotes to determine the fair value of interest rate swaps used to hedge time deposits. PrimeLending uses dealer quotes to value forward purchase commitments executed for both hedging and non-hedging purposes. PrimeLending also issues IRLCs to its customers that it values based on the change in the fair value of the underlying mortgage loan from inception of the IRLC to the balance sheet date,

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PlainsCapital Corporation and Subsidiaries

Notes to Consolidated Financial Statements (Continued)

December 31, 2011

21. Fair Value Measurements (Continued)

adjusted for projected loan closing rates. PrimeLending determines the value of the underlying mortgage loan as discussed in "Loans Held for Sale", above.

        The following table presents information regarding financial assets and liabilities measured at fair value on a recurring basis (in thousands):

        The following table presents the changes in fair value for instruments that are reported at fair value under an election under the Fair Value Option (in thousands):

        PlainsCapital also determines the fair value of certain assets and liabilities on a non-recurring basis. For example, facts and circumstances may dictate a fair value measurement when there is evidence of impairment. Assets and liabilities measured on a non-recurring basis include the items discussed below.

        Impaired Loans—PlainsCapital reports impaired loans at fair value through allocations of the allowance for loan losses. PlainsCapital primarily determines fair value using Level 2 inputs consisting of independent appraisals. As of December 31, 2011, loans with a carrying amount of $35.3 million had been reduced by allocations of the allowance for loan losses of $8.8 million, resulting in a reported fair value of $26.5 million.

        Other Real Estate Owned—PlainsCapital reports other real estate owned at fair value less estimated cost to sell. Any excess of recorded investment over fair value less cost to sell is charged against the allowance for loan losses when property is initially transferred to other real estate. Subsequent to the initial transfer to other real estate, valuation adjustments are charged against earnings. PlainsCapital primarily determines fair value using Level 2 inputs consisting of independent appraisals. As of December 31, 2011, the estimated fair value of other real estate owned was $30.3 million.

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PlainsCapital Corporation and Subsidiaries

Notes to Consolidated Financial Statements (Continued)

December 31, 2011

21. Fair Value Measurements (Continued)

        The Fair Value of Financial Instruments Subsection of the ASC requires disclosure of the fair value of financial assets and liabilities, including the financial assets and liabilities previously discussed. The methods for determining estimated fair value for financial assets and liabilities measured at fair value on a recurring or non-recurring basis are discussed above. For other financial assets and liabilities, PlainsCapital utilizes quoted market prices, if available, to estimate the fair value of financial instruments. Because no quoted market prices exist for a significant portion of PlainsCapital's financial instruments, the fair value of such instruments has been derived based on management's assumptions with respect to future economic conditions, the amount and timing of future cash flows, and estimated discount rates. Different assumptions could significantly affect these estimates. Accordingly, the estimates provided herein do not necessarily indicate amounts which could be realized in a current transaction. Further, as it is management's intent to hold a significant portion of its financial instruments to maturity, it is not probable that the fair values shown below will be realized in a current transaction.

        Because of the wide range of permissible valuation techniques and the numerous estimates which must be made, it may be difficult to make reasonable comparisons of PlainsCapital's fair value information to that of other financial institutions. The aggregate estimated fair value amount should in no way be construed as representative of the underlying value of PlainsCapital and its subsidiaries.

        The following methods and assumptions were used in estimating the fair value disclosures for financial instruments:

        Cash and Short-Term Investments—For cash and due from banks and federal funds sold, the carrying amount is a reasonable estimate of fair value.

        Loans Held for Sale—Estimated fair values of loans held for sale are based on commitments on hand from investors or prevailing market prices. The carrying amount of mortgage loans held for sale has been adjusted to fair value under the provisions of the Fair Value Option.

        Securities—For securities held to maturity, except for the valuation of auction rate bonds discussed previously, estimated fair value equals quoted market price, if available. If a quoted market price is not available, fair value is estimated using quoted market prices for similar securities. For securities available for sale and trading securities, the carrying amount is a reasonable estimate of fair value.

        Loans—The fair value of loans is estimated by discounting the future cash flows using the current rates at which similar loans would be made to borrowers with similar credit ratings and for the same remaining maturities.

        Broker-Dealer and Clearing Organization Receivables—The carrying amount approximates their fair value.

        Fee Award Receivable—The carrying amount approximates fair value.

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PlainsCapital Corporation and Subsidiaries

Notes to Consolidated Financial Statements (Continued)

December 31, 2011

21. Fair Value Measurements (Continued)

        Cash Surrender Value of Life Insurance Policies and Accrued Interest—The carrying amounts approximate their fair values.

        Deposit Liabilities—The estimated fair value of demand deposits, savings accounts and NOW accounts is the amount payable on demand at the reporting date. The fair value of fixed-maturity certificates of deposit is estimated using the rates currently offered for deposits of similar remaining maturities. The carrying amount for variable-rate certificates of deposit approximates their fair values.

        Broker-Dealer and Clearing Organization Payables—The carrying amount approximates their fair value.

        Short-Term Borrowings—The carrying amounts of federal funds purchased, borrowings under repurchase agreements and other short-term borrowings approximate their fair values.

        Debt—The fair values are estimated using discounted cash flow analysis based on PlainsCapital's current incremental borrowing rates for similar types of borrowing arrangements.

        The estimated fair values of PlainsCapital's financial instruments are shown below (in thousands):

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PlainsCapital Corporation and Subsidiaries

Notes to Consolidated Financial Statements (Continued)

December 31, 2011

21. Fair Value Measurements (Continued)

        The deferred income amounts arising from unrecognized financial instruments are not significant. These financial instruments also have contractual interest rates at or above current market rates. Therefore, no fair value disclosure is provided for these items.

22. Derivative Financial Instruments

        PlainsCapital Bank and PrimeLending use various derivative financial instruments to mitigate interest rate risk. PlainsCapital Bank's interest rate risk management strategy involves effectively modifying the re-pricing characteristics of certain assets and liabilities so that changes in interest rates do not adversely affect the net interest margin. PrimeLending has interest rate risk relative to its inventory of mortgage loans held for sale and IRLCs. PrimeLending is exposed to such rate risk from the time an IRLC is made to an applicant to the time the related mortgage loan is sold.

Cash Flow Hedges

        PlainsCapital Bank entered into interest rate swap agreements to manage interest rate risk associated with certain customer contracts. The swaps were originally designated as cash flow hedges. The swaps were highly effective in offsetting future cash flow volatility caused by changes in interest rates. PlainsCapital Bank has recorded the fair value of the swaps in other assets, and unrealized gains (losses) associated with the swaps in other comprehensive income.

Non-Hedging Derivative Instruments and the Fair Value Option

        As discussed in Note 21, PrimeLending has elected to measure substantially all mortgage loans held for sale at fair value under the provisions of the Fair Value Option. The election provides PrimeLending the opportunity to mitigate volatility in reported earnings caused by measuring related assets and liabilities differently without applying complex hedge accounting provisions. PrimeLending provides IRLCs to its customers and executes forward purchase commitments to sell mortgage loans. The fair values of both IRLCs and purchase commitments are recorded in other assets or other liabilities, as appropriate. Changes in the fair values of these derivative instruments produced net gains of approximately $3.1 million and $1.5 million for the years ended December 31, 2011 and 2010. The net gains were recorded as a component of gain on sale of loans.

        Year-end derivative positions are presented in the following table (in thousands):

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PlainsCapital Corporation and Subsidiaries

Notes to Consolidated Financial Statements (Continued)

December 31, 2011

22. Derivative Financial Instruments (Continued)

        PlainsCapital Bank recorded unrealized gains (losses), net of reclassifications adjustments, on the swaps designated as cash flow hedges in other comprehensive income as shown in the following table (in thousands):

23. Other Noninterest Income and Expense

        The following tables show the components of other noninterest income and expense for the years ended December 31, 2011, 2010 and 2009 (in thousands):

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Notes to Consolidated Financial Statements (Continued)

December 31, 2011

24. Segment and Related Information

        PlainsCapital has three reportable segments that are organized primarily by the core products offered to the segments' respective customers. The banking segment includes the operations of PlainsCapital Bank. The operations of PrimeLending comprise the mortgage origination segment. The financial advisory segment is composed of First Southwest and Hester Capital.

        Balance sheet amounts for PlainsCapital and its remaining subsidiaries not discussed in the previous paragraph are included in "All Other and Eliminations."

        The following tables present information about the revenues, profits and assets of PlainsCapital's reportable segments (in thousands):

Income Statement Data

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Notes to Consolidated Financial Statements (Continued)

December 31, 2011

24. Segment and Related Information (Continued)

Balance Sheet Data

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Notes to Consolidated Financial Statements (Continued)

December 31, 2011

24. Segment and Related Information (Continued)

Income Statement Data

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Notes to Consolidated Financial Statements (Continued)

December 31, 2011

24. Segment and Related Information (Continued)

Balance Sheet Data

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Notes to Consolidated Financial Statements (Continued)

December 31, 2011

24. Segment and Related Information (Continued)

Income Statement Data

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Notes to Consolidated Financial Statements (Continued)

December 31, 2011

24. Segment and Related Information (Continued)

Balance Sheet Data

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Notes to Consolidated Financial Statements (Continued)

December 31, 2011

25. Earnings per Common Share

        The following table presents the computation of basic and diluted earnings per common share for the years ended December 31, 2011, 2010 and 2009 (in thousands, except per share data):

        PlainsCapital uses the two-class method prescribed by the Earnings per Share Topic of the ASC to compute earnings per common share. Participating securities include non-vested restricted stock and shares of PlainsCapital stock held in escrow pending the resolution of contingencies with respect to the First Southwest acquisition.

        The weighted-average shares outstanding used to compute diluted earnings per common share do not include outstanding options of 152,679, 160,959 and 180,489 for the years ended 2011, 2010 and 2009, respectively. The exercise price of the excluded options exceeded the estimated average market price of PlainsCapital stock in the years shown. Accordingly, the assumed exercise of the excluded options would have been antidilutive.

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Notes to Consolidated Financial Statements (Continued)

December 31, 2011

26. Condensed Financial Statements of PlainsCapital

        Condensed financial statements of PlainsCapital (parent only) follow (in thousands). Investments in subsidiaries are determined using the equity method of accounting.

Condensed Statements of Income

Condensed Balance Sheets

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Notes to Consolidated Financial Statements (Continued)

December 31, 2011

26. Condensed Financial Statements of PlainsCapital (Continued)

Condensed Statements of Cash Flows

27. Recently Issued Accounting Standards

Improving Disclosures about Fair Value Measurements

        In January 2010, the FASB amended the Fair Value Measurements and Disclosures Topic of the ASC to expand required disclosures related to fair value measurements ("Improved Fair Value Disclosure Amendment"). The Improved Fair Value Disclosure Amendment requires disclosures regarding significant transfers between Level 1 and Level 2 of the fair value hierarchy and the reasons for the transfers, reasons for transfers in or out of Level 3 of the fair value hierarchy, as well as separate disclosure of significant transfers, and policies for determining when transfers between levels of the fair value hierarchy are recognized. In addition, the Improved Fair Value Disclosure Amendment

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Notes to Consolidated Financial Statements (Continued)

December 31, 2011

27. Recently Issued Accounting Standards (Continued)

requires gross presentation of purchases, sales, issuances and settlements of financial instruments that are measured on a recurring basis using Level 3 inputs.

        The Improved Fair Value Disclosure Amendment also clarifies that fair value measurement disclosures should be provided for each class of assets and liabilities, rather than major category, and that valuation techniques and inputs used to measure fair value on a recurring or nonrecurring basis should be provided for each class of assets and liabilities included in Levels 2 and 3 of the fair value hierarchy. The Improved Fair Value Disclosure Amendment became effective for PlainsCapital on January 1, 2010, except for the provisions relating to gross presentation of purchases, sales, issuances and settlements of assets and liabilities included in Level 3 of the fair value hierarchy, which become effective January 1, 2011. The adoption of the Improved Fair Value Disclosure Amendment did not have a significant effect on PlainsCapital's financial position, results of operations or cash flows. PlainsCapital has included the disclosures required by the Improved Fair Value Disclosure Amendment in Note 21.

Disclosures about the Credit Quality of Financing Receivables and the Allowance for Credit Losses

        In July 2010, the FASB amended the Receivables Topic of the ASC to require entities to provide disclosures designed to facilitate financial statement users' evaluation of (i) the nature of credit risk inherent in the entity's portfolio of financing receivables, (ii) how that risk is analyzed and assessed in arriving at the allowance for credit losses and (iii) the changes and reasons for those changes in the allowance for credit losses. Disclosures must be disaggregated by portfolio segment, the level at which an entity develops and documents a systematic method for determining its allowance for credit losses. Certain of the disclosures require disaggregation by class of financing receivable, which is generally a disaggregation of portfolio segment. The required disclosures include, among other things, a rollforward of the allowance for credit losses as well as information about modified, impaired, non-accrual and past due loans and credit quality indicators. These amendments to the Receivables Topic became effective for PlainsCapital as of December 31, 2010, as it relates to disclosures required as of the end of a reporting period. Disclosures that relate to activity during a reporting period became effective January 1, 2011, except for the disclosures regarding TDRs. PlainsCapital has included the required disclosures regarding credit quality of financing receivables and the allowance for credit losses in Note 3.

A Creditor's Determination of Whether a Restructuring is a Troubled Debt Restructuring

        In April 2011, the FASB amended the Receivables Topic of the ASC to clarify when creditors should classify loan modifications as TDRs ("TDR Amendment"). The TDR Amendment requires creditors to separately conclude that a creditor has granted a concession to a debtor and that the debtor is experiencing financial difficulties in order to classify a loan modification as a troubled debt restructuring. The TDR Amendment became effective for PlainsCapital on July 1, 2011, and has been applied retrospectively to January 1, 2011. The adoption of the TDR Amendment did not have a significant effect on PlainsCapital's financial position, results of operations or cash flows.

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Notes to Consolidated Financial Statements (Continued)

December 31, 2011

27. Recently Issued Accounting Standards (Continued)

Comprehensive Income

        In June 2011, the FASB amended the Comprehensive Income Topic of the ASC to revise the manner in which entities present comprehensive income in their financial statements. Beginning January 1, 2012, PlainsCapital will present the components of comprehensive income in either a continuous statement of comprehensive income or two separate but consecutive statements, rather than in the statement of shareholders' equity, as it does currently. PlainsCapital does not expect the adoption of the amendment to have a significant effect on its financial position, results of operations or cash flows.

Testing Goodwill for Impairment

        In September 2011, the FASB amended the Intangibles Topic of the ASC to simplify how entities test goodwill for impairment. Entities have the option to qualitatively test whether it is more likely than not that the fair value of a reporting unit is less than its carrying amount in determining whether step one of the annual goodwill impairment test is necessary. PlainsCapital early adopted the amendments in the fourth quarter of 2011 and the adoption of the amendment did not have a significant effect on its financial position, results of operations or cash flows.

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QuickLinks

Exhibit 99.1

Consolidated financial statements PlainsCapital Corporation and subsidiaries Years ended December 31, 2011, 2010 and 2009
Report of Independent Registered Public Accounting Firm
PlainsCapital Corporation and Subsidiaries Consolidated Balance Sheets December 31,
PlainsCapital Corporation and Subsidiaries Consolidated Statements of Income For the Years Ended December 31, (In thousands, except per share amounts)
PlainsCapital Corporation and Subsidiaries Consolidated Statements of Comprehensive Income For the Years Ended December 31, (In thousands)
PlainsCapital Corporation and Subsidiaries Consolidated Statements of Cash Flows For the Years Ended December 31, (In thousands)
PlainsCapital Corporation and Subsidiaries Notes to Consolidated Financial Statements December 31, 2011