Exhibit 99.1

STIFEL FINANCIAL CORP. REPORTS THIRD QUARTER 2012 FINANCIAL RESULTS

Record Net Revenues for the Three Months Ended September 30, 2012

Record Net Revenues and Net Income for the Nine Months Ended September 30, 2012

Highlights for the three months ended September 30, 2012:

Highlights for the nine months ended September 30, 2012:

ST. LOUIS, November 5, 2012 –Stifel Financial Corp. (NYSE: SF) today reported unaudited net income of $37.7 million, or $0.60 per diluted share, on record net revenues of $420.1 million for the three months ended September 30, 2012, compared with net income of $22.3 million, or $0.35 per diluted share, on net revenues of $334.2 million for the third quarter of 2011.

For the nine months ended September 30, 2012, the Company reported record net income of $98.6 million, or $1.57 per diluted share, on net revenues of $1.2 billion, compared with net income of $57.1 million, or $0.90 per diluted share¹, on net revenues of $1.1 billion during the comparable period in 2011. Included in net revenues for the three and nine months ended September 30, 2012 is $25.6 million in realized and unrealized gains recognized on the Company’s investment in Knight Capital Group, Inc. The after-tax impact of these gains was $0.09 per diluted share.

“I am pleased with our third quarter results, which included record net revenues, as well as with our record net revenues and net income for the first nine months of 2012. Our results highlight the soundness of our balanced business model, particularly against a challenging economic backdrop. In the quarter, both the Global Wealth Management and Institutional Group segments performed well,” commented Ronald J. Kruszewski, Chairman, President and CEO of Stifel Financial. “We continue to invest in businesses that expand our client services, and which we believe will return shareholder value. Opportunities drive our growth. Today’s announcement of our merger with KBW furthers our goal of creating the premier middle-market investment bank with a specialized focus on the financial services industry.”

Summary Results of Operations (Unaudited)

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Business Segment Results

Summary Segment Results (Unaudited)

Global Wealth Management

For the quarter ended September 30, 2012, the Global Wealth Management (“GWM”) segment generated pre-tax operating income of $68.4 million, compared with $55.6 million in the third quarter of 2011 and $61.4 million in the second quarter of 2012. Net revenues for the quarter were $251.7 million, compared with $219.5 million in the third quarter of 2011, and $240.0 million in the second quarter of 2012. The increase in net revenues over the comparable period in 2011 is primarily attributable to: (1) higher principal transactions revenues, offset by a decrease in commissions revenue; (2) higher sales credits from investment banking underwritings; (3) growth in asset management and service fees as a result of an increase in assets under management and positive gains in market performance; and (4) increased net interest revenues as a result of the growth of net interest-earning assets at Stifel Bank. The increase in net revenues from the second quarter of 2012 was primarily attributable to: (1) higher sales credits from investment banking underwritings; (2) an increase in principal transactions revenues; and (3) increased net interest revenues as a result of the growth of net interest-earning assets at Stifel Bank.

Institutional Group

For the quarter ended September 30, 2012, the Institutional Group segment generated pre-tax operating income of $33.4 million, compared with $9.2 million in the third quarter of 2011 and $17.5 million in the second quarter of 2012. Net revenues for the quarter were $169.7 million, compared with $113.3 million in the third quarter of 2011 and $135.3 million in the second quarter of 2012. The increase in net revenues from the comparable period in 2011 was driven by: (1) an increase in advisory fees; (2) an increase in fixed income capital raising revenues; (3) higher fixed income institutional brokerage revenues; and (4) the realized and unrealized gains recognized on the Company’s investment in Knight Capital Group, Inc. Offsetting these increases was a decrease in equity institutional brokerage revenues. The increase in net revenues from the second quarter of 2012 was primarily attributable to: (1) an increase in fixed income institutional brokerage revenues; and (2) the realized and unrealized gains recognized on the Company’s investment in Knight Capital Group, Inc.

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Institutional brokerage revenues were $82.8 million, a 5% increase compared with the third quarter of 2011 and a 10% increase compared with the second quarter of 2012.

Investment banking revenues were $59.6 million, a 76% increase compared with the third quarter of 2011 and a 1% increase compared with the second quarter of 2012.

Consolidated Compensation and Benefits Expenses

For the quarter ended September 30, 2012, compensation and benefits expenses were $267.7 million, compared with $210.6 million in the third quarter of 2011 and $239.4 million in the second quarter of 2012.

Compensation and benefits as a percentage of net revenues was 64% in the third quarter of 2012, compared with 63% in the third quarter of 2011 and 64% in the second quarter of 2012. Transition pay, which primarily consists of amortization of upfront notes, signing bonuses and retention awards, as a percentage of net revenues was 5% in the third quarter of 2012, consistent with the third quarter of 2011 and the second quarter of 2012.

Consolidated Non-Compensation Operating Expenses

For the quarter ended September 30, 2012, non-compensation operating expenses were $90.8 million, compared to $84.6 million in the third quarter of 2011 and $91.2 million in the second quarter of 2012.

Non-compensation operating expenses as a percentage of net revenues for the quarter ended September 30, 2012 was 22% compared with 25% in the third quarter of 2011 and 24% in the second quarter of 2012. The lower ratio in the third quarter of 2012 was driven by the impact of higher revenues.

Provision for Income Taxes

The effective income tax rate for the quarter ended September 30, 2012 was 39% compared with 43% in the third quarter of 2011 and 40% in the second quarter of 2012.

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Statement of Financial Condition (Unaudited)

Total assets increased 24% to $6.1 billion as of September 30, 2012 from $4.9 billion as of September 30, 2011. The increase is primarily attributable to growth of Stifel Bank, the Company’s bank subsidiary, which as of September 30, 2012 has grown its assets to $3.2 billion from $2.3 billion as of September 30, 2011. As of September 30, 2012, Stifel Bank’s investment portfolio of $2.1 billion has increased 45% from September 30, 2011, with more than 99% of the investment portfolio comprised of investment grade securities, of which more than 71% were Government-Sponsored Enterprise guaranteed MBS or AAA-rated investments. The Company’s broker-dealer subsidiary’s gross assets and liabilities, including trading inventory, stock loan/borrow, receivables and payables from/to brokers, dealers and clearing organizations and clients, fluctuate with business levels and overall market conditions.

Total stockholders’ equity as of September 30, 2012 increased $165.4 million, or 13%, to $1.427 billion from $1.262 billion as of September 30, 2011. Book value per share was $26.62 as of September 30, 2012. The Company repurchased $9.1 million, or 0.3 million shares, of its common stock pursuant to existing Board repurchase authorizations during the nine months ended September 30, 2012.

As of September 30, 2012, the Company reported total securities owned and investments at fair value of $2.4 billion, which included securities categorized as Level 3 of $214.5 million. The Company’s Level 3 assets include auction rate securities with a fair value of $162.8 million, and private equity and other fixed income securities with a fair value $51.7 million as of September 30, 2012.

Conference Call Information

Stifel Financial Corp. will host its third quarter 2012 financial results conference call on Monday, November 5, 2012, at 8:30 a.m. Eastern time. The conference call may include forward-looking statements.

All interested parties are invited to listen to the Company’s Chairman, President, and CEO, Ronald J. Kruszewski, by dialing (800) 651-2240 and referencing conference ID #64728788. A live audio webcast of the call, as well as a presentation highlighting the Company’s results, will be available through the Company’s web site, www.stifel.com. For those who cannot listen to the live broadcast, a replay of the broadcast will be available through the above-referenced web site beginning approximately one hour following the completion of the call.

Company Information

Stifel Financial Corp. (NYSE: SF) is a financial services holding company headquartered in St. Louis, Missouri that conducts its banking, securities, and financial services business through several wholly owned subsidiaries. Stifel clients are served through Stifel, Nicolaus & Company, Incorporated in the U.S., through Stifel Nicolaus Canada Inc. in Canada, and through Stifel Nicolaus Europe Limited in the United Kingdom and Europe. The Company’s broker-dealer affiliates provide securities brokerage, investment banking, trading, investment advisory, and related financial services to individual investors, professional money managers, businesses, and municipalities. Stifel Bank & Trust offers a full range of consumer and commercial lending solutions. Stifel Trust Company, N.A. offers trust and related services. To learn more about Stifel Financial, please visit the Company’s web site at www.stifel.com.

Forward-Looking Statements

This earnings release contains certain statements that may be deemed to be “forward-looking statements” within the meaning of Section 27A of the Securities Act of 1933 and Section 21E of the Securities Exchange Act of 1934. All statements in this earnings release not dealing with historical results are forward-looking and are based on various assumptions. The forward-looking statements in this earnings release are subject to risks and uncertainties that could cause actual results to differ materially from those expressed in or implied by the statements. Factors that may cause actual results to differ materially from those contemplated by such forward-looking statements include, among other things, the following possibilities: the ability to successfully integrate acquired companies or the branch offices and financial advisors; a material adverse change in financial condition; the risk of borrower, depositor, and other customer attrition; a change in general business and economic conditions; changes in the interest rate environment, deposit flows, loan demand, real estate values, and competition; changes in accounting principles, policies, or guidelines; changes in legislation and regulation; other economic, competitive, governmental, regulatory, geopolitical, and technological factors affecting the companies’ operations, pricing, and services; and other risk factors referred to from time to time in filings made by Stifel Financial Corp. with the Securities and Exchange Commission. Forward-looking statements speak only as to the date they are made. Stifel Financial Corp. disclaims any intent or obligation to update forward-looking statements to reflect circumstances or events that occur after the date the forward-looking statements are made.

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Summary Results of Operations (Unaudited)

(in thousands, except per share, employee and location amounts)

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Global Wealth Management Summary Results of Operations (Unaudited)

Stifel Bank & Trust (Unaudited)

Key Statistical Information

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Institutional Group Summary Results of Operations (Unaudited)