Management

Investment Adviser.  Boston Management and Research (“BMR”).

Portfolio Managers

Charles Gaffney, Vice President of BMR, has managed Large-Cap Core Research Portfolio and its predecessor fund since 2007.

Thomas H. Luster, Vice President of BMR, has co-managed Investment Grade Income Portfolio since 2010.

Bernard Scozzafava, Vice President of BMR, has co-managed Investment Grade Income Portfolio since 2010.

For important information about purchase and sale of shares, taxes and financial intermediary compensation, please turn to “Important Information Regarding Fund Shares” on page 30 of this Prospectus.

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Prospectus dated May 1, 2012

Eaton Vance Dividend Builder Fund

Management

Investment Adviser.  Boston Management and Research (“BMR”).

Portfolio Manager.  The Portfolio is managed by Charles Gaffney, Vice President of BMR, who has managed the Portfolio and its predecessor fund since 2007.

For important information about purchase and sale of shares, taxes and financial intermediary compensation, please turn to “Important Information Regarding Fund Shares” on page 30 of this Prospectus.

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Prospectus dated May 1, 2012

Eaton Vance Large-Cap Growth Fund

Investment Objective

The Fund’s investment objective is to seek total return.

Fees and Expenses of the Fund

This table describes the fees and expenses that you may pay if you buy and hold shares of the Fund.   You may qualify for a reduced sales charge if you invest, or agree to invest over a 13-month period, at least $50,000 in Eaton Vance Funds.  More information about these and other discounts is available from your financial intermediary and in Sales Charges beginning on page 44 of this Prospectus and page 25 of the Fund’s Statement of Additional Information.

⁽¹⁾

Expenses in the table above and the Example below reflect the expenses of the Fund and the Portfolio.

⁽²⁾

The administrator has agreed to reimburse the Fund’s expenses to the extent that Total Annual Fund Operating Expenses exceed 1.25% for Class A shares, 2.00% for Class B and Class C shares, 1.00% for Class I shares and 1.50% for Class R shares.  This expense reimbursement will continue through April 30, 2013.  Any amendment to or a termination of this reimbursement would require written approval of the Board of Trustees.  The expense reimbursement relates to ordinary operating expenses only and does not include expenses such as:  brokerage commissions, acquired fund fees and expenses, interest expense, taxes or litigation expenses.  Amounts reimbursed may be recouped by the administrator during the Fund’s current fiscal year to the extent actual expenses are less than the contractual expense cap during such year.  

Example.  This Example is intended to help you compare the cost of investing in the Fund with the cost of investing in other mutual funds.  The Example assumes that you invest $10,000 in the Fund for the time periods indicated and then redeem all of your shares at the end of those periods.  The Example also assumes that your investment has a 5% return each year and that the operating expenses remain the same.  Although your actual costs may be higher or lower, based on these assumptions your costs would be:

Management

Investment Adviser.  Boston Management and Research (“BMR”).

Portfolio Managers.  The Portfolio is managed by a team comprised of:

Lewis R. Piantedosi, Vice President of BMR and Team Leader, has managed the Portfolio since 2002.

Yana S. Barton, Vice President of BMR, has managed the Portfolio since 2009.

For important information about purchase and sale of shares, taxes and financial intermediary compensation, please turn to “Important Information Regarding Fund Shares” on page 30 of this Prospectus.

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Prospectus dated May 1, 2012

Eaton Vance Large-Cap Value Fund

Investment Objective

The Fund’s investment objective is to seek total return.

Fees and Expenses of the Fund

This table describes the fees and expenses that you may pay if you buy and hold shares of the Fund.   You may qualify for a reduced sales charge if you invest, or agree to invest over a 13-month period, at least $50,000 in Eaton Vance Funds.  More information about these and other discounts is available from your financial intermediary and in Sales Charges beginning on page 44 of this Prospectus and page 25 of the Fund’s Statement of Additional Information.

⁽¹⁾

Expenses in the table above and the Example below reflect the expenses of the Fund and the Portfolio.

Example.  This Example is intended to help you compare the cost of investing in the Fund with the cost of investing in other mutual funds.  The Example assumes that you invest $10,000 in the Fund for the time periods indicated and then redeem all of your shares at the end of those periods.  The Example also assumes that your investment has a 5% return each year and that the operating expenses remain the same.  Although your actual costs may be higher or lower, based on these assumptions your costs would be:

Management

Investment Adviser.  Boston Management and Research (“BMR”).

Portfolio Managers.  The Portfolio is managed by a team comprised of:

Michael R. Mach, Vice President of BMR and Team Leader, has managed the Portfolio since 2000.

Matthew F. Beaudry, Vice President of BMR, has managed the Portfolio since 2009.

John D. Crowley, Vice President of BMR, has managed the Portfolio since 2009.  

Stephen J. Kaszynski, Vice President of BMR, has managed the Portfolio since 2009.

For important information about purchase and sale of shares, taxes and financial intermediary compensation, please turn to “Important Information Regarding Fund Shares” on page 30 of this Prospectus.

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Prospectus dated May 1, 2012

Eaton Vance Small-Cap Fund

Investment Objective

The Fund’s investment objective is to seek long-term capital appreciation.

Fees and Expenses of the Fund

This table describes the fees and expenses that you may pay if you buy and hold shares of the Fund.   You may qualify for a reduced sales charge if you invest, or agree to invest over a 13-month period, at least $50,000 in Eaton Vance Funds.  More information about these and other discounts is available from your financial intermediary and in Sales Charges beginning on page 44 of this Prospectus and page 25 of the Fund’s Statement of Additional Information.

Example.  This Example is intended to help you compare the cost of investing in the Fund with the cost of investing in other mutual funds.  The Example assumes that you invest $10,000 in the Fund for the time periods indicated and then redeem all of your shares at the end of those periods.  The Example also assumes that your investment has a 5% return each year and that the operating expenses remain the same.  Although your actual costs may be higher or lower, based on these assumptions your costs would be:

Management

Investment Adviser.  Boston Management and Research (“BMR”).

Portfolio Manager.  The Fund is managed by Nancy B. Tooke , Vice President of BMR, who has managed the Fund and Small-Cap Portfolio (the portfolio the Fund invested in prior to May 1, 2012) since 2006.

For important information about purchase and sale of shares, taxes and financial intermediary compensation, please turn to “Important Information Regarding Fund Shares” on page 30 of this Prospectus.

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Prospectus dated May 1, 2012

Eaton Vance Small-Cap Value Fund

Investment Objective

The Fund’s investment objective is to seek long-term total return.

Fees and Expenses of the Fund

This table describes the fees and expenses that you may pay if you buy and hold shares of the Fund.   You may qualify for a reduced sales charge if you invest, or agree to invest over a 13-month period, at least $50,000 in Eaton Vance Funds.  More information about these and other discounts is available from your financial intermediary and in Sales Charges beginning on page 44 of this Prospectus and page 25 of the Fund’s Statement of Additional Information.

⁽¹⁾

The investment adviser and administrator have agreed to reimburse the Fund’s expenses to the extent that Total Annual Fund Operating Expenses exceed 1.45% for Class A shares, 2.20% for Class B and Class C shares and 1.20% for Class I shares.  This expense reimbursement will continue through April 30, 2013.  Any amendment to or a termination of this reimbursement would require written approval of the Board of Trustees.  The expense reimbursement relates to ordinary operating expenses only and does not include expenses such as:  brokerage commissions, acquired fund fees and expenses, interest expense, taxes or litigation expenses.  Amounts reimbursed may be recouped by the investment adviser and administrator during the Fund’s current fiscal year to the extent actual expenses are less than the contractual expense cap during such year.

Example.  This Example is intended to help you compare the cost of investing in the Fund with the cost of investing in other mutual funds.  The Example assumes that you invest $10,000 in the Fund for the time periods indicated and then redeem all of your shares at the end of those periods.  The Example also assumes that your investment has a 5% return each year and that the operating expenses remain the same.  Although your actual costs may be higher or lower, based on these assumptions your costs would be:

Management

Investment Adviser.  Boston Management and Research (“BMR”).

Portfolio Managers.  The Portfolio is managed by a team comprised of:

Gregory R. Greene, Vice President of BMR, Co-Director of Fox Asset Management LLC (“Fox”) and Team Leader, has co-managed the Portfolio since 2006.

J. Bradley Ohlmuller, Vice President of BMR and Equity Portfolio Manager of Fox, has co-managed the Portfolio since 2005.

Robert J. Milmore, Vice President of BMR and Equity Portfolio Manager of Fox, has co-managed the Portfolio since 2006.

For important information about purchase and sale of shares, taxes and financial intermediary compensation, please turn to “Important Information Regarding Fund Shares” on page 30 of this Prospectus .

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Prospectus dated May 1, 2012

Eaton Vance Special Equities Fund

Investment Objective

The Fund’s investment objective is to provide growth of capital.

Fees and Expenses of the Fund

This table describes the fees and expenses that you may pay if you buy and hold shares of the Fund.   You may qualify for a reduced sales charge if you invest, or agree to invest over a 13-month period, at least $50,000 in Eaton Vance Funds.  More information about these and other discounts is available from your financial intermediary and in Sales Charges beginning on page 44 of this Prospectus and page 25 of the Fund’s Statement of Additional Information.

Example.  This Example is intended to help you compare the cost of investing in the Fund with the cost of investing in other mutual funds.  The Example assumes that you invest $10,000 in the Fund for the time periods indicated and then redeem all of your shares at the end of those periods.  The Example also assumes that your investment has a 5% return each year and that the operating expenses remain the same.  Although your actual costs may be higher or lower, based on these assumptions your costs would be:

Management

Investment Adviser.  Boston Management and Research (“BMR”).

Portfolio Manager.  The Fund is managed by Nancy B. Tooke, Vice President of BMR, who has managed the Fund and Special Equities Portfolio (the p ortfolio the Fund invest ed in prior to May 1, 2012) since 2006.

For important information about purchase and sale of shares, taxes and financial intermediary compensation, please turn to “Important Information Regarding Fund Shares” on page 30 of this Prospectus.

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Prospectus dated May 1, 2012

Important Information Regarding Fund Shares

Purchase and Sale of Fund Shares

You may purchase, redeem or exchange Fund shares on any business day, which is any day the New York Stock Exchange is open for business. Class B shares are only available for purchase upon exchange from another Eaton Vance fund or through reinvestment of distributions. You may purchase, redeem or exchange Fund shares either through your financial intermediary or directly from the Fund either by writing to Eaton Vance Funds, P.O. Box 9653, Providence, RI 02940-9653, or by calling 1-800-262-1122.  The minimum initial purchase or exchange into a Fund is $1,000 for each Class (with the exception of Class I) and $250,000 for Class I (waived in certain circumstances).  There is no minimum for subsequent investments.

Tax Information

Each Fund’s distributions are expected to be taxed as ordinary income and/or capital gains, unless you are exempt from taxation.

Payments to Broker-Dealers and Other Financial Intermediaries

If you purchase Fund shares through a broker-dealer or other financial intermediary (such as a bank) (collectively, “financial intermediaries”), a Fund, its principal underwriter and its affiliates may pay the financial intermediary for the sale of Fund shares and related services. These payments may create a conflict of interest by influencing the financial intermediary and your salesperson to recommend a Fund over another investment. Ask your salesperson or visit your financial intermediary’s website for more information.

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Prospectus dated May 1, 2012

Investment Objectives & Principal Policies and Risks

Each Fund and Portfolio is permitted to engage in the following investment practices to the extent set forth in Fund Summaries above or, in the case of certain Portfolios, in “ Further Information about the Portfolios .”  References to the “Fund” below are to each Fund and Portfolio, as applicable.

A statement of the investment objective and principal investment policies and risks of the Fund is set forth above in Fund Summaries .  As noted in Fund Summaries, each Fund (except Small-Cap Fund, Small-Cap Value Fund and Special Equities Fund) seeks to achieve its investment objective by investing in the Portfolio or Portfolios named therein.  Information also is included about other types of investments and practices that a Fund may engage in from time to time.

Foreign and Emerging Market Investments.  Investments in foreign issuers could be affected by factors not present in the United States, including expropriation, armed conflict, confiscatory taxation, lack of uniform accounting and auditing standards, less publicly available financial and other information, and potential difficulties in enforcing contractual obligations. Because foreign issuers may not be subject to uniform accounting, auditing and financial reporting standard practices and requirements and regulatory measures comparable to those in the United States, there may be less publicly available information about such foreign issuers.  Settlements of securities transactions in foreign countries are subject to risk of loss, may be delayed and are generally less frequent than in the United States, which could affect the liquidity of the Fund’s assets.

As an alternative to holding foreign-traded investments, the Fund may invest in dollar-denominated investments of foreign companies that trade on U.S. exchanges or in the U.S. over-the-counter market (including depositary receipts that evidence ownership in underlying foreign investments); unless otherwise stated in Fund Summaries, such investments are not subject to any stated limitation on investing in foreign investments.

The foregoing risks of foreign investing can be more significant in less developed countries characterized as emerging market countries, which may offer higher potential for gains and losses than investments in the developed markets of the world. Political and economic structures in emerging market countries generally lack the social, political and economic stability of developed countries, which may affect the value of the Fund’s investments in these countries and also the ability of the Fund to access markets in such countries. Governmental actions can have a significant effect on the economic conditions in emerging market countries, which also may adversely affect the value and liquidity of the Fund’s investments. The laws of emerging market countries relating to the limited liability of corporate shareholders, fiduciary duties of officers and directors, and bankruptcy of state enterprises are generally less well developed than or different from such laws in the United States. It may be more difficult to obtain a judgment in the courts of these countries than it is in the United States. Disruptions due to work stoppages and trading improprieties in foreign securities markets have caused such markets to close. If extended closings were to occur in stock markets where the Fund is heavily invested, the Fund’s ability to redeem Fund shares could become impaired. In such circumstances, the Fund may have to sell more liquid securities than it would otherwise choose to sell.  Emerging market securities are also subject to speculative trading, which contributes to their volatility.

Foreign Currencies.  The value of foreign assets and currencies as measured in U.S. dollars may be affected favorably or unfavorably by changes in foreign currency rates and exchange control regulations, application of foreign tax laws (including withholding tax), governmental administration of economic or monetary policies (in this country or abroad), and relations between nations and trading.  Foreign currencies also are subject to settlement, custodial and other operational risks. Currency exchange rates can be affected unpredictably by intervention by U.S. or foreign governments or central banks, or the failure to intervene, or by currency controls or political developments in the United States or abroad.  Costs are incurred in connection with conversions between currencies.  The Fund may engage in spot transactions and forward foreign currency exchange contracts, purchase and sell options on currencies and purchase and sell currency futures contracts and related options thereon (collectively, “Currency Instruments”) to seek to hedge against the decline in the value of currencies in which its portfolio holdings are denominated against the U.S. dollar .  Use of Currency Instruments may involve substantial currency risk and may also involve counterparty, leverage or liquidity risk.

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Prospectus dated May 1, 2012

Derivatives.  The Fund may enter into derivatives transactions with respect to any security or other instrument in which it is permitted to invest or any related security, instrument, index or economic indicator (“reference instruments”). The Fund may engage in derivative transactions to seek return, to hedge against fluctuations in securities prices, interest rates or currency exchange rates, or as a substitute for the purchase or sale of securities or currencies.  Derivatives are financial instruments the value of which is derived from the underlying reference instrument. Derivatives transactions can involve substantial risk.  Derivatives typically allow the Fund to increase or decrease the level of risk to which the Fund is exposed more quickly and efficiently than transactions in other types of instruments.  The Fund incurs costs in connection with opening and closing derivatives positions.  The Fund may engage in the derivative transactions set forth below, as well as in other derivative transactions with substantially similar characteristics and risks.

Certain derivative transactions may give rise to a form of leverage.  The Fund is required to segregate or “earmark” liquid assets or otherwise cover the Fund’s obligation created by a transaction that may give rise to leverage.  The use of leverage may cause the Fund to liquidate portfolio positions when it may not be advantageous to do so to satisfy its obligations or to meet segregation requirements.  Leverage may cause the Fund to be more volatile than if it had not been leveraged, as certain types of leverage may exaggerate the effect of any increase or decrease in the value of the Fund’s portfolio securities.  The loss on leverage transactions may substantially exceed the initial investment.

The use of derivatives can lead to losses because of adverse movements in the price or value of the asset, index, rate or instrument underlying a derivative, due to failure of a counterparty or due to tax or regulatory constraints. Derivatives risk may be more significant when derivatives are used to enhance return or as a substitute for a cash investment position , rather than solely to hedge the risk of a position held by the Fund.  When derivatives are used to gain or limit exposure to a particular market or market segment, their performance may not correlate as expected to the performance of such market thereby causing the Fund to fail to achieve its original purpose for using such derivatives. A decision as to whether, when and how to use derivatives involves the exercise of specialized skill and judgment, and even a well-conceived transaction may be unsuccessful to some degree because of market behavior or unexpected events.  Derivative instruments may be difficult to value, may be illiquid, and may be subject to wide swings in valuation caused by changes in the value of the underlying instrument.  If a derivative’s counterparty is unable to honor its commitments, the value of Fund shares may decline and the Fund could experience delays in the return of collateral or other assets held by the counterparty.  The loss on derivative transactions may substantially exceed the initial investment.

Options on Securities, Indices and Currencies.  The Fund may engage in transactions in exchange - traded and over-the-counter (“OTC”) options.  There are several risks associated with transactions in options such as imperfect correlation, counterparty risk and an insufficient liquid secondary market for particular options.  By buying a put option, the Fund acquires a right to sell the underlying instrument at the exercise price, thus limiting the Fund's risk of loss through a decline in the market value of the instrument until the put option expires. The Fund will pay a premium to the seller of the option for the right to receive payments of cash to the extent that the value of the applicable instrument declines below the exercise price as of the option valuation date.  If the price of the instrument is above the exercise price of the option as of the option valuation date, the option expires worthless and the Fund will not be able to recover the option premium paid to the seller.  The Fund may purchase uncovered put options.  The Fund also has authority to write ( i.e., sell) put options. The Fund will receive a premium for writing a put option, which increases the Fund's return. In writing a put option, the Fund has the obligation to buy the underlying instrument at an agreed upon price if the price of such instrument decreases below the exercise price.  If the value of the instrument on the option expiration date is above the exercise price, the option will generally expire worthless and the Fund, as option seller, will have no obligation to the option holder.

A purchased call option gives the Fund the right to buy, and obligates the seller to sell, the underlying instrument at the exercise price at any time during the option period.  The Fund also is authorized to write ( i.e., sell) call options on instruments in which it may invest and to enter into closing purchase transactions with respect to such options.  A covered call option is an option in which the Fund, in return for a premium, gives another party a right to buy specified instruments owned by the Fund at a specified future date and price set at the time of the contract. The Fund's ability to sell the instrument underlying a call option may be limited while the option is in effect unless the Fund enters into a closing purchase transaction. Uncovered call options have speculative characteristics and are riskier than covered call options because there is no underlying instrument held by the Fund that can act as a partial hedge.  As the writer of a covered call option or an index call option, the Fund forgoes, during the option’s life, the opportunity to profit from increases in the market value of the security or the index covering the call option above the sum of the option premium received and the exercise price of the call, but has retained the risk of loss, minus the option premium received, should the price of the underlying security or index decline.

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Prospectus dated May 1, 2012

OTC options involve risk that the issuer or counterparty will fail to perform its contractual obligations. Participants in these markets are typically not subject to the same credit evaluation and regulatory oversight as are members of “exchange - based” markets. By engaging in option transactions in these markets, the Fund may take a credit risk with regard to parties with which it trades and also may bear the risk of settlement default.

The Fund may also enter into swaptions, which are options giving the option owner the right (but not the obligation) to enter into or cancel a swap agreement at a future date.

Covered Calls and Equity Collars.   While the Fund generally will write only covered call options, it may sell the instrument underlying a call option prior to entering into a closing purchase transaction on up to 5% of the Fund’s net assets, provided that such sale will not occur more than three days prior to the option buy back. In an equity collar, the Fund simultaneously writes a call option and purchases a put option on the same instrument.

Futures Contracts.  The Fund may engage in transactions in futures contracts and options on futures contracts. Futures are standardized, exchange-traded contracts that obligate a purchaser to take delivery, and a seller to make delivery, of a specific amount of an asset at a specified future date at a specified price.  The Fund also is authorized to purchase or sell call and put options on futures contracts.  The primary risks associated with the use of futures contracts and options are imperfect correlation, liquidity, unanticipated market movement and counterparty risk.

Forward Foreign Currency Exchange Contracts.  Forward foreign currency exchange contracts are individually negotiated and privately traded so they are dependent upon the creditworthiness of the counterparty. They are subject to the risk of political and economic factors applicable to the countries issuing the underlying currencies. Furthermore, unlike trading in most other types of instruments, there is no systematic reporting of last sale information with respect to the foreign currencies underlying forwards. As a result, available information may not be complete.

Credit Derivatives.  Credit derivatives are instruments that are intended to provide a long or short exposure to a particular issuer, basket of issuers or economic indicator (such as interest rates).  Credit derivatives include credit default swaps, total return swaps, interest rate swaps, credit options, credit-linked notes, forward rate contracts and other instruments that have substantially similar characteristics and risks.  In a credit default swap, the buyer of credit protection (or seller of credit risk) agrees to pay the counterparty a fixed, periodic premium for a specified term.  In return, the counterparty agrees to pay a contingent payment to the buyer in the event of an agreed upon credit occurrence which is typically a default by the issuer of a debt obligation.  In a total return swap, the buyer receives a periodic return equal to the total economic return of a specified security, securities or index, for a specified period of time. In return, the buyer pays the counterparty a variable stream of payments, typically based upon short-term interest rates, possibly plus or minus an agreed upon spread. Interest rate swaps involve the exchange by the Fund with another party of their respective commitments to pay or receive interest, e.g., an exchange of fixed rate payments for floating rate payments.  Credit options are options whereby the purchaser has the right, but not the obligation, to enter into a transaction involving either an asset with inherent credit risk or a credit derivative, at terms specified at the inception of the option.  Credit linked notes are obligations between two or more parties where the payment of principal and/or interest is based on the performance of some obligation, basket of obligations, index or economic indicator (a “reference instrument”). Under forward rate agreements, the buyer locks in an interest rate at a future settlement date. If the interest rate on the settlement date exceeds the lock rate, the buyer pays the seller the difference between the two rates. If the lock rate exceeds the interest rate on the settlement date, the seller pays the buyer the difference between the two rates.  The primary risks associated with credit derivatives are imperfect correlation, unanticipated market movement, counterparty risk and liquidity risk.

Equity Swaps.  Equity swaps involve the exchange by the Fund with another party of their respective returns as calculated on a notional amount of an equity index (such as the S&P 500 Index), basket of equity securities, or individual equity security.  The success of swap agreements is dependent on the investment adviser’s ability to predict correctly whether certain types of investments are likely to produce greater returns than other investments. Other risks include liquidity and counterparty risk.

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Prospectus dated May 1, 2012

Short Sales.  The Fund may engage in covered short sales (on individual securities held or on an index or basket of securities whose constituents are held in whole or in part or for which liquid assets have been segregated).  A short sale on an individual security typically involves the sale of a security that is borrowed from a broker or other institution to complete the sale. Short sales expose the seller to the risk that it will be required to acquire securities to replace the borrowed securities (also known as “covering” the short position) at a time when the securities sold short have appreciated in value, thus resulting in a loss. When making a short sale, the Fund must segregate liquid assets equal to (or otherwise cover) its obligations under the short sale.  The seller of a short position generally realizes a profit on the transaction if the price it receives on the short sale exceeds the cost of closing out the position by purchasing securities in the market, but generally realizes a loss if the cost of closing out the short position exceeds the proceeds of the short sale.

Real Estate Investment Trusts.  Real estate investment trusts (“REITs”) are subject to the special risks associated with real estate.  Securities of companies in the real estate industry are sensitive to factors such as changes in real estate values, property taxes, interest rates, cash flow of underlying real estate assets, occupancy rates, government regulations affecting zoning, land use, and rents, and the management skill and creditworthiness of the issuer.  Companies in the real estate industry may also be subject to liabilities under environmental and hazardous waste laws, among others.  Changes in underlying real estate values may have an exaggerated effect to the extent that REITs concentrate investments in particular geographic regions or property types.

Credit Quality.  Rating agencies are private services that provide ratings of the credit quality of certain loans and other income securities.  In evaluating creditworthiness, the investment adviser considers ratings assigned by rating agencies and generally performs additional credit and investment analysis .  Credit ratings issued by rating agencies are based on a number of factors including, but not limited to, the issuer’s financial condition and the rating agency’s credit analysis, if applicable, at the time of rating.  The ratings assigned are not absolute standards of credit quality and do not evaluate market risks or necessarily reflect the issuer’s current financial condition. An issuer’s current financial condition may be better or worse than the current rating indicates. A credit rating may have a modifier (such as plus, minus or a numerical modifier) to denote its relative status within the rating. The presence of a modifier does not change the security's credit rating (meaning that BBB- and Baa3 are within the investment grade rating) for purposes of the Fund's investment limitations.

Lower Rated Securities.  Investments in obligations rated below investment grade and comparable unrated securities (“junk bonds”) have speculative characteristics because of the credit risk associated with their issuers.  Changes in economic conditions or other circumstances typically have a greater effect on the ability of issuers of lower rated investments to make principal and interest payments than they do on issuers of higher rated investments.  An economic downturn generally leads to a higher non-payment rate, and a lower rated investment may lose significant value before a default occurs.  Lower rated investments generally are subject to greater price volatility and illiquidity than higher rated investments.

U.S. Treasury and Government Agency Securities .   U.S. Treasury securities ( “ Treasury Securities ” ) include U.S. Treasury obligations that differ in their interest rates, maturities and times of issuance.  Agency Securities include obligations issued or guaranteed by U.S. Government agencies or instrumentalities and government-sponsored enterprises.  Agency Securities may be guaranteed by the U.S. Government or they may be backed by the right of the issuer to borrow from the U.S. Treasury, the discretionary authority of the U.S. Government to purchase the obligations, or the credit of the agency or instrumentality.  While U.S. Government agencies may be chartered or sponsored by Acts of Congress, their securities are not issued and may not be guaranteed by the U.S. Treasury.  To the extent that the Fund invests in securities of government-sponsored enterprises, the Fund will be subject to the risks unique to such entities.  Government-sponsored enterprises, such as the Federal Home Loan Mortgage Corporation (“Freddie Mac”), the Federal National Mortgage Association (“Fannie Mae”), the Federal Home Loan Banks (“FHLBs”), the Private Export Funding Corporation (“PEFCO”), the Federal Deposit Insurance Corporation (“FDIC”), the Federal Farm Credit Banks (“FFCB”) and the Tennessee Valley Authority (“TVA”), although chartered or sponsored by Congress, are not funded by congressional appropriations and the debt and mortgage-backed securities issued by them are neither guaranteed nor issued by the U.S. Government.  The U.S. Government has provided financial support to Fannie Mae and Freddie Mac in the past, but there can be no assurance that it will support these or other government-sponsored enterprises in the future.  Treasury Securities and Agency Securities also include any security or agreement collateralized or otherwise secured by Treasury Securities or Agency Securities, respectively.  As a result of their high credit quality and market liquidity, U.S. Government securities generally provide a lower current return than obligations of other issuers.

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Prospectus dated May 1, 2012

Asset-Backed Securities.  Asset-backed securities represent interests in a pool of assets, such as home equity loans, commercial mortgage-backed securities, automobile receivables or credit card receivables.  Unscheduled prepayments of asset-backed securities may result in a loss of income if the proceeds are invested in lower-yielding securities.  In addition, issuers of asset-backed securities may have limited ability to enforce the security interest in the underlying assets, and credit enhancements (if any) may be inadequate in the event of default.   Asset-backed securities may experience losses on the underlying assets as a result of certain rights provided to consumer debtors under federal and state law.  The value of asset-backed securities may be affected by the factors described above and other factors, such as the availability of information concerning the pool and its structure, the creditworthiness of the servicing agent for the pool, the originator of the underlying assets or the entities providing credit enhancements and the ability of the servicer to service the underlying collateral.  The value of asset-backed securities representing interests in a pool of utilities receivables may be adversely affected by changes in government regulations.  Under certain market conditions, asset-backed securities may be less liquid and may be difficult to value.

Commercial Mortgage-Backed Securities.  Commercial mortgage-backed securities (“CMBS”) include securities that reflect an interest in, and are secured by, mortgage loans on commercial real property. CMBS are subject to the risks described under “Asset-Backed Securities” above. CMBS also are subject to many of the risks of investing in the real estate securing the underlying mortgage loans. These risks reflect the effects of local and other economic conditions on real estate markets, the ability of tenants to make loan payments, and the ability of a property to attract and retain tenants. CMBS may be less liquid and exhibit a greater price volatility than other types of mortgage- or asset-backed securities.

The commercial mortgage loans that underlie CMBS have certain distinct risk characteristics. Commercial mortgage loans generally lack standardized terms, which may complicate their structure, tend to have shorter maturities than residential mortgage loans and may not be fully amortizing. Commercial properties themselves tend to be unique and are more difficult to value than single-family residential properties. In addition, commercial properties, particularly industrial and warehouse properties, are subject to environmental risks and the burdens and costs of compliance with environmental laws and regulations.

Mortgage-Backed Securities (“MBS”).  MBS represent participation interests in pools of adjustable and fixed-rate mortgage loans. MBS may be issued by the U.S. Government (or one of its agencies or instrumentalities) or privately issued but collateralized by mortgages that are insured, guaranteed or otherwise backed by the U.S. Government, or its agencies or instrumentalities. Adjustable rate mortgages are mortgages whose interest rates are periodically reset when market rates change. Unlike conventional debt obligations, MBS provide monthly payments derived from the monthly interest and principal payments (including any prepayments) made by the individual borrowers on the pooled mortgage loans. MBS that include loans that have had a history of refinancing opportunities are referred to as “seasoned MBS”. MBS that are not seasoned MBS are referred to as generic MBS. Seasoned MBS tend to have a higher collateral to debt ratio than other MBS because a greater percentage of the underlying debt has been repaid and the collateral property may have appreciated in value. MBS may be “premium bonds” acquired at prices that exceed their par or principal value.

The mortgage loans underlying MBS are generally subject to a greater rate of principal prepayments in a declining interest rate environment and to a lesser rate of principal prepayments in an increasing interest rate environment, although investment in seasoned MBS can mitigate this risk. Under certain interest and prepayment rate scenarios, the Fund may fail to recover the full amount of its investment in MBS, notwithstanding any direct or indirect governmental or agency guarantee. Because faster than expected prepayments must usually be invested in lower yielding securities, MBS are less effective than conventional bonds in “locking in” a specified interest rate. For premium bonds, prepayment risk may be enhanced. In a rising interest rate environment, a declining prepayment rate will extend the average life of many MBS. This possibility is often referred to as extension risk. Extending the average life of a mortgage-backed security increases the risk of depreciation due to future increases in market interest rates. MBS that are purchased at a premium generate current income that exceeds market rates for comparable investments, but tend to decrease in value as they mature. MBS include classes of collateralized mortgage obligations (“CMOs”), including fixed- or floating-rate tranches, and various other MBS. In choosing among CMO classes, the investment adviser will evaluate the total income potential of each class and other factors. CMOs are subject to the same types of risks affecting MBS as described above. Mortgage dollar rolls involve the Fund selling MBS for delivery in the current month with a simultaneous contract entered to repurchase substantially similar (same type, coupon and maturity) securities on a specified future date (a “mortgage roll”). During the roll period, the Fund foregoes principal and interest paid on the MBS.

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Eurodollar and Yankee Dollar Instruments.  The Fund may invest a portion of its assets in Eurodollar and Yankee Dollar instruments.  Eurodollar instruments are bonds that pay interest and principal in U.S. dollars held in banks outside the United States, primarily in Europe.  Eurodollar instruments are usually issued on behalf of multinational companies and foreign governments by large underwriting groups composed of banks and issuing houses from many countries.  Yankee Dollar instruments are U.S. dollar denominated bonds issued in the United States by foreign banks and corporations.  These investments involve risks that are different from investments in securities issued by U.S. issuers, and may carry the same risks as investing in foreign securities.

Repurchase Agreements.  A repurchase agreement is the purchase by the Fund of securities from a counterparty in exchange for cash that is coupled with an agreement to resell those securities to the counterparty at a specified date and price. Repurchase agreements which mature in more than seven days will be treated as illiquid. When a repurchase agreement is entered into, the Fund typically receives securities with a value that equals or exceeds the repurchase price, including any accrued interest earned on the agreement. The value of such securities will be marked to market daily, and cash or additional securities will be exchanged between the parties as needed. Except in the case of a repurchase agreement entered into to settle a short sale, the value of the securities delivered to the Fund will be at least equal to the repurchase price during the term of the repurchase agreement. The terms of a repurchase agreement entered into to settle a short sale may provide that the cash purchase price paid by the Fund is more than the value of purchased securities that effectively collateralize the repurchase price payable by the counterparty. Since in such a transaction the Fund normally will have used the purchased securities to settle the short sale, the Fund will segregate liquid assets equal to the marked to market value of the purchased securities that it is obligated to return to the counterparty under the repurchase agreement. The Fund’s investments in repurchase agreements are subject to the requirements of the Investment Company Act of 1940, as amended.

Inflation-Indexed Bonds.  Inflation-indexed bonds (other than municipal inflation-indexed bonds and certain corporate inflation-indexed bonds, which are more fully described below) are fixed-income securities whose principal value is periodically adjusted according to the rate of inflation. If the index measuring inflation falls, the principal value of inflation-indexed bonds (other than municipal inflation-indexed bonds and certain corporate inflation-indexed bonds) will be adjusted downward, and consequently the interest payable on these securities (calculated with respect to a smaller principal amount) will be reduced. Repayment of the original bond principal upon maturity (as adjusted for inflation) is guaranteed by the U.S. Treasury in the case of U.S. Treasury inflation-indexed bonds. For bonds that do not provide a similar guarantee, the adjusted principal value of the bond repaid at maturity may be less than the original principal.

Municipal Obligations.  Municipal obligations include bonds, notes and commercial paper issued by municipalities and agencies and authorities established by those municipalities. Municipal debt may be used for a wide variety of public and private purposes, and the interest thereon may or may not be subject to U.S. federal income tax.  Municipal obligations also include municipal leases and participations in municipal leases.   An issuer’s obligation under such leases is often subject to the appropriation by a legislative body, on an annual or other basis, of funds for the payment of the obligations.   Certain municipal obligations may be purchased on a “when-issued” basis, which means that payment and delivery occur on a future settlement date. The price and yield of such securities are generally fixed on the date of commitment to purchase. The values of zero coupon bonds and principal only strips are subject to greater fluctuation in response to changes in market interest rates than bonds which pay interest currently.  The Fund accrues income on these investments and is required to distribute that income each year.  The Fund may be required to sell securities to obtain cash needed for income distributions.

Smaller Companies.  Securities of smaller, less seasoned companies, which may include legally restricted securities, are generally subject to greater price fluctuations, limited liquidity, higher transaction costs and higher investment risk.  Because of the absence of any public trading market for some of these investments (such as those which are legally restricted) it may take longer to liquidate these positions at fair value than would be the case for publicly traded securities.

Pooled Investment Vehicles.  Subject to applicable limitations, the Fund may invest in pooled investment vehicles, including open- and closed-end investment companies affiliated or unaffiliated with the investment adviser, and exchange-traded funds. The market for common shares of closed-end investment companies and exchange-traded funds , which are generally traded on an exchange, is affected by the demand for those securities, regardless of the value of the fund’s underlying portfolio assets.  The Fund will indirectly bear its proportionate share of any management fees and expenses paid by unaffiliated and certain affiliated pooled investment vehicles in which it invests, except that management fees of affiliated funds may be waived.  To the extent they exceed 0.01%, the costs associated with such investments will be reflected in Acquired Fund Fees and Expenses in the Annual Fund Operating Expenses in Fund Summaries.

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Illiquid Securities.  The Fund may not invest more than 15% of its net assets in illiquid securities, which may be difficult to value properly and may involve greater risks than liquid securities.  Illiquid securities include those legally restricted as to resale (such as those issued in private placements), and may include commercial paper issued pursuant to Section 4(2) of the Securities Act of 1933, as amended, and securities eligible for resale pursuant to Rule 144A thereunder.  Certain Section 4(2) and Rule 144A securities may be treated as liquid securities if the investment adviser determines that such treatment is warranted.  Even if determined to be liquid, holdings of these securities may increase the level of Fund illiquidity if eligible buyers become uninterested in purchasing them.

Investing in the Portfolios.  Because the advisory fee paid by each Portfolio differs, a Fund that invests in more than one Portfolio has the potential for a conflict of interest with the investment adviser in that assets could be allocated to a Portfolio for the reason that it has a higher advisory fee. However, in making allocation determinations, the portfolio manager is expressly forbidden from considering the fee payable by the Portfolios, and must make determinations only on the basis of the best interests of the Fund and its shareholders.  The Fund may be one of several investors in a Portfolio.  Actions taken by other investors may adversely affect the Fund and its shareholders.

Portfolio Turnover.  The annual portfolio turnover rate of the Fund may exceed 100%.  A mutual fund with a high turnover rate (100% or more) may generate more capital gains and pay more commissions (which may reduce return) than a fund with a lower rate.  Capital gains distributions will be made to shareholders if offsetting capital loss carryforwards do not exist.

Securities Lending. The Fund may seek to earn income by lending portfolio securities to broker-dealers or other institutional borrowers.  As with other extensions of credit, there are risks of delay in recovery or even loss of rights in the securities loaned if the borrower of the securities fails financially.  Loans will only be made to firms that have been approved by the investment adviser and the investment adviser or the securities lending agent will periodically monitor the financial condition of such organizations while any loans are outstanding.  In addition, loans will only be made when the investment adviser believes the expected returns, net of expenses, justify the attendant risk.  Securities loans currently are required to be secured continuously by collateral in cash, cash equivalents (such as money market instruments) or other liquid securities held by the custodian and maintained in an amount at least equal to the market value of the securities loaned. Distributions of any income realized from securities loans will be taxable as ordinary income.  The Fund may lend up to one-third of the value of its total assets (including borrowings) or such other amount as is permitted under relevant law.

Borrowing.  The Fund is authorized to borrow in accordance with applicable regulations, but currently intends to borrow only for temporary purposes (such as to satisfy redemption requests, to remain fully invested in anticipation of expected cash inflows and to settle transactions).  The Fund will not purchase additional investment securities while outstanding borrowings exceed 5% of the value of its total assets.  

Cash and Cash Equivalents.  The Fund may invest in cash or cash equivalents, including high quality short-term instruments or an affiliated investment company that invests in such instruments.

General.  The Fund's investment objective may not be changed without shareholder approval. Certain other policies may be changed without shareholder approval. During unusual market conditions, the Fund may invest up to 100% of its assets in cash or cash equivalents temporarily, which may be inconsistent with its investment objective (s) and other policies. The Fund might not use all of the strategies and techniques or invest in all of the types of securities described in this Prospectus or the Statement of Additional Information.  While at times the Fund may use alternative investment strategies in an effort to limit its losses, it may choose not to do so.

The Fund’s 80% Policy will not be changed unless shareholders are given at least 60 days' advance written notice of the change and, for the purpose of such policy, net assets include any assets purchased with borrowings for investment purposes.

Small-Cap Fund's, Small-Cap Value Fund's and Special Equities Fund's investment policies include a provision allowing each Fund to invest (i) all of its investable assets in an open-end management investment company with substantially the same investment objective, policies and restrictions as that Fund; or (ii) in more than one open-end management investment company sponsored by Eaton Vance or its affiliates, provided any such companies have investment objectives, policies and restrictions that are consistent with those of that Fund.  Any such company or companies would be advised by the Fund’s investment adviser (or an affiliate) and the Fund would not pay directly any advisory fee with respect to the assets so invested. Small-Cap Fund, Small-Cap Value Fund and Special Equities Fund may initiate investments in one or more such investment companies at any time without shareholder approval.

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Prospectus dated May 1, 2012

Management and Organization

Management.  Each Portfolio’s , Small-Cap Fund’s , Small-Cap Value Fund’s and Special Equities Fund’s investment adviser is Boston Management and Research (“BMR”), a subsidiary of Eaton Vance Management (“Eaton Vance”), with offices at Two International Place Boston, MA 02110.  Eaton Vance has been managing assets since 1924 and managing mutual funds since 1931.  Eaton Vance and its affiliates currently manage over $195 billion on behalf of mutual funds, institutional clients and individuals.  Each investment adviser manages investments pursuant to an investment advisory agreement.  Each Fund (except Small-Cap Value Fund) has been allocated its pro rata share of the advisory fee paid by the Portfolio(s) in which it invests.  Information about advisory fees and portfolio managers is set forth below.  

Eaton Vance serves as the administrator of each Fund, providing each Fund with administrative services and related office facilities.  In return , Large-Cap Growth Fund, Small-Cap Fund and Small-Cap Value Fund are authorized to pay Eaton Vance a fee of 0.15% of average daily net assets.   Effective October 22, 2007, Balanced Fund is authorized to pay Eaton Vance an administrative fee of up to 0.10% of average daily net assets.  Eaton Vance has agreed to reduce such fee to the extent Balanced Fund’s combined advisory and administrative fees would otherwise exceed the amount of such fees under the fee schedules in place for the Fund and the Portfolios in which it invested as of October 15, 2007.  For the fiscal year ended December 31, 2011 , the administration fee of Balanced Fund was 0. 01 % of the Fund’s average daily net assets.  For the fiscal year ended December 31, 2011 , the administration fee paid by each of Large-Cap Core Research Fund, Large-Cap Growth Fund, Small-Cap Fund and Small-Cap Value Fund equaled 0.15% of average daily net assets.  Eaton Vance does not currently receive a fee for serving as administrator of Dividend Builder Fund, Large-Cap Value and Special Equities Fund.  

Each Fund’s semiannual report provides information regarding the basis for the Trustees’ approval of the investment advisory agreement with regard to each Portfolio, Small-Cap Fund , Small-Cap Value Fund and Special Equities Fund.

Dividend Builder Portfolio.  Under its investment advisory agreement with Dividend Builder Portfolio, BMR is entitled to receive an advisory fee as follows:   

*

Effective June 14, 2004, BMR contractually agreed to reduce its advisory fee as stated above.  This contractual reduction cannot be terminated or modified without Trustee and shareholder approval.

For the fiscal year ended December 31, 2011 , the effective annual rate of advisory fee paid to BMR, based on average daily net assets of the Portfolio, was 0.63%.  

Judith A. Saryan (since March 1999) and Charles Gaffney (since August 2007) are the portfolio managers of Dividend Builder Portfolio.  Ms. Saryan manages other Eaton Vance portfolios, has been an Eaton Vance portfolio manager for more than five years and is a Vice President of Eaton Vance and BMR.  Mr. Gaffney has been a Vice President of Eaton Vance for more than five years, is a portfolio manager and Director of Equity Research.

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Prospectus dated May 1, 2012

Large-Cap Core Research Portfolio.  Under its investment advisory agreement with Large-Cap Core Research Portfolio, BMR receives a monthly advisory fee as follows:

For the fiscal year ended December 31, 2011 , the effective annual rate of advisory fee paid to BMR, based on average daily net assets of the Portfolio, was 0.65%.

Charles Gaffney has served as the portfolio manager of Large-Cap Core Research Portfolio and its predecessor fund since 2007 and is responsible for the day-to-day management of the Portfolio.  He has supervised the equity research analysts responsible for selection of portfolio securities since 2007.  Mr. Gaffney and the equity research analysts meet periodically to discuss investment policy and procedures and to provide investment research for the Portfolio.  Mr. Gaffney is Director of Equity Research, manages other Eaton Vance portfolios, has been an analyst at Eaton Vance for more than five years, and is a Vice President of Eaton Vance and BMR.  As portfolio manager, Mr. Gaffney coordinates the allocation of Portfolio assets among the market sectors, using the weightings of the S&P 500 Index as a benchmark.  The various equity research analysts are responsible for choosing the particular securities within their sectors or industries.  

Large -Cap Growth Portfolio.  Under its investment advisory agreement with Large -Cap Growth Portfolio, BMR receives a monthly advisory fee as follows:  

For the fiscal year ended December 31, 2011 , the effective annual rate of advisory fee paid to BMR, based on average daily net assets of the Portfolio, was 0.65%.

Large-Cap Growth Portfolio is managed by a team of portfolio managers led by Lewis R. Piantedosi.  Mr. Piantedosi has served as a portfolio manager of the Portfolio since it commenced operations in 2002 and manages other Eaton Vance portfolios.  He has been an Eaton Vance portfolio manager for more than five years and is a Vice President of Eaton Vance and BMR.  Yana S. Barton has been a member of the portfolio management team since December 2009.  Ms. Barton has managed other Eaton Vance portfolios since 2005.  Prior to becoming a portfolio manager, Ms. Barton was an equity research analyst.  She has been employed by Eaton Vance for more than five years and is a Vice President of Eaton Vance and BMR.

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Prospectus dated May 1, 2012

Large-Cap Value Portfolio.  Under its investment advisory agreement with Large-Cap Value Portfolio, BMR receives a monthly advisory fee as follows:  

*

Pursuant to fee reduction agreements dated March 27, 2006, April 27, 2009 and April 26, 2010, BMR contractually agreed to reduce its advisory fee as stated above.  These contractual reductions cannot be terminated or modified without Trustee and shareholder approval.

For the fiscal year ended December 31, 2011 , the effective annual rate of advisory fee paid to BMR, based on average daily net assets of the Portfolio, was 0.58%.

Large-Cap Value Portfolio is managed by a team of portfolio managers led by Michael R. Mach.  Mr. Mach has served as a portfolio manager of the Portfolio since operations commenced in 2000 and manages other Eaton Vance portfolios.  He has been an Eaton Vance portfolio manager for more than five years and is a Vice President of Eaton Vance and BMR.  The other members of the portfolio management team are Matthew F. Beaudry, John D. Crowley and Stephen J. Kaszynski (all since December 2009).  Mr. Beaudry has been managing other Eaton Vance portfolios for more than five years and is a Vice President of Eaton Vance and BMR.  Mr. Crowley has been managing other Eaton Vance portfolios for more than five years and is a Vice President of Eaton Vance and BMR.  Mr. Kaszynski has been managing other Eaton Vance portfolios since September 2008.  Prior to joining Eaton Vance in 2008, he was Managing Director and Head of U.S. Equities for Credit Suisse Asset Management, as well as the lead portfolio manager of a Credit Suisse fund (January 2004 - January 2007).  He is a Vice President of Eaton Vance and BMR.

Small-Cap Fund.  Prior to May 1, 2012, the Fund invested its assets in Small-Cap Portfolio, a separate registered investment company with the same objective and policies as the Fund.  Under its investment advisory agreement with Small-Cap Fund, BMR receives a monthly advisory fee as follows:

For the fiscal year ended December 31, 2011 , the effective annual rate of advisory fee paid to BMR, based on average daily net assets of the Portfolio, was 0.75%.

Nancy B. Tooke is the portfolio manager of Small-Cap Fund (of the Fund and Small-Cap Portfolio since February 2006) and manages other Eaton Vance portfolios.  She has been employed by Eaton Vance for more than five years and is a Vice President of Eaton Vance and BMR.

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Prospectus dated May 1, 2012

Small-Cap Value Fund.  Under Small-Cap Value Fund’s investment advisory agreement, BMR receives a monthly advisory fee as follows:  

Prior to March 19, 2012 , BMR delegated the investment management of the Portfolio to Fox , a wholly -owned affiliate of Eaton Vance Corp. pursuant to a sub-advisory agreement.  Fox is located at 1040 Broad Street, Suite 203, Shrewsbury , NJ  07702.  BMR paid Fox a portion of the advisory fee for sub-advisory services provided to the Portfolio.  For the fiscal year ended December 31, 2011 , the effective annual rate of investment advisory fee paid to BMR , based on average daily net assets of the Portfolio was 1.00%.  

Small-Cap Value Fund is managed by a team of three portfolio managers led by Gregory R. Greene.  Mr. Greene has served as a portfolio manager since March 2006.  Mr. Greene is a Vice President of BMR since March 2012, Co- Director of Fox and is a member of the Fox Investment Committee, manages other investment portfolios and has been employed by Fox for more than five years.  Other members of the team are J. Bradley Ohlmuller and Robert J. Milmore , who both manage other Eaton Vance portfolios.  Mr. Ohlmuller has served as a portfolio manager since November 2005, is a Vice President of BMR since March 2012, an Equity Portfolio Manager of Fox and member of the Fox Investment Committee and has been employed by Fox for more than five years.  Mr. Milmore has served as a portfolio manager since September 2006, is a Vice President of BMR since March 2012, an Equity Portfolio Manager of Fox and has been a member of its Research Group since November 2005 and a member of the Fox Investment Committee since October 2006 and has been employed by Fox for more than five years.    

Special Equities Fund.  Prior to May 1, 2012, the Fund invested its assets in Special Equities Portfolio, a separate registered investment company with the same objective and policies as the Fund.  Under its investment advisory agreement with Special Equities Fund , BMR receives a monthly advisory fee as follows:

For the fiscal year ended December 31, 2011 , the effective annual rate of advisory fee paid to BMR, based on average daily net assets of the Portfolio, was 0.625%.  

Nancy B. Tooke is the portfolio manager of Special Equities Fund (of the Fund and Special Equities Portfolio since February 2006) and manages other Eaton Vance portfolios.  She has been employed by Eaton Vance for more than five years and is a Vice President of Eaton Vance and BMR.   

The Statement of Additional Information provides additional information about each portfolio manager’s compensation, other accounts managed by each portfolio manager, and each portfolio manager’s ownership of Fund shares with respect to which that portfolio manager has management responsibilities.

Eaton Vance also serves as the sub-transfer agent for each Fund.  For the sub-transfer agency services it provides, Eaton Vance receives an aggregate fee based upon the actual expenses it incurs for its sub-transfer agency services.  This fee is paid to Eaton Vance by a Fund ’ s transfer agent from the fees the transfer agent receives from the Eaton Vance funds.

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Organization .   Each Fund , except Eaton Vance Large-Cap Core Research Fund, is a series of Eaton Vance Special Investment Trust, and Eaton Vance Large-Cap Core Research Fund is a series of Eaton Vance Mutual Funds Trust. Eaton Vance Special Investment Trust and Eaton Vance Mutual Funds Trust are Massachusetts business trusts.   Each Fund offers multiple classes of shares.  Each Class represents a pro rata interest in a Fund but is subject to different expenses and rights.  The Funds do not hold annual shareholder meetings but may hold special meetings for matters that require shareholder approval (such as electing or removing trustees, approving management or advisory contracts or changing investment policies that may only be changed with shareholder approval).

As a Portfolio investor, a Fund may be asked to vote on certain Portfolio matters (such as changes in certain Portfolio investment restrictions).  When necessary, a Fund will hold a meeting of its shareholders to consider Portfolio matters and then vote its interest in the Portfolio in proportion to the votes cast by its shareholders.  There may be other Portfolio investors in addition to a Fund.  Purchase and redemption activities by other Portfolio investors may impact the management of a Portfolio and its ability to achieve its objective.  Each Fund can withdraw its Portfolio investment at any time without shareholder approval.

Because the Funds use this combined Prospectus, a Fund could be held liable for a misstatement or omission made about another Fund.