UNITED STATES SECURITIES AND EXCHANGE COMMISSION

WASHINGTON, D.C. 20549

FORM 8-K

CURRENT REPORT

Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934

Date of Report (Date of earliest event reported): August 17, 2011

Registrant’s telephone number, including area code: (617) 482-8260

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions (see General Instruction A.2. below):

¨ Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)

¨ Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)

¨ Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))

¨ Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

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INFORMATION INCLUDED IN THE REPORT

Item 2.02.     Results of Operations and Financial Condition

     Registrant has reported its results of operations for the three and nine months ended July 31, 2010, as described in Registrant’s news release dated August 17, 2011, a copy of which is furnished herewith as Exhibit 99.1 and incorporated herein by reference.

Item 9.01.     Financial Statements and Exhibits

Exhibit No.     Document

99.1                 Press release issued by the Registrant dated August 17, 2011.

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SIGNATURES

     Pursuant to the requirements of the Securities Exchange Act of 1934, the Registrant has duly caused this Report to be signed on its behalf by the undersigned hereunto duly authorized.

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EXHIBIT INDEX

     Each exhibit is listed in this index according to the number assigned to it in the exhibit table set forth in Item 601 of Regulation S-K. The following exhibit is filed as part of this Report:

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Exhibit 99.1

Eaton Vance Corp.

Report for the Three and Nine Month Periods Ended July 31, 2011

Boston, MA, August 17, 2011 – Eaton Vance Corp. (NYSE: EV) earned a record $0.55 per diluted share in the third quarter of fiscal 2011 compared to earnings per diluted share of $0.34 in the third quarter of fiscal 2010 and $0.50 in the second quarter of fiscal 2011. Earnings per diluted share were reduced $0.01 in the third quarter of fiscal 2010 by expenses associated with the initial public offering of a closed-end fund launched during the quarter. Earnings per diluted share were increased $0.03 in the second quarter of fiscal 2011 by a gain realized upon the sale of the Company’s equity interest in Lloyd George Management (BVI) Limited (“Lloyd George Management”) during the quarter. Earnings per diluted share were reduced $0.02 in the second quarter of fiscal 2011 by adjustments in connection with increases in the estimated redemption value of non-controlling interests redeemable at other than fair value (“non-controlling interest value adjustments”), as described in more detail below. The Company earned $1.35 per diluted share in the first nine months of fiscal 2011 compared to $0.99 per diluted share in the first nine months of fiscal 2010. Earnings per diluted share were reduced $0.17 in the first nine months of fiscal 2011 and $0.09 in the first nine months of fiscal 2010 by non-controlling interest value adjustments.

Net inflows of $1.9 billion into long-term funds and separate accounts in the third quarter of fiscal 2011 compare to net inflows of $4.8 billion in the third quarter of fiscal 2010 and $2.9 billion in the second quarter of fiscal 2011. The Company’s annualized internal growth rate (four times quarterly long-term net inflows divided by beginning of period long-term assets managed) was 4 percent in the third quarter of fiscal 2011.

Assets under management on July 31, 2011 were $199.0 billion. This represents an increase of 15 percent from the $173.3 billion of managed assets as of July 31, 2010 and a decrease of 2 percent from the $203.0 billion of managed assets as of April 30, 2011.

“Eaton Vance reported strong year-over-year profit growth and continuing positive net flows in the third quarter of fiscal 2011,” said Thomas E. Faust Jr., Chairman and Chief Executive Officer. “The Company’s broadly based business, high operating performance and strong balance sheet position us well for the more challenging market environment we are now experiencing.”

Comparison to Third Quarter of Fiscal 2010

Long-term fund net inflows of $0.1 billion in the third quarter of fiscal 2011 compare to $3.4 billion of long-term fund net inflows in the third quarter of fiscal 2010, and reflect $7.3 billion of fund sales and other inflows and $7.2 billion of fund redemptions and other outflows. The $1.8 billion of institutional separate account net inflows in the third quarter of fiscal 2011 compare to $1.5 billion of institutional separate account net inflows in the third quarter of fiscal 2010, and reflect gross inflows of $4.3 billion and $2.5 billion of outflows. High-net-worth separate account gross inflows of $0.5 billion were offset by $0.5 billion of outflows, and compare to net outflows of $0.2 billion in the third quarter of fiscal 2010. Retail managed account gross inflows of $1.5 billion in the third quarter of fiscal 2011 were offset by $1.5 billion of outflows, and compare to $0.1 billion of retail managed account net inflows in the third quarter of fiscal 2010. Tables 1-4 on pages 8 and 9 summarize the Company’s assets under management and asset flows by investment mandate.

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Revenue in the third quarter of fiscal 2011 increased $54.2 million, or 20 percent, to $327.3 million from revenue of $273.1 million in the third quarter of fiscal 2010. Investment advisory and administration fees increased 22 percent to $262.1 million, reflecting an 18 percent increase in average assets under management. Distribution and underwriter fees increased 9 percent due to an increase in average fund assets on which distribution fees are collected, partly offset by a reduction in underwriter fees collected on Class A fund sales. Service fee revenue increased 9 percent due to an increase in average fund assets subject to service fees. Other revenue, which increased by $1.6 million, included $0.5 million of net losses on investments of consolidated funds in the third quarter of fiscal 2011 compared to $1.9 million of net losses on investments of consolidated funds in the third quarter of fiscal 2010.

Operating expenses increased $17.3 million, or 9 percent, to $211.6 million in the third quarter of fiscal 2011 compared to operating expenses of $194.3 million in the third quarter of fiscal 2010. Compensation expense increased 10 percent due to increases in employee headcount and higher base salaries, adjusted operating income-based bonus accruals, stock-based compensation, employee benefits and payroll taxes. Distribution expense was substantially unchanged from the prior fiscal year’s third quarter, reflecting a decrease of $2.6 million in closed-end fund related structuring fees and offsetting increases in intermediary marketing support payments and Class C distribution fees. Service fee expense increased 11 percent, in line with the increase in assets subject to service fees. Amortization of deferred sales commissions decreased 7 percent, reflecting a decrease in Class B amortization consistent with a declining trend in Class B fund share sales and assets. Fund expenses increased 29 percent from the third quarter of fiscal 2010 due to an increase in subadvisory expenses. Other expenses increased 14 percent, reflecting increases in professional services, information technology and facilities, offset by a decrease in travel expenses.

Operating income in the third quarter of fiscal 2011 was $115.7 million, an increase of 47 percent over operating income of $78.8 million in the third quarter of fiscal 2010. The Company’s operating margin improved to 35.3 percent in the third quarter of fiscal 2011 from 28.8 percent in the third quarter of fiscal 2010.

In evaluating operating performance, the Company considers operating income and net income, which are calculated on a basis consistent with accounting principles generally accepted in the United States of America (“GAAP”), as well as adjusted operating income, an internally derived non-GAAP performance measure. Adjusted operating income is defined as operating income excluding the results of consolidated funds and collateralized loan obligation (“CLO”) entities and adding back closed-end fund structuring fees, stock-based compensation, write-offs of intangible assets and other items that we consider non-operating in nature. The Company believes that adjusted operating income is a key indicator of the Company’s ongoing profitability and therefore uses this measure as the basis for calculating performance-based management incentives. Adjusted operating income is not, and should not be construed to be, a substitute for operating income computed in accordance with GAAP. However, in assessing the performance of the business, management and the Board of Directors look at adjusted operating income as a measure of underlying performance, since operating results of consolidated funds and CLO entities and amounts resulting from one-time events do not necessarily represent normal results of operations. In addition, when assessing performance, management and the Board look at performance both with and without stock-based compensation, a non-cash operating expense.

Adjusted operating income of $128.4 million in the third quarter of fiscal 2011 was the highest quarterly adjusted operating income in the Company’s history, up 36 percent from $94.7 million in the third quarter of fiscal 2010. The Company’s adjusted operating margin improved to 39.2 percent in the third quarter of fiscal 2011 from 34.7 percent in the third quarter of fiscal 2010.

The following table provides a reconciliation of operating income to adjusted operating income for the periods presented:

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In the third quarter of fiscal 2011, the Company recognized $6.3 million of net investment gains, primarily reflecting gains related to the Company’s seed investments, including a $1.9 million gain recognized upon the sale of the Company’s interest in a CLO entity. The Company recognized $1.3 million of net investment gains in the third quarter of fiscal 2010. Also included in other income and expenses for the third quarter of fiscal 2011 are net losses of $2.5 million associated with the consolidation of a CLO entity attributable to an increase in the fair market value of the note obligations issued by the entity. This loss was substantially offset by an increase in net loss attributable to non-controlling and other beneficial interests, as the consolidated CLO entity loss is largely borne by the CLO entity’s outside investors rather than the Company.

The Company’s effective tax rate, calculated as a percentage of income before income taxes and equity in net income (loss) of affiliates, was 38.7 percent and 39.9 percent in the third quarter of fiscal 2011 and fiscal 2010, respectively.

In the third quarter of fiscal 2011, net income attributable to non-controlling and other beneficial interests decreased $0.9 million from the third quarter of fiscal 2010, primarily reflecting $3.5 million of consolidated CLO entity loss borne by other beneficial interest holders and a $2.6 million increase in non-controlling beneficial interest associated with the Company’s majority-owned subsidiaries and consolidated funds.

Net income attributable to Eaton Vance Corp. shareholders was $68.1 million in the third quarter of fiscal 2011 compared to $41.8 million in the third quarter of fiscal 2010, an increase of 63 percent.

Comparison to Second Quarter of Fiscal 2011

Long-term fund net inflows of $0.1 billion in the third quarter of fiscal 2011 compare to $2.2 billion of long-term fund net inflows in the second quarter of fiscal 2011. The $1.8 billion of institutional separate account net inflows in the third quarter of fiscal 2011 compare to institutional separate account net outflows of $0.3 billion in the second quarter of fiscal 2011. The substantially flat net flows into high-net-worth separate accounts and retail managed accounts in the third quarter of fiscal 2011 compare to $0.2 billion of high-net-worth separate account net inflows and $0.8 billion of retail managed account net inflows in the second quarter of fiscal 2011. Tables 1-4 on pages 8 and 9 summarize the Company’s assets under management and asset flows by investment mandate.

Revenue in the third quarter of fiscal 2011 increased $1.5 million to $327.3 million from $325.8 million in the second quarter of fiscal 2011. Investment advisory and administration fees increased 4 percent to $262.1 million, reflecting a 2 percent increase in average assets under management and a modest increase in average fee realization rates. Distribution and underwriter fees increased 1 percent and service fee revenue increased 3 percent due to an increase in the number of fee days in the quarter offset by a decrease in average fund assets that pay these fees. Other revenue, which decreased $10.2 million from the prior quarter, included $0.5 million of net losses

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on investments of consolidated funds recognized in the third quarter of fiscal 2011 compared to $7.3 million of net gains on investments of consolidated funds in the second quarter of fiscal 2011.

Operating expenses increased $2.8 million to $211.6 million in the third quarter of fiscal 2011 from $208.8 million in the second quarter of fiscal 2011. Compensation decreased 3 percent from the second quarter of fiscal 2011, reflecting decreases in sales-based incentives and payroll taxes offset by increases in headcount and higher base salaries and adjusted operating income-based bonus accruals. Distribution expense was substantially unchanged from the prior fiscal quarter, as increases in Class C distribution fees were offset by a decrease in marketing expenses. Service fee expense increased 5 percent due to an increase in the number of fee days in the quarter offset by a decrease in assets subject to service fees. Amortization expense decreased 12 percent from the prior fiscal quarter due to a decrease in Class B and Class C amortization. Fund expenses increased 61 percent from the second quarter of fiscal 2011 due to an increase in subadvisory fees and fund expenses contractually borne by the Company. Other expenses increased 6 percent from the second quarter due to increases in information technology, professional services and communications expenses offset by a decrease in travel expenses.

Operating income in the third quarter of fiscal 2011 was $115.7 million, a decrease of 1 percent from operating income of $117.0 million in the second quarter of fiscal 2011. The Company’s operating margin declined slightly to 35.3 percent in the third quarter of fiscal 2011 from 35.9 percent in the second quarter of fiscal 2011. Adjusted operating income of $128.4 million in the third quarter of fiscal 2011 was 7 percent higher than the $120.0 million of adjusted operating income in the second quarter of fiscal 2011. The Company’s adjusted operating margin of 39.2 percent in the third quarter of fiscal 2011 improved from 36.8 percent in the second quarter of fiscal 2011.

Interest income decreased 13 percent in the third quarter of fiscal 2011 compared to the second quarter of fiscal 2011 due to lower effective interest rates earned on cash balances. The $6.3 million of net investment gains recognized in the third quarter of fiscal 2011 compare to $2.0 million of net investment gains in the second quarter of fiscal 2011, which included a $5.5 million gain recognized upon the sale of the Company’s equity interest in Lloyd George Management. Also included in other income and expenses for the third quarter of fiscal 2011 and second quarter of fiscal 2011 were net losses of $2.5 million and $17.0 million, respectively, attributable to an increase in the fair market value of the note obligations issued by a consolidated CLO entity. For both quarters, this loss was substantially offset by an increase in net loss attributable to non-controlling and other beneficial interests.

The Company’s effective tax rate, calculated as a percentage of income before income taxes and equity in net income (loss) of affiliates, was 38.7 percent and 44.0 percent in the third quarter of fiscal 2011 and second quarter of fiscal 2011, respectively. The decrease in the Company’s effective tax rate was due primarily to lower reported CLO entity losses, which are not subject to current tax, in the third quarter of fiscal 2011 compared to the prior quarter.

Net income attributable to non-controlling and other beneficial interests increased $9.6 million in the third quarter of fiscal 2011 from the prior quarter. The increase can be primarily attributed to a $14.5 million decrease in non-controlling beneficial interest associated with the consolidated CLO entity and a $2.4 million decrease in non-controlling beneficial interest associated with consolidated funds. Also included in net income attributable to non-controlling and other beneficial interests are non-controlling interest value adjustments of $2.4 million in the second quarter of fiscal 2011 relating to our subsidiary Parametric Risk Advisors. The non-controlling interest value adjustment recognized in the second quarter is attributable to Parametric Risk Advisors’ profit growth over the twelve months ended April 30, 2011.

Net income attributable to Eaton Vance Corp. shareholders was $68.1 million in the third quarter of fiscal 2011 compared to $62.5 million in the second quarter of fiscal 2011, an increase of 9 percent.

Cash and cash equivalents totaled $502.3 million on July 31, 2011 compared to $307.9 million on October 31, 2010. There were no outstanding borrowings against the Company’s $200.0 million

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credit facility on July 31, 2011. During the first nine months of fiscal 2011, the Company used $118.9 million to repurchase and retire approximately 3.8 million shares of its Non-Voting Common Stock under its repurchase authorizations. Over the twelve months ended July 31, 2011, the Company used $161.3 million to repurchase and retire approximately 5.3 million shares of its Non-Voting Common Stock and paid $83.0 million of dividends to shareholders. Approximately 7.7 million shares remain unused of the current 8.0 million share repurchase authorization.

Eaton Vance Corp. is one of the oldest investment management firms in the United States, with a history dating back to 1924. Eaton Vance and its affiliates offer individuals and institutions a broad array of investment strategies and wealth management solutions. The Company’s long record of providing exemplary service and attractive returns through a variety of market conditions has made Eaton Vance the investment manager of choice for many of today’s most discerning investors. For more information about Eaton Vance, visit www.eatonvance.com.

This news release contains statements that are not historical facts, referred to as “forward-looking statements.” The Company’s actual future results may differ significantly from those stated in any forward-looking statements, depending on factors such as changes in securities or financial markets or general economic conditions, client sales and redemption activity, the continuation of investment advisory, administration, distribution and service contracts, and other risks discussed from

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