Federated Investors
World-Class Investment Manager

Federated Government Ultrashort Duration Fund

A Portfolio of Federated Institutional Trust

PROSPECTUS

September 30, 2009

INSTITUTIONAL SERVICE SHARES

A mutual fund seeking current income by investing primarily in U.S. government securities and U.S. government agency securities.

As with all mutual funds, the Securities and Exchange Commission (SEC) has not approved or disapproved these securities or passed upon the adequacy of this Prospectus. Any representation to the contrary is a criminal offense.

Not FDIC Insured * May Lose Value * No Bank Guarantee

CONTENTS

Risk/Return Summary 1

What are the Fund’s Fees and Expenses? 5

What are the Fund’s Investment Strategies? 6

What are the Principal Securities in Which the Fund Invests? 8

What are the Specific Risks of Investing in the Fund? 11

What Do Shares Cost? 13

How is the Fund Sold? 15

Payments to Financial Intermediaries 17

How to Purchase Shares 18

How to Redeem and Exchange Shares 20

Account and Share Information 24

Who Manages the Fund? 26

Legal Proceedings 28

Financial Information 29

Appendix A: Hypothetical Investment and Expense Information 31

Risk/Return Summary

WHAT IS THE FUND ’ S INVESTMENT OBJECTIVE?

The Fund’s investment objective is current income. While there is no assurance that the Fund will achieve its investment objective, it endeavors to do so by following the strategies and policies described in this Prospectus.

WHAT ARE THE FUND ’ S MAIN INVESTMENT STRATEGIES?

The Fund’s overall strategy is to invest in a portfolio of U.S. government securities and U.S. government agency securities (including mortgage-backed securities issued or guaranteed by U.S. government-sponsored entities (GSEs)) with an overall dollar-weighted average duration of one year or less. Duration measures the price sensitivity of a fixed-income security to changes in interest rates. Within the one-year duration constraint, the Adviser will seek to increase the Fund’s current income by lengthening or shortening portfolio duration based on its interest rate outlook.

The Fund implements this strategy by dividing its portfolio into two major components. The Fund invests one component in U.S. government securities (including repurchase agreements collateralized by U.S. government securities and U.S. government agency securities) that are eligible for purchase by money market funds. The Fund invests the other component in mortgage-backed securities issued or guaranteed by GSEs. The Fund uses mortgage-backed securities to increase the income provided by the portfolio and to extend the portfolio to the targeted duration. Within each component of the portfolio, the Adviser makes decisions of which securities to buy and sell based on the relative yield and risks of available securities with comparable durations. The Fund evaluates its investment strategy by comparing the performance and composition of the Fund’s portfolio against the performance and composition of an index composed of U.S. Treasury bills with maturities of six months.

The Fund also intends to qualify as a permissible investment for federal credit unions and savings associations, and as an appropriate direct investment for national banks, and will limit its investments accordingly.

The Fund intends to invest in the securities of U.S. government-sponsored entities (GSEs), including GSE securities that are not backed by the full faith and credit of the United States government, such as those issued by the Federal Home Loan Mortgage Corporation, the Federal National Mortgage Association and the Federal Home Loan Bank System. These entities are, however, supported through federal subsidies, loans or other benefits. The Fund may also invest in GSE securities that are supported by the full faith and credit of the U.S. government, such as those issued by the Government National Mortgage Association. Finally, the Fund may invest in a few GSE securities that have no explicit financial support, but which are regarded as having implied support because the federal government sponsors their activities. Such securities include those issued by the Farm Credit System and the Financing Corporation.

WHAT ARE THE MAIN RISKS OF INVESTING IN THE FUND?

All mutual funds take investment risks. Therefore, it is possible to lose money by investing in the Fund. The primary factors that may reduce the Fund’s returns include:

• Interest Rate Risk. Prices of fixed-income securities generally fall when interest rates rise. Interest rate changes have a greater effect on the price of fixed-income securities with longer durations.

• Issuer Credit Risk. Credit risk is the possibility that an issuer will default on a security by failing to pay interest or principal when due. If an issuer defaults, a Fund will lose money. Money market funds try to minimize this risk by purchasing higher quality securities.

• Counterparty Credit Risk. Credit risk includes the possibility that a party to a transaction involving a Fund will fail to meet its obligations. This could cause a Fund to lose the benefit of the transaction or prevent a Fund from selling or buying other securities to implement its investment strategy.

• Prepayment Risk. When homeowners prepay their mortgages in response to lower interest rates, the Fund will be required to reinvest the proceeds at the lower interest rates available. Also, when interest rates fall, the price of mortgage-backed securities may not rise to as great an extent as that of other fixed-income securities.

The Shares offered by this Prospectus are not deposits or obligations of any bank, are not endorsed or guaranteed by any bank and are not insured or guaranteed by the U.S. government, the Federal Deposit Insurance Corporation, the Federal Reserve Board, or any other government agency.

Risk/Return Bar Chart and Table

The performance information shown below will help you analyze the Fund’s investment risks in light of its historical returns. The bar chart shows the variability of the Fund’s Institutional Service Shares total returns on a calendar year-by-year basis. The Average Annual Total Return table shows returns averaged over the stated periods, and includes comparative performance information. The   Fund ’ s performance will fluctuate, and past performance (before and after taxes) is no guarantee of future results.

The Fund ’ s Institutional Service Shares are sold without a sales charge (load). The total returns shown in the bar chart above are based upon net asset value.

The Fund ’ s Institutional Service Shares total return for the six-month period from January 1, 2009 to June   30 ,   2009 was 1. 30 %.

Within the period s shown in the bar chart, the Fund ’ s Institutional Service Shares highest quarterly return was   2.16% (quarter ended December 31, 2000). Its lowest quarterly return was (0.22)% (quarter ended June   30, 2004).

Average Annual Total Return Table

Return Before Taxes is shown. In addition, Return After Taxes is shown for the Fund’s Institutional Service Shares to illustrate the effect of federal taxes on Fund returns. Actual after-tax returns depend on each investor ’ s personal tax situation, and are likely to differ from those shown. The table also shows returns for Merrill Lynch
6-Month Treasury Bill Index (ML6MT), a broad-based market index. The ML6MT tracks six-month U.S. government securities. Index returns do not reflect taxes, sales charges, expenses or other fees that the SEC requires to be reflected in the Fund’s performance. The index is unmanaged, and it is not possible to invest directly in an index.

(For the Period Ended December 31, 2008)

1 The Fund ’ s Institutional Service Shares start of performance date was September 30, 1999.

2 After-tax returns are calculated using a standard set of assumptions. The stated returns assume the high est historical federal income and capital gains tax rates. Return After Taxes on Distributions assumes a continued investment in the Fund and shows the effect of taxes on Fund distributions. Return After Taxes on Distributions and Sale of Fund Shares assumes all Shares were redeemed at the end of each measure ment period, and shows the effect of any taxable gain (or offsetting loss) on redemption, as well as the effects of taxes on Fund distributions. These after-tax returns do not reflect the effect of any applicable state and local taxes. After-tax returns are not relevant to investors holding Shares through tax-deferred programs, such as IRA or 401(k) plans.

What are the Fund’s Fees and Expenses?

FEDERATED GOVERNMENT ULTRASHORT DURATION FUND

FEES AND EXPENSES

This table describes the fees and expenses that you may pay if you buy and hold Institutional Service Shares of the Fund.

EXAMPLE

This Example is intended to help you compare the cost of investing in the Fund’s Institutional Service Shares with the cost of investing in other mutual funds.

The Example assumes that you invest $10,000 in the Fund’s Institutional Service Shares 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 Fund’s Institutional Service Shares operating expenses are before waiver , reimbursement and reduction as shown in the table and remain the same. Although your actual costs and returns may be higher or lower, based on these assumptions your costs would be:

What are the Fund’s Investment Strategies?

The Fund is intended to provide returns consistent with investments in short-term securities issued or guaranteed by the U.S. government and U.S. government agencies. Most of the returns will consist of interest income. The Fund also intends to qualify as a permissible investment for federal credit unions and savings associations, and as an appropriate direct investment for national banks. The Fund will limit its investments accordingly. The Fund’s overall strategy is therefore to invest in a portfolio of U.S. government securities and U.S. government agency securities (including mortgage-backed securities issued or guaranteed by GSEs) with an overall dollar-weighted average duration of one year or less. Duration measures the price sensitivity of a fixed-income security to changes in interest rates. A description of the various types of U.S. government securities (including repurchase agreements) in which the Fund principally invests, other investment techniques used by the Fund, and their risks immediately follows this strategy section.

Within the one-year duration constraint, the Adviser will seek to increase the Fund’s current income by lengthening or shortening portfolio duration based on its interest rate outlook. The Adviser will typically lengthen the portfolio duration when it expects interest rates to decline. The Adviser will typically shorten the portfolio duration when it expects interest rates to increase.

The Fund implements this strategy by dividing its portfolio into two major components. The Fund invests one component in U.S. government securities and repurchase agreements that are eligible for purchase by money market funds. This component normally maintains a dollar-weighted average duration of less than three months. This component is composed principally of repurchase agreements for U.S. government securities, U.S. government securities with remaining maturities of 3 to 13 months, and longer-term U.S. government securities with adjustable interest rates. Most of the Fund’s repurchase agreements will be payable on the next business day (overnight repurchase agreements), but the Fund will also enter into repurchase agreements with terms of up to 12 months (term repurchase agreements).

The Fund invests the other component in mortgage-backed securities issued or guaranteed by GSEs. The Fund uses mortgage-backed securities to increase the income provided by the portfolio and to extend the portfolio to the targeted duration. This portion of the portfolio consists principally of floating-rate collateralized mortgage obligations and adjustable-rate mortgages, which are described following this section. These types of mortgage-backed securities tend to have shorter durations than other types of mortgage-backed securities. The Fund may also seek to increase its income and duration by investing in longer duration fixed-rate mortgage-backed securities and other fixed-rated U.S. government securities. The targeted portfolio duration will limit the amount of these securities held in the portfolio.

Within each component of the portfolio, the Adviser makes decisions of which securities to buy and sell based on the relative yield of available securities with comparable durations. The relative yield of a security is determined by comparing its yield to that of a U.S. Treasury security of similar duration. This difference is referred to as the “spread.” Under normal market conditions, agency securities will have a positive spread and mortgage-backed securities will have a larger spread than other agency securities. The positive spread results from a number of factors, including the fact that some agency securities are not backed by the full faith and credit of the United States and the prepayment risk of mortgage-backed securities.

Once the Adviser has determined the duration of the securities needed to achieve the portfolio’s targeted duration, all other factors being equal, the Fund will tend to hold securities offering the highest spreads. For mortgage-backed securities, the Adviser will also assess the available spreads relative to specific interest rate and prepayment risks of the securities. The Fund may also enter into term repurchase agreements when they offer higher returns than those expected for overnight repurchase agreements over the term or higher spreads than agency securities of comparable duration.

There is no assurance that the Adviser’s efforts to forecast market interest rates and assess the impact of changes in market interest rates and spreads in particular will be successful.

The Adviser evaluates the investment strategy by comparing the performance and composition of the Fund’s portfolio against the performance and composition of an index composed of U.S. Treasury bills with maturities of six months (the “Index”). Although there can be no assurance that the Fund’s total return will exceed the Index’s total return during any period, the Fund seeks to construct a portfolio that will perform favorably when compared to the Index over the long-term. In pursuing this strategy, the composition of the Fund’s portfolio will vary from the composition of the Index’s portfolio. The Fund’s portfolio may also include U.S. government agency securities (including mortgage-backed securities issued or guaranteed by GSEs) and individual securities not represented in the Index.

Because the Fund refers to U.S. government investments in its name, it will notify shareholders at least 60 days in advance of any change in its investment policies that would enable the Fund to invest, under normal circumstances, less than 80% of its assets in U.S. government investments.

What are the Principal Securities in Which the Fund Invests?

The following provides general information on the types of securities in which the fund principally invests. The fund may invest in other types of securities as a non-principal investment as described in the fund’s Statement of Additional Information (SAI).

FIXED-INCOME SECURITIES

Fixed-income securities pay interest, dividends or distributions at a specified rate. The rate may be a fixed percentage of the principal or may be adjusted periodically. In addition, the issuer of a fixed-income security must repay the principal amount of the security, normally within a specified time. Fixed-income securities provide more regular income than equity securities. However, the returns on fixed-income securities are limited and normally do not increase with the issuer’s earnings. This limits the potential appreciation of fixed-income securities as compared to equity securities.

A security’s yield measures the annual income earned on a security as a percentage of its price. A security’s yield will increase or decrease depending upon whether it costs less (a discount) or more (a premium) than the principal amount. If the issuer may redeem the security before its scheduled maturity, the price and yield on a discount or premium security may change based upon the probability of an early redemption. Securities with higher risks generally have higher yields.

The following describes the principal types of fixed-income securities in which the Fund invests.

Treasury Securities

Treasury securities are direct obligations of the federal government of the United States. Treasury securities are generally regarded as having the lowest credit risks.

Agency Securities

Agency securities are issued or guaranteed by a federal agency or other government sponsored entity (GSE) acting under federal authority. Some GSE securities are supported by the full faith and credit of the United States. These include the Government National Mortgage Association, Small Business Administration, Farm Credit System Financial Assistance Corporation, Farmer’s Home Administration, Federal Financing Bank, General Services Administration, Department of Housing and Urban Development, Export-Import Bank, Overseas Private Investment Corporation and Washington Metropolitan Area Transit Authority Bonds.

Other GSE securities receive support through federal subsidies, loans or other benefits. For example, the U.S. Treasury is authorized to purchase specified amounts of securities issued by (or otherwise make funds available to) the Federal Home Loan Bank System, Federal Home Loan Mortgage Corporation, Federal National Mortgage Association and Tennessee Valley Authority in support of such obligations.

A few GSE securities have no explicit financial support, but are regarded as having implied support because the federal government sponsors their activities. These include the Farm Credit System, Financing Corporation and Resolution Funding Corporation.

Investors regard agency securities as having low credit risks, but not as low as Treasury securities.

A Fund treats mortgage-backed securities guaranteed by a GSE as if issued or guaranteed by a federal agency.

Although such a guarantee protects against credit risks, it does not reduce market and prepayment risks.

Mortgage-Backed Securities

Mortgage-backed securities represent interests in pools of mortgages. The mortgages that comprise a pool normally have similar interest rates, maturities, and other terms. Mortgages may have fixed or adjustable interest rates. Adjustable-rate mortgages are known as ARMs.

Mortgage-backed securities come in a variety of forms. The simplest forms of mortgage-backed securities are pass-through certificates. Holders of pass-through certificates receive a pro rata share of all net interest and principal payments and prepayments from the underlying mortgages. As a result, the holders assume all interest rate and prepayment risks of the underlying mortgages. Other mortgage-backed securities may have more complicated financial structures.

COLLATERALIZED MORTGAGE OBLIGATIONS (CMOS)

CMOs, including interests in real estate mortgage investment conduits (REMICs), allocate payments and prepayments from an underlying pass-through certificate among holders of different classes of mortgage-backed securities. This creates different prepayment and interest rate risks for each CMO class. The degree of increased or decreased prepayment risks depends upon the structure of the CMOs. However, the actual returns on any type of mortgage-backed security depend upon the performance of the underlying pool of mortgages, which no one can predict and will vary among pools.

FLOATERS AND INVERSE FLOATERS

Another variant allocates interest payments between two classes of CMOs. One class (Floaters) receives a share of interest payments based upon a market index such as the London Interbank Offered Rate (LIBOR). The other class (Inverse Floaters) receives any remaining interest payments from the underlying mortgages. Floater classes receive more interest (and Inverse Floater classes receive correspondingly less interest) as interest rates rise. This shifts prepayment and interest rate risks from the Floater to the Inverse Floater class, reducing the price volatility of the Floater class and increasing the price volatility of the Inverse Floater class.

Regulatory Compliance

In accordance with the rules and regulations established by the National Credit Union Administration (NCUA), 12 CFR §703.16, the Fund may not purchase a residual interest in a CMO or REMIC. In addition, the Fund will not purchase zero coupon securities with maturities greater than ten years.

SPECIAL TRANSACTIONS

Repurchase Agreements

Repurchase agreements are transactions in which the Fund buys a security from a dealer or bank and agrees to sell the security back at a mutually agreed upon time and price. The repurchase price exceeds the sale price, reflecting the Fund’s return on the transaction. This return is unrelated to the interest rate on the underlying security. The Fund will enter into repurchase agreements only with banks and other recognized financial institutions, such as securities dealers, deemed creditworthy by the Adviser.

The Fund’s custodian or subcustodian will take possession of the securities subject to repurchase agreements. The Adviser or subcustodian will monitor the value of the underlying security each day to ensure that the value of the security always equals or exceeds the repurchase price.

Repurchase agreements are subject to credit risks.

What are the Specific Risks of Investing in the Fund?

The following provides general information on risks associated with the types of securities in which the Fund principally invests. The Fund may invest in other types of securities as a non-principal investment; risks associated with investing in such other securities are described in the Fund’s SAI.

INTEREST RATE RISKS

Prices of fixed-income securities rise and fall in response to changes in the interest rate paid by similar securities. Generally, when interest rates rise, prices of fixed-income securities fall. However, market factors, such as the demand for particular fixed-income securities, may cause the price of certain fixed-income securities to fall while the prices of other securities rise or remain unchanged.

Interest rate changes have a greater effect on the price of fixed-income securities with longer durations. Duration measures the price sensitivity of a fixed-income security to changes in interest rates.

ISSUER CREDIT RISK

Credit risk is the possibility that an issuer will default on a security by failing to pay interest or principal when due. If an issuer defaults, a Fund will lose money. Money market funds try to minimize this risk by purchasing higher quality securities.

Many fixed-income securities receive credit ratings from NRSROs such as Standard & Poor’s and Moody’s Investors Services, Inc. These NRSROs assign ratings to securities by assessing the likelihood of issuer default. Lower credit ratings correspond to higher perceived credit risk and higher credit ratings correspond to lower perceived credit risks. Credit ratings do not provide assurance against default or other loss of money. If a security has not received a rating, a Fund must rely entirely upon the Adviser’s credit assessment.

Fixed-income securities generally compensate for greater credit risk by paying interest at a higher rate. The difference between the yield of a security and the yield of a U.S. Treasury security or other appropriate benchmark with a comparable maturity (the spread) measures the additional interest paid for risk. Spreads may increase generally in response to adverse economic or market conditions. A security’s spread may also increase if the security’s rating is lowered, or the security is perceived to have an increased credit risk. An increase in the spread will cause the price of the security to decline.

COUNTERPARTY CREDIT RISKS

Credit risk includes the possibility that a party to a transaction involving a Fund will fail to meet its obligations. This could cause a Fund to lose the benefit of the transaction or prevent a Fund from selling or buying other securities to implement its investment strategy.

PREPAYMENT RISKS

Unlike traditional fixed-income securities, which pay a fixed rate of interest until maturity (when the entire principal amount is due), payments on mortgage- backed securities include both interest and a partial payment of principal. Partial payment of principal may be comprised of scheduled principal payments as well as unscheduled payments from the voluntary prepayment, refinancing or foreclosure of the underlying loans. These unscheduled prepayments of principal create risks that can adversely affect a fund holding mortgage-backed securities.

For example, when interest rates decline, the values of mortgage-backed securities generally rise. However, when interest rates decline, unscheduled prepayments can be expected to accelerate, and the Fund would be required to reinvest the proceeds of the prepayments at the lower interest rates then available. Unscheduled prepayments would also limit the potential for capital appreciation on mortgage-backed securities.

Conversely, when interest rates rise, the values of mortgage-backed securities generally fall. Since rising interest rates typically result in decreased prepayments, this could lengthen the duration of mortgage-backed securities, and cause their value to decline more than traditional fixed-income securities.

Generally, mortgage-backed securities compensate for the increased risk associated with prepayments by paying a higher yield. As noted above, the additional interest paid for risk is measured by the spread between the yield of a mortgage-backed security and the yield of a Treasury security with a comparable duration. An increase in the spread will cause the price of the mortgage-backed security to decline. Spreads generally increase in response to adverse economic or market conditions. Spreads may also increase if the security is perceived to have an increased prepayment risk or is perceived to have less market demand.

What Do Shares Cost?

CALCULATION OF NET ASSET VALUE

When the Fund receives your transaction request in proper form (as described in this Prospectus), it is processed at the next calculated net asset value of a Share (NAV) plus any applicable front-end sales charge (public offering price). A Share’s NAV is determined as of the end of regular trading on the New York Stock Exchange (NYSE) (normally 4:00 p.m. Eastern time) each day the NYSE is open. The Fund calculates the NAV of each class by valuing the assets allocated to the Share’s class, subtracting the liabilities allocated to the class and dividing the balance by the number of Shares of the class outstanding. The Fund’s current NAV and public offering price may be found at FederatedInvestors.com and in the mutual funds section of certain newspapers under “Federated.”

You can purchase, redeem or exchange Shares any day the NYSE is open.

When the Fund holds fixed-income securities that trade on days the NYSE is closed, the value of the Fund’s assets may change on days you cannot purchase or redeem Shares.

In calculating its NAV, the Fund generally values investments as follows:

• Fixed-income securities acquired with remaining maturities greater than 60 days are fair valued using price evaluations provided by a pricing service approved by the Board of Trustees (Board).

• Fixed-income securities acquired with remaining maturities of 60 days or less are valued at their cost (adjusted for the accretion of any discount or amortization of any premium).

If the Fund cannot obtain a price or price evaluation from a pricing service for an investment, the Fund may attempt to value the investment based upon the mean of bid and asked quotations, or fair value the investment based on price evaluations, from one or more dealers. If any price, quotation, price evaluation or other pricing source is not readily available when the NAV is calculated, the Fund uses the fair value of the investment determined in accordance with the procedures described below. There can be no assurance that the Fund could purchase or sell an investment at the price used to calculate the Fund’s NAV.

Shares of other mutual funds are valued based upon their reported NAVs. The prospectuses for these mutual funds explain the circumstances under which they will use fair value pricing and the effects of using fair value pricing.

Fair Valuation and Significant Events Procedures

The Board has ultimate responsibility for determining the fair value of investments for which market quotations are not readily available. The Board has appointed a Valuation Committee comprised of officers of the Fund and of the Adviser to assist in this responsibility and in overseeing the calculation of the NAV. The Board has also authorized the use of pricing services recommended by the Valuation Committee to provide fair value evaluations of the current value of certain investments for purposes of calculating the NAV. In the event that market quotations and price evaluations are not available for an investment, the Valuation Committee determines the fair value of the investment in accordance with procedures adopted by the Board. The Board periodically reviews and approves the fair valuations made by the Valuation Committee and any changes made to the procedures. The Fund’s SAI discusses the methods used by pricing services and the Valuation Committee to value investments.

Using fair value to price investments may result in a value that is different from an investment’s most recent closing price and from the prices used by other mutual funds to calculate their NAVs. The Valuation Committee generally will not change an investment’s fair value in the absence of new information relating to the investment or its issuer such as changes in the issuer’s business or financial results, or relating to external market factors, such as trends in the market values of comparable securities. This may result in less frequent, and larger, changes in fair values as compared to prices based on market quotations or price evaluations from pricing services or dealers.

The Board also has adopted procedures requiring an investment to be priced at its fair value whenever the Adviser determines that a significant event affecting the value of the investment has occurred between the time as of which the price of the investment would otherwise be determined and the time as of which the NAV is computed. An event is considered significant if there is both an affirmative expectation that the investment’s value will change in response to the event and a reasonable basis for quantifying the resulting change in value. Examples of significant events that may occur after the close of the principal market on which a security is traded, or after the time of a price evaluation provided by a pricing service or a dealer, include:

• With respect to price evaluations of fixed-income securities determined before the close of regular trading on the NYSE, actions by the Federal Reserve Open Market Committee and other significant trends in U.S. fixed-income markets;
• Political or other developments affecting the economy or markets in which an issuer conducts its operations or its securities are traded; and
• Announcements concerning matters such as acquisitions, recapitalizations, or litigation developments, or a natural disaster affecting the issuer’s operations or regulatory changes or market developments affecting the issuer’s industry.

The Valuation Committee uses a pricing service to determine the fair value of equity securities traded principally in foreign markets when the Adviser determines that there has been a significant trend in the U.S. equity markets or in index futures trading. For other significant events, the Fund may seek to obtain more current quotations or price evaluations from alternative pricing sources. If a reliable alternative pricing source is not available, the Valuation Committee will determine the fair value of the investment using another method approved by the Board. The Board has ultimate responsibility for any fair valuations made in response to a significant event.

The fair valuation of securities following a significant event can serve to reduce arbitrage opportunities for short-term traders to profit at the expense of long-term investors in the Fund. For example, such arbitrage opportunities may exist when the market on which portfolio securities are traded closes before the Fund calculates its NAV, which is typically the case with Asian and European markets. However, there is no assurance that these significant event procedures will prevent dilution of the NAV by short-term traders. See “Account and Share Information -- Frequent Trading Policies” for other procedures the Fund employs to deter such short-term trading.

How is the Fund Sold?

The Fund offers three Share classes: Class A Shares, Institutional Shares and Institutional Service Shares, each representing interests in a single portfolio of securities. This Prospectus relates only to Institutional Service Shares. All Share classes have different sales charges and other expenses which affect their performance. Contact your financial intermediary or call 1-800-341-7400 for more information concerning the other classes.

The Fund’s Distributor, Federated Securities Corp., markets the Shares described in this Prospectus to Eligible Investors, as described below. In connection with a request to purchase Shares, you should provide documentation sufficient to verify your status as an Eligible Investor. As a general matter, Shares are not available for direct investment by natural persons.

The following categories of Eligible Investors are not subject to any minimum initial investment amount for the purchase of Shares (however, such accounts remain subject to the Fund’s policy on “Accounts with Low Balances” as discussed later in this Prospectus):

• An investor participating in a wrap program or other fee-based program sponsored by a financial intermediary;

• An investor participating in a no-load network or platform sponsored by a financial intermediary where Federated has entered into an agreement with the intermediary;

• A trustee/director, employee or former employee of the Fund, the Adviser, the Distributor and their affiliates; an immediate family member of these individuals, or a trust, pension or profit-sharing plan for these individuals;

• An employer-sponsored retirement plan;

• A trust institution investing on behalf of its trust customers;

• Additional sales to an investor (including a natural person) who owned Institutional Service Shares of the Fund as of December 31, 2008;

• An investor (including a natural person) who acquired Institutional Service Shares of a Federated Fund pursuant to the terms of an agreement and plan of reorganization which permits the investor to acquire such shares; and

• In connection with an acquisition of an investment management or advisory business, or related investment services, products or assets, by Federated or its investment advisory subsidiaries, an investor (including a natural person) who: (1) becomes a client of an investment advisory subsidiary of Federated; or (2) is a shareholder or interest holder of a pooled investment vehicle or product that becomes advised or subadvised by a Federated investment advisory subsidiary as a result of such an acquisition other than as a result of a fund reorganization transaction pursuant to an agreement and plan of reorganization.

The following categories of Eligible Investors are subject to applicable minimum initial investment amounts for the purchase of Shares (see “How To Purchase Shares” below.):

• An investor purchasing Shares through a financial intermediary other than pursuant to an Eligible Investor arrangement described above;

• An investor, other than a natural person, purchasing Shares directly from the Fund; and

• In connection with an initial purchase of Shares through an exchange, an investor (including a natural person) who owned Institutional Shares of another Federated Fund as of December 31, 2008.

Under the Distributor’s Contract with the Fund, the Distributor offers Shares on a continuous, best-efforts basis. The Distributor is a subsidiary of Federated Investors, Inc. (Federated).

Payments to Financial Intermediaries

The Fund and its affiliated service providers may pay fees as described below to financial intermediaries (such as broker-dealers, banks, investment advisers or third-party administrators) whose customers are shareholders of the Fund.

RULE 12b -1 FEES

The Fund has adopted a Rule 12b-1 Plan, which allows it to pay marketing fees of up to 0.05% of average net assets to the Distributor for the sale, distribution, administration and customer servicing of the Fund’s Institutional Service Shares. When the Distributor receives Rule 12b-1 Fees, it may pay some or all of them to financial intermediaries whose customers purchase Shares. Because these Shares pay marketing fees on an ongoing basis, your investment cost may be higher over time than other shares with different sales charges and marketing fees.

SERVICE FEES

The Fund may pay Service Fees of up to 0.25% of average net assets to financial intermediaries or to Federated Shareholder Services Company (FSSC), a subsidiary of Federated, for providing services to shareholders and maintaining shareholder accounts. Intermediaries that receive Service Fees may include a company affiliated with management of Federated. If a financial intermediary receives Service Fees on an account, it is not eligible to also receive Account Administration Fees on that same account.

ACCOUNT ADMINISTRATION FEES

The Fund may pay Account Administration Fees of up to 0.25% of average net assets to banks that are not registered as broker-dealers or investment advisers for providing administrative services to the Funds and shareholders. If a financial intermediary receives Account Administration Fees on an account, it is not eligible to also receive Service Fees or Recordkeeping Fees on that same account.

RECORDKEEPING FEES

The Fund may pay Recordkeeping Fees on an average net assets basis or on a per account per year basis to financial intermediaries for providing recordkeeping services to the Funds and shareholders. If a financial intermediary receives Recordkeeping Fees on an account, it is not eligible to also receive Account Administration Fees or Networking Fees on that same account.

NETWORKING FEES

The Fund may reimburse Networking Fees on a per account per year basis to financial intermediaries for providing administrative services to the Funds and shareholders on certain non-omnibus accounts. If a financial intermediary receives Networking Fees on an account, it is not eligible to also receive Recordkeeping Fees on that same account.

ADDITIONAL PAYMENTS TO FINANCIAL INTERMEDIARIES

The Distributor may pay out of its own resources amounts (including items of material value) to certain financial intermediaries that support the sale of Shares or provide services to Fund shareholders. The amounts of these payments could be significant, and may create an incentive for the financial intermediary or its employees or associated persons to recommend or sell Shares of the Fund to you. In some cases, such payments may be made by or funded from the resources of companies affiliated with the Distributor (including the Adviser). These payments are not reflected in the fees and expenses listed in the fee table section of the Fund’s prospectus and described above because they are not paid by the Fund.

These payments are negotiated and may be based on such factors as the number or value of Shares that the financial intermediary sells or may sell; the value of client assets invested; or the type and nature of services or support furnished by the financial intermediary. These payments may be in addition to payments of Rule 12b-1 Fees and/or Service Fees and/or Account Administration Fees and/or Recordkeeping Fees and/or Networking Fees made by the Fund to the financial intermediary. In connection with these payments, the financial intermediary may elevate the prominence or profile of the Fund and/or other Federated funds within the financial intermediary’s organization by, for example, placement on a list of preferred or recommended funds, and/or granting the Distributor preferential or enhanced opportunities to promote the funds in various ways within the financial intermediary’s organization. You can ask your financial intermediary for information about any payments it receives from the Distributor or the Fund and any services provided.

How to Purchase Shares

Eligible Investors may purchase Shares through a financial intermediary, directly from the Fund or through an exchange from another Federated fund in the manner described above under “How Is the Fund Sold?.” The Fund reserves the right to reject any request to purchase or exchange Shares.

Where applicable, the required minimum initial investment for Fund Shares is generally $1,000,000. There is no required minimum subsequent investment amount. All accounts, including those for which there is no minimum initial investment amount required, are subject to the Fund’s policy on “Accounts with Low Balances” as discussed later in this Prospectus.

Financial intermediaries may impose higher or lower minimum investment requirements on their customers than those imposed by the Fund. Keep in mind that financial intermediaries may charge you fees for their services in connection with your Share transactions.

THROUGH A FINANCIAL INTERMEDIARY

• Establish an account with the financial intermediary; and

• Submit your purchase order to the financial intermediary before the end of regular trading on the NYSE (normally 4:00 p.m. Eastern time). You will receive the next calculated NAV if the financial intermediary forwards the order on the same day, and forwards your payment by the prescribed trade settlement date (typically within one to three business days) to the Fund’s transfer agent, State Street Bank and Trust Company (Transfer Agent). You will become the owner of Shares and receive dividends when your payment is received in accordance with these time frames (provided that, if payment is received in the form of a check, the check clears). If your payment is not received in accordance with these time frames, or a check does not clear, your purchase will be canceled and you could be liable for any losses, fees or expenses incurred by the Fund or the Fund’s Transfer Agent.

Financial intermediaries should send payments according to the instructions in the sections “By Wire” or “By Check.”

DIRECTLY FROM THE FUND

• Establish your account with the Fund by submitting a completed New Account Form; and
• Send your payment to the Fund by Federal Reserve wire or check.

You will become the owner of Shares and your Shares will be priced at the next calculated NAV after the Fund receives your wire or your check. If your check does not clear, your purchase will be canceled and you could be liable for any losses or fees incurred by the Fund or State Street Bank and Trust Company, the Fund’s transfer agent.

An institution may establish an account and place an order by calling the Fund and the Shares will be priced at the next calculated NAV after the Fund receives the order.

By Wire

Send your wire to:

State Street Bank and Trust Company
Boston, MA
Dollar Amount of Wire
ABA Number 011000028
BFN: 23026552
Attention: Federated EDGEWIRE
Wire Order Number, Dealer Number or Group Number
Nominee/Institution Name
Fund Name and Number and Account Number

You cannot purchase Shares by wire on holidays when wire transfers are restricted.

By Check

Make your check payable to The Federated Funds , note your account number on the check, and send it to:

The Federated Funds
P.O. Box 8600
Boston, MA 02266-8600

If you send your check by a private courier or overnight delivery service that requires a street address, send it to:

The Federated Funds
30 Dan Road
Canton, MA 02021

Payment should be made in U.S. dollars and drawn on a U.S. bank. The Fund reserves the right to reject any purchase request. For example, to protect against check fraud the Fund may reject any purchase request involving a check that is not made payable to The Federated Funds (including, but not limited to, requests to purchase Shares using third-party checks), or involving temporary checks or credit card checks.

THROUGH AN EXCHANGE

You may purchase Shares through an exchange from any Federated fund or share class that does not have a stated sales charge or contingent deferred sales charge, except Liberty U.S. Government Money Market Trust and Class K Shares. You must meet the minimum initial investment requirement for purchasing Shares (if applicable) and both accounts must have identical registrations.

BY AUTOMATED CLEARING HOUSE (ACH)

Once you have opened an account, you may purchase additional Shares through a depository institution that is an ACH member. This purchase option can be established by completing the appropriate sections of the New Account Form.

How to Redeem and Exchange Shares

You should redeem or exchange Shares:

• through a financial intermediary if you purchased Shares through a financial intermediary; or
• directly from the Fund if you purchased Shares directly from the Fund.

Shares of the Fund may be redeemed for cash or exchanged for shares of the same class of other Federated funds on days on which the Fund computes its NAV. Redemption requests may be made by telephone or in writing.

THROUGH A FINANCIAL INTERMEDIARY

Submit your redemption or exchange request to your financial intermediary by the end of regular trading on the NYSE (normally 4:00 p.m. Eastern time). The redemption amount you will receive is based upon the next calculated NAV after the Fund receives the order from your financial intermediary.

DIRECTLY FROM THE FUND

By Telephone

You may redeem or exchange Shares by simply calling the Fund at 1-800-341-7400.

If you call before the end of regular trading on the NYSE (normally 4:00 p.m. Eastern time) you will receive a redemption amount based on that day’s NAV.

By Mail

You may redeem or exchange Shares by sending a written request to the Fund.

You will receive a redemption amount based on the next calculated NAV after the Fund receives your written request in proper form.

Send requests by mail to:

The Federated Funds
P.O. Box 8600
Boston, MA 02266-8600

Send requests by private courier or overnight delivery service to:

The Federated Funds
30 Dan Road
Canton, MA 02021

All requests must include:

• Fund Name and Share Class, account number and account registration;
• amount to be redeemed or exchanged;
• signatures of all shareholders exactly as registered; and
• if exchanging , the Fund Name and Share Class, account number and account registration into which you are exchanging.

Call your financial intermediary or the Fund if you need special instructions.

Signature Guarantees

Signatures must be guaranteed by a financial institution which is a participant in a Medallion signature guarantee program if:

• your redemption will be sent to an address other than the address of record;
• your redemption will be sent to an address of record that was changed within the last 30 days;
• a redemption is payable to someone other than the shareholder(s) of record; or
• exchanging (transferring) into another fund with a different shareholder registration.

A Medallion signature guarantee is designed to protect your account from fraud. Obtain a Medallion signature guarantee from a bank or trust company, savings association, credit union or broker, dealer, or securities exchange member. A   notary public cannot provide a signature guarantee.

PAYMENT METHODS FOR REDEMPTIONS

Your redemption proceeds will be mailed by check to your address of record. The following payment options are available if you complete the appropriate section of the New Account Form or an Account Service Options Form. These payment options require a signature guarantee if they were not established when the account was opened:

• an electronic transfer to your account at a financial institution that is an ACH member; or
• wire payment to your account at a domestic commercial bank that is a Federal Reserve System member.

Redemption In-Kind

Although the Fund intends to pay Share redemptions in cash, it reserves the right to pay the redemption price in whole or in part by a distribution of the Fund’s portfolio securities.

LIMITATIONS ON REDEMPTION PROCEEDS

Redemption proceeds normally are wired or mailed within one business day after receiving a request in proper form. Payment may be delayed for up to seven days:

• to allow your purchase to clear (as discussed below);
• during periods of market volatility;
• when a shareholder’s trade activity or amount adversely impacts the Fund’s ability to manage its assets; or
• during any period when the Federal Reserve wire or applicable Federal Reserve banks are closed, other than customary weekend and holiday closings.

If you request a redemption of Shares recently purchased by check (including a cashier’s check or certified check), money order, bank draft or ACH, your redemption proceeds may not be made available up to seven calendar days to allow the Fund to collect payment on the instrument used to purchase such Shares. If the purchase instrument does not clear, your purchase order will be canceled and you will be responsible for any losses incurred by the Fund as a result of your canceled order.

In addition, the right of redemption may be suspended, or the payment of proceeds may be delayed, during any period:

• when the NYSE is closed, other than customary weekend and holiday closings;
• when trading on the NYSE is restricted, as determined by the SEC; or
• in which an emergency exists, as determined by the SEC, so that disposal of the Fund’s investments or determination of its NAV is not reasonably practicable.

You will not accrue interest or dividends on uncashed redemption checks from the Fund if those checks are undeliverable and returned to the Fund.

EXCHANGE PRIVILEGE

You may exchange Shares of the Fund for shares of any Federated fund or share class that does not have a stated sales charge or contingent deferred sales charge, except Liberty U.S. Government Money Market Trust and Class K Shares. To do this, you must:

• ensure that the account registrations are identical;
• meet any applicable minimum initial investment requirements; and
• receive a prospectus for the fund into which you wish to exchange.

An exchange is treated as a redemption and a subsequent purchase, and is a taxable transaction.

The Fund may modify or terminate the exchange privilege at any time.

ADDITIONAL CONDITIONS

Telephone Transactions

The Fund will record your telephone instructions. If the Fund does not follow reasonable procedures, it may be liable for losses due to unauthorized or fraudulent telephone instructions.

Share Certificates

The Fund no longer issues share certificates. If you are redeeming or exchanging Shares represented by certificates previously issued by the Fund, you must return the certificates with your written redemption or exchange request. For your protection, send your certificates by registered or certified mail, but do not endorse them.

Account and Share Information

CONFIRMATIONS AND ACCOUNT STATEMENTS

You will receive confirmation of purchases, redemptions and exchanges. In addition, you will receive periodic statements reporting all account activity, including dividends and capital gains paid.

DIVIDENDS AND CAPITAL GAINS

The Fund declares any dividends daily and pays them monthly to shareholders. If you purchase Shares by wire, you begin earning dividends on the day your wire is received. If you purchase Shares by check, you begin earning dividends on the business day after the Fund receives your check. In either case, you earn dividends through the day your redemption request is received.

In addition, the Fund pays any capital gains at least annually, and may make such special distributions of dividends and capital gains as may be necessary to meet applicable regulatory requirements. Your dividends and capital gains distributions will be automatically reinvested in additional Shares without a sales charge, unless you elect cash payments. Dividends may also be reinvested without sales charges in shares of any class of any other Federated fund of which you are already a shareholder.

If you have elected to receive dividends and/or capital gain distributions in cash, and your check is returned by the postal or other delivery service as “undeliverable,” or you do not respond to mailings from Federated with regard to uncashed distribution checks, your distribution option will automatically be converted to having all dividends and capital gains reinvested in additional shares. No interest will accrue on amounts represented by uncashed distribution checks.

If you purchase Shares just before the record date for a dividend or capital gain distribution, you will pay the full price for the Shares and then receive a portion of the price back in the form of a taxable distribution, whether or not you reinvest the distribution in Shares. Therefore, you should consider the tax implications of purchasing Shares shortly before the record date for a dividend or capital gain. Contact your financial intermediary or the Fund for information concerning when dividends and capital gains will be paid.

Under the Federal securities laws, the Fund is required to provide a notice to shareholders regarding the source of distributions made by the Fund if such distributions are from sources other than ordinary investment income. In addition, important information regarding the Fund’s distributions, if applicable, is available in the “Products” section of Federated’s website at FederatedInvestors.com. To access this information from the “Products” section of the website, click on the “Notice to Shareholders -- Source of Distributions” link under “Related Information.”

ACCOUNTS WITH LOW BALANCES

Due to the high cost of maintaining accounts with low balances, accounts may be closed if redemptions or exchanges cause the account balance to fall below $25,000. Before an account is closed, you will be notified and allowed at least 30 days to purchase additional Shares to meet the minimum.

TAX INFORMATION

The Fund sends an annual statement of your account activity to assist you in completing your federal, state and local tax returns. Fund distributions of dividends and capital gains are taxable to you whether paid in cash or reinvested in the Fund. Dividends are taxable at different rates depending on the source of dividend income. Distributions of net short-term capital gains are taxable to you as ordinary income. Distributions of net long-term capital gains are taxable to you as long-term capital gains regardless of how long you have owned your Shares.

Fund distributions are expected to be primarily dividends. Redemptions and exchanges are taxable sales. Please consult your tax adviser regarding your federal, state, and local tax liability.

FREQUENT TRADING POLICIES

Given the short-term nature of the Fund’s investments, the Fund does not anticipate that in the normal case frequent or short-term trading into and out of the Fund will have significant adverse consequences for the Fund and its shareholders. For this reason and because the Fund is intended to be used as a liquid short-term investment, the Fund’s Board has not adopted policies or procedures to monitor or discourage frequent or short-term trading of the Fund’s Shares. Regardless of their frequency or short-term nature, purchases and redemptions of Fund Shares can have adverse effects on the management of the Fund’s portfolio and its performance.

PORTFOLIO HOLDINGS INFORMATION

Information concerning the Fund’s portfolio holdings is available in the “Products” section of Federated’s website at FederatedInvestors.com . A complete listing of the Fund’s portfolio holdings as of the end of each calendar quarter is posted on the website 30 days (or the next business day) after the end of the quarter and remains posted until replaced by the information for the succeeding quarter. Summary portfolio composition information as of the close of each month is posted on the website 15 days (or the next business day) after month-end and remains until replaced by the information for the succeeding month. The summary portfolio composition information may include identification of the Fund’s top ten holdings, recent purchase and sale transactions and a percentage breakdown of the portfolio by sector.

To access this information from the “Products” section of the website, click on the “Portfolio Holdings” link under “Related Information” and select the appropriate link opposite the name of the Fund, or select the name of the Fund, and from the Fund’s page click on the “Portfolio Holdings” or “Composition” link.

You may also access portfolio information as of the end of the Fund’s fiscal quarters from the “Products” section of the website. The Fund’s Annual and Semi-Annual Reports, which contain complete listings of the Fund’s portfolio holdings as of the end of the Fund’s second and fourth fiscal quarters, may be accessed by selecting the “Prospectuses and Regulatory Reports” link under “Related Information” and selecting the link to the appropriate PDF. Complete listings of the Fund’s portfolio holdings as of the end of the Fund’s first and third fiscal quarters may be accessed by selecting “Portfolio Holdings” from the “Products” section and then selecting the appropriate link opposite the name of the Fund. Fiscal quarter information is made available on the website within 70 days after the end of the fiscal quarter. This information is also available in reports filed with the SEC at the SEC’s website at www.sec.gov.

In addition, from time to time (for example, during periods of unusual market conditions), additional information regarding the Fund’s portfolio holdings and/or composition may be posted to Federated’s website. If and when such information is posted, its availability will be noted on, and the information will be accessible from, the home page of the website.

Who Manages the Fund?

The Board governs the Fund. The Board selects and oversees the Adviser, Federated Investment Management Company. The Adviser manages the Fund’s assets, including buying and selling portfolio securities. Federated Advisory Services Company (FASC), an affiliate of the Adviser, provides certain support services to the Adviser. The fee for these services is paid by the Adviser and not by the Fund. The address of the Adviser and FASC is Federated Investors Tower, 1001 Liberty Avenue, Pittsburgh, PA 15222-3779.

The Adviser and other subsidiaries of Federated advise approximately 149 equity, fixed-income, and money market mutual funds as well as a variety of other pooled investment vehicles and customized separately managed accounts, which totaled approximately $407 billion in assets as of December 31, 2008. Federated was established in 1955 and is one of the largest investment managers in the United States with approximately 1,380 employees. Federated provides investment products to over 5,300 investment professionals and institutions.

PORTFOLIO MANAGEMENT INFORMATION

Susan R. Hill

Susan R. Hill has been the Fund’s Portfolio Manager since July 1997. She is Vice President of the Trust. Ms. Hill joined Federated in 1990 and has been a Senior Portfolio Manager since 2003 and a Senior Vice President of the Fund’s Adviser since 2005. Ms. Hill was a Portfolio Manager from 1994 until 2003, and served as Vice President of the Fund’s Adviser from 1997 until 2004 and an Assistant Vice President of the Fund’s Adviser from 1994 until 1997. Ms. Hill is a Chartered Financial Analyst and received an M.S. in Industrial Administration from Carnegie Mellon University.

Donald T. Ellenberger

Donald T. Ellenberger has been the Fund’s Portfolio Manager since November 2003. He has responsibility for the day-to-day operation of the mortgage-backed securities component of the Fund. Mr. Ellenberger joined Federated in 1996 as a Portfolio Manager and a Vice President of a Federated advisory subsidiary. He became a Senior Vice President of the Fund’s Adviser in January 2005 and served as a Vice President of the Fund’s Adviser from 1997 through 2004. From 1986 to 1996, he served as a Trader/Portfolio Manager for Mellon Bank, N.A. Mr. Ellenberger received his M.B.A. in Finance from Stanford University.

The Fund’s SAI provides additional information about the Portfolio Managers’ compensation, management of other accounts, and ownership of securities in the Fund.

ADVISORY FEES

The Fund’s investment advisory contract provides for payment to the Adviser of an annual investment advisory fee of 0.40% of the Fund’s average daily net assets. The Adviser may voluntarily waive a portion of its fee or reimburse the Fund for certain operating expenses.

A discussion of the Board’s review of the Fund’s investment advisory contract is available in the Fund’s Annual Report dated July 31, 2009.

Legal Proceedings

Since October 2003, Federated and related entities (collectively, “Federated”), and various Federated funds (“Funds”), have been named as defendants in several class action lawsuits now pending in the United States District Court for the District of Maryland. The lawsuits were purportedly filed on behalf of people who purchased, owned and/or redeemed shares of Federated-sponsored mutual funds during specified periods beginning November 1, 1998. The suits are generally similar in alleging that Federated engaged in illegal and improper trading practices including market timing and late trading in concert with certain institutional traders, which allegedly caused financial injury to the mutual fund shareholders. These lawsuits began to be filed shortly after Federated’s first public announcement that it had received requests for information on shareholder trading activities in the Funds from the SEC, the Office of the New York State Attorney General (“NYAG”), and other authorities. In that regard, on November 28, 2005, Federated announced that it had reached final settlements with the SEC and the NYAG with respect to those matters. Specifically, the SEC and NYAG settled proceedings against three Federated subsidiaries involving undisclosed market timing arrangements and late trading. The SEC made findings: that Federated Investment Management Company (“FIMC”), an SEC-registered investment adviser to various Funds, and Federated Securities Corp., an SEC-registered broker-dealer and distributor for the Funds, violated provisions of the Investment Advisers Act and Investment Company Act by approving, but not disclosing, three market timing arrangements, or the associated conflict of interest between FIMC and the funds involved in the arrangements, either to other fund shareholders or to the funds’ board; and that Federated Shareholder Services Company, formerly an SEC-registered transfer agent, failed to prevent a customer and a Federated employee from late trading in violation of provisions of the Investment Company Act. The NYAG found that such conduct violated provisions of New York State law. Federated entered into the settlements without admitting or denying the regulators’ findings. As Federated previously reported in 2004, it has already paid approximately $8.0 million to certain funds as determined by an independent consultant. As part of these settlements, Federated agreed to pay disgorgement and a civil money penalty in the aggregate amount of an additional $72 million and, among other things, agreed that it would not serve as investment adviser to any registered investment company unless: (i) at least 75% of the fund’s directors are independent of Federated; (ii) the chairman of each such fund is independent of Federated; (iii) no action may be taken by the fund’s board or any committee thereof unless approved by a majority of the independent trustees of the fund or committee, respectively; and (iv) the fund appoints a “senior officer” who reports to the independent trustees and is responsible for monitoring compliance by the fund with applicable laws and fiduciary duties and for managing the process by which management fees charged to a fund are approved. The settlements are described in Federated’s announcement which, along with previous press releases and related communications on those matters, is available in the “About Us” section of Federated’s website at FederatedInvestors.com .

Federated entities have also been named as defendants in several additional lawsuits that are now pending in the United States District Court for the Western District of Pennsylvania, alleging, among other things, excessive advisory and Rule 12b-1 fees.

The Board of the Funds retained the law firm of Dickstein Shapiro LLP to represent the Funds in each of the lawsuits described in the preceding two paragraphs. Federated and the Funds, and their respective counsel, have been defending this litigation, and none of the Funds remains a defendant in any of the lawsuits (though some could potentially receive any recoveries as nominal defendants). Additional lawsuits based upon similar allegations may be filed in the future. The potential impact of these lawsuits, all of which seek unquantified damages, attorneys’ fees, and expenses, and future potential similar suits is uncertain. Although we do not believe that these lawsuits will have a material adverse effect on the Funds, there can be no assurance that these suits, ongoing adverse publicity and/or other developments resulting from the regulatory investigations will not result in increased Fund redemptions, reduced sales of Fund shares, or other adverse consequences for the Funds.

Financial Information

FINANCIAL HIGHLIGHTS

The Financial Highlights will help you understand the Fund’s financial performance for its past five fiscal years. Some of the information is presented on a per Share basis. Total returns represent the rate an investor would have earned (or lost) on an investment in the Fund, assuming reinvestment of any dividends and capital gains.

This information has been audited by Ernst & Young LLP, an independent registered public accounting firm, whose report, along with the Fund’s audited financial statements, is included in the Annual Report.

Financial Highlights

(For a Share Outstanding Throughout Each Period) ¹

1 Per share data has been restated, as applicable, to reflect a 1-for-5 reverse share split that occurred at the close of business on September 23, 2005.

2 Represents less than $0.01.

3 Based on net asset value, which does not reflect the sales charge, redemption fee or contingent deferred sales charge, if applicable.

4 This expense decrease is reflected in both the net expense and the net investment income ratios shown   above.

Further information about the Fund’s performance is contained in the Fund’s Annual Report dated July 31, 2009, which can be obtained free of charge.

Appendix A: Hypothetical Investment and Expense Information

The following chart provides additional hypothetical information about the effect of the Fund’s expenses, including investment advisory fees and other Fund costs, on the Fund’s assumed returns over a 10-year period. The chart shows the estimated expenses that would be incurred in respect of a hypothetical investment of $10,000, assuming a 5% return each year, and no redemption of Shares. The chart also assumes that the Fund’s annual expense ratio stays the same throughout the 10-year period and that all dividends and distributions are reinvested. The annual expense ratio used in the chart is the same as stated in the “Fees and Expenses” table of this Prospectus (and thus may not reflect any fee waiver or expense reimbursement currently in effect). The maximum amount of any sales charge that might be imposed on the purchase of Shares (and deducted from the hypothetical initial investment of $10,000; the “Front-End Sales Charge”) is reflected in the “Hypothetical Expenses” column. The hypothetical investment information does not reflect the effect of charges (if any) normally applicable to redemptions of Shares (e.g., deferred sales charges, redemption fees). Mutual fund returns, as well as fees and expenses, may fluctuate over time, and your actual investment returns and total expenses may be higher or lower than those shown below.

FEDERATED GOVERNMENT ULTRASHORT DURATION FUND - INSTITUTIONAL SERVICE SHARES
ANNUAL EXPENSE RATIO: 0. 83 %
MAXIMUM FRONT-END SALES CHARGE: NONE

An SAI dated September 30, 2009, is incorporated by reference into this Prospectus. Additional information about the Fund and its investments is contained in the Fund’s SAI and Annual and Semi-Annual Reports to shareholders as they become available. The Annual Report’s Management’s Discussion of Fund Performance discusses market conditions and investment strategies that significantly affected the Fund’s performance during its last fiscal year. The SAI contains a description of the Fund’s policies and procedures with respect to the disclosure of its portfolio securities. To obtain the SAI, Annual Report, Semi-Annual Report and other information without charge, and to make inquiries, call your financial intermediary or the Fund at 1-800-341-7400.

These documents, as well as additional information about the Fund (including portfolio holdings, performance and distributions), are also available on Federated’s website at FederatedInvestors.com.

You can obtain information about the Fund (including the SAI) by writing to or visiting the SEC’s Public Reference Room in Washington, DC. You may also access Fund information from the EDGAR Database on the SEC’s website at www.sec.gov. You can purchase copies of this information by contacting the SEC by email at publicinfo@sec.gov or by writing to the SEC’s Public Reference Section, Washington, DC 20549-0102. Call 1-202-942-8090 for information on the Public Reference Room’s operations and copying fees.

Federated Investors
World-Class Investment Manager

Federated Government Ultrashort Duration Fund
Federated Investors Funds
4000 Ericsson Drive
Warrendale, PA 15086-7561

Contact us at FederatedInvestors.com
or call 1-800-341-7400.

Federated Securities Corp., Distributor

Investment Company Act File No. 811-7193

Federated is a registered mark of Federated Investors, Inc.
2009 © Federated Investors, Inc.

Cusip 31420B805

<R>

G00352-06 (9/ 09 )

</R>