SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

Form N-1A

REGISTRATION STATEMENT UNDER THE SECURITIES ACT OF 1933

Pre-Effective Amendment No. _____

Post-Effective Amendment No. 5 (File No. 333-131683)                         [X]

                                     and/or

REGISTRATION STATEMENT UNDER THE INVESTMENT COMPANY ACT OF 1940

Amendment No. 6 (File No. 811-21852)                                         [X]

RIVERSOURCE SERIES TRUST
(Formerly RiverSource Retirement Series Trust)
50606 Ameriprise Financial Center
Minneapolis, MN 55474

Scott R. Plummer
5228 Ameriprise Financial Center
Minneapolis, MN 55474
(612) 671-1947

Approximate Date of Proposed Public Offering:

It is proposed that this filing will become effective (check appropriate box)

[ ]  immediately upon filing pursuant to paragraph (b)

[X]  on Oct. 3, 2007 pursuant to paragraph (b)

[ ]  60 days after filing pursuant to paragraph (a)(1)

[ ]  on (date) pursuant to paragraph (a)(1)

[ ]  75 days after filing pursuant to paragraph (a)(2)

[ ]  on (date) pursuant to paragraph (a)(2) of rule 485

If appropriate, check the following box:

[ ]  This Post-Effective Amendment designates a new effective date for a
     previously filed Post-Effective Amendment.

This filing is not intended to supersede the prospectus, Statement of Additional Information and financial statements for RiverSource Retirement Plus 2010 Fund, RiverSource Retirement Plus 2015 Fund, RiverSource Retirement Plus 2020 Fund, RiverSource Retirement Plus 2025 Fund, RiverSource Retirement Plus 2030 Fund, RiverSource Retirement Plus 2035 Fund, RiverSource Retirement Plus 2040 Fund and RiverSource Retirement Plus 2045 Fund filed in Registrant's Post-Effective Amendment No. 3 to Registration Statement No. 333-131683 filed on or about June 28, 2007.


Prospectus

(RIVERSOURCE INVESTMENTS LOGO)

RiverSource

Advanced Alpha SM

Strategies

PROSPECTUS OCT. 3, 2007

RIVERSOURCE(R) 120/20 CONTRARIAN EQUITY FUND SEEKS TO PROVIDE SHAREHOLDERS WITH LONG-TERM GROWTH OF CAPITAL.
RIVERSOURCE(R) 130/30 U.S. EQUITY FUND SEEKS TO PROVIDE SHAREHOLDERS WITH LONG-TERM GROWTH OF CAPITAL.

Classes A, B, C, I and R5

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

You may qualify for sales charge discounts on purchases of Class A shares. Please notify your financial institution if you have other accounts holding shares of RiverSource funds to determine whether you qualify for a sales charge discount. See "Buying and Selling Shares" for more information.

NOT FDIC INSURED - MAY LOSE VALUE - NO BANK GUARANTEE


TABLE OF CONTENTS

RIVERSOURCE 120/20 CONTRARIAN EQUITY FUND                       3P
   THE FUND.................................................    3P
   Objective................................................    3p
   Principal Investment Strategies..........................    3p
   Principal Risks..........................................    4p
   Past Performance.........................................    8p
   Fees and Expenses........................................    9p
RIVERSOURCE 130/30 U.S. EQUITY FUND.........................   11P
   THE FUND.................................................   11P
   Objective................................................   11p
   Principal Investment Strategies..........................   11p
   Principal Risks..........................................   13p
   Past Performance.........................................   16p
   Fees and Expenses........................................   17p
Other Investment Strategies and Risks.......................   19p
Fund Management and Compensation............................   21p
BUYING AND SELLING SHARES...................................   S.1
Description of Share Classes................................   S.1
   Investment Options -- Classes of Shares..................   S.1
   Sales Charges............................................   S.4
   Opening an Account.......................................  S.10
Exchanging or Selling Shares................................  S.12
   Exchanges................................................  S.15
   Selling Shares...........................................  S.16
VALUING FUND SHARES.........................................  S.17
DISTRIBUTIONS AND TAXES.....................................  S.18
Dividends and Capital Gain Distributions....................  S.18
Reinvestments...............................................  S.18
Taxes.......................................................  S.19
GENERAL INFORMATION.........................................  S.20


2P RIVERSOURCE 120/20 CONTRARIAN EQUITY FUND -- RIVERSOURCE 130/30 U.S. EQUITY FUND -- 2007 PROSPECTUS

RIVERSOURCE 120/20 CONTRARIAN EQUITY FUND

THE FUND

OBJECTIVE

RiverSource 120/20 Contrarian Equity Fund (the Fund) seeks to provide shareholders with long-term growth of capital. Because any investment involves risk, there is no assurance this objective can be achieved. Only shareholders can change the Fund's objective.

PRINCIPAL INVESTMENT STRATEGIES

Under normal market conditions, at least 80% of the Fund's net assets (including any borrowings for investment purposes) are invested in equity securities. In pursuit of the Fund's objective, the investment manager (RiverSource Investments, LLC) will hold long positions and short positions. A long position is an ordinary purchase of a security. When the Fund takes a short position, it sells a security that it has borrowed in anticipation of a decline in the price of the security. To complete the short sale transaction, the Fund buys back the same security in the market and returns it to the lender. If the price of the security falls sufficiently, the Fund will make money. If it instead increases in price, the Fund will lose money. Up to 25% of the Fund's net assets may be invested in foreign investments. The Fund expects to maintain an approximate net 100% long asset exposure to the equity market (long market exposure minus short market exposure), targeting 110% to 120% long exposure and 10% to 20% short exposure. Actual exposure will vary over time based on factors such as market movements and the investment manager's assessment of market conditions. Based on these factors, the Fund's long exposure may range between 80% and 120%, and the Fund's short exposure may range between 0% and 20%. The Fund will provide shareholders with at least 60 days' notice of any change in the 80% policy.

When the Fund makes a short sale, the cash proceeds of the sale are pledged to the broker affecting the sale and held in a segregated account with the Fund's custodian in order to secure the Fund's obligation to cover the short position. However, the Fund may use all or a portion of the cash proceeds of short sales to purchase additional securities. When the Fund does this it is required to pledge other liquid securities it owns in order to meet its obligations with the broker.

In addition to individual stocks, the investment manager may use exchange traded funds (ETFs), and certain derivative instruments, including equity swaps, futures, options, forward contracts and structured notes. These instruments may be used by the Fund to obtain additional long or short exposure to a security (or basket of securities) or to hedge existing long or short positions.


RIVERSOURCE 120/20 CONTRARIAN EQUITY FUND -- RIVERSOURCE 130/30 U.S. EQUITY

FUND -- 2007 PROSPECTUS 3P


INVESTMENT PROCESS

The investment manager employs a "contrarian" investment process, selecting investments (long positions) by seeking to:

- Identify securities that are selling at low prices in relation to:

- investor sentiment;

- current and projected earnings;

- current and projected cash flow;

- current and projected dividends; and

- historic price levels.

- Identify companies with moderate growth potential based on:

- effective management, as demonstrated by overall performance; and

- financial strength.

- Identify companies with dividend-paying stocks.

In evaluating whether to sell a security, the investment manager considers, among other factors, whether:

- The security is overvalued relative to other potential investments.

- The security has reached the investment manager's price objective.

- The company has met the investment manager's earnings and/or growth expectations.

- The company or the security no longer meets the other standards described above.

The primary objective of the investment manager in selecting short positions is management of the potential additional risk introduced through the selection of the Fund's long positions. The Fund seeks to mitigate these potential additional risks through short sales of ETFs or through the use of derivative instruments. In evaluating whether to close out a short position, the investment manager considers changes in potential additional risks introduced by changes in the Fund's long positions, and gradual or unrelated changes in the market which may introduce new potential risks to the Fund. The Fund aims to maintain an overall market risk profile similar to the Russell 3000(R) Index.

PRINCIPAL RISKS

Please remember that with any mutual fund investment you may lose money. Principal risks associated with an investment in the Fund include:

ACTIVE MANAGEMENT RISK. The Fund is actively managed and its performance therefore will reflect in part the ability of the portfolio managers to select securities and to make investment decisions that are suited to achieving the Fund's investment objective. Due to its active management, the Fund could underperform other mutual funds with similar investment objectives.


4P RIVERSOURCE 120/20 CONTRARIAN EQUITY FUND -- RIVERSOURCE 130/30 U.S. EQUITY FUND -- 2007 PROSPECTUS

Because the Fund takes both long and short positions, there is the risk that the value of the securities held long might decrease and the value of the securities sold short might increase in response to activities of an individual company or in response to general market conditions. In this case, the Fund's potential losses could exceed those of other mutual funds that hold only long stock positions. There is no guarantee that the investment techniques and risk analyses employed by the investment manager will produce the desired results.

ISSUER RISK. An issuer may perform poorly, and therefore, the value of its stocks and bonds may decline. Poor performance may be caused by poor management decisions, competitive pressures, breakthroughs in technology, reliance on suppliers, labor problems or shortages, corporate restructurings, fraudulent disclosures, or other factors.

MARKET RISK. The market value of securities may fall or fail to rise. Market risk may affect a single issuer, sector of the economy, industry, or the market as a whole. The market value of securities may fluctuate, sometimes rapidly and unpredictably. This risk is generally greater for small and mid-sized companies, which tend to be more vulnerable to adverse developments. In addition, focus on a particular style, for example, investment in growth or value securities, may cause the Fund to underperform other mutual funds if that style falls out of favor with the market.

SHORT SELLING RISK. The Fund may make short sales, which involves selling a security the Fund does not own in anticipation that the security's price will decline. The Fund must borrow those securities to make delivery to the buyer. The Fund may not always be able to borrow a security it wants to sell short. The Fund will suffer a loss if it sells a security short and the value of the security rises rather than falls. It is possible that the Fund's long positions will decline in value at the same time that the value of its short positions increase, thereby increasing potential losses to the Fund. Short sales expose the Fund to the risk that it will be required to buy the security sold short (also known as "covering" the short position) at a time when the security has appreciated in value, thus resulting in a loss to the Fund. The Fund may also be required to close out a short position at a time when it might not otherwise choose, for example, if the lender of the security calls it back, which may have the effect of reducing or eliminating potential gain, or cause the Fund to realize a loss. Short positions introduce more risk to the Fund than long positions (purchases) because the maximum sustainable loss on a security purchased (held long) is limited to the amount paid for the security plus the transaction costs, whereas there is no maximum attainable price of the shorted security. Therefore, in theory, securities sold short have unlimited risk. Additionally, the Fund's use of short sales in effect "leverages" the Fund, as the Fund intends to use the cash proceeds from short sales to invest in additional long positions. This leverage effect potentially exposes the Fund to greater risks due to unanticipated market movements, which may magnify losses and increase the volatility of returns. See also Leverage Risk and Market Risk.


RIVERSOURCE 120/20 CONTRARIAN EQUITY FUND -- RIVERSOURCE 130/30 U.S. EQUITY

FUND -- 2007 PROSPECTUS 5P


In addition, the Fund will incur additional expenses by engaging in short sales in the form of transaction costs, and interest and dividend expenses paid to the lender of the security.

COUNTERPARTY RISK. The risk that a counterparty to a financial instrument entered into by the Fund or held by special purpose or structured vehicle becomes bankrupt or otherwise fails to perform its obligations due to financial difficulties. The Fund may experience significant delays in obtaining any recovery in a bankruptcy or other reorganization proceeding. The Fund may obtain only limited recovery or may obtain no recovery in such circumstances. The Fund will typically enter into financial instrument transactions with counterparties whose credit rating is investment grade, or, if unrated, determined to be of comparable quality by the investment manager.

LEVERAGE RISK. Leverage occurs when the Fund increases its assets available for investment using borrowings, short sales, derivatives, or similar instruments or techniques. Due to the fact that short sales involve borrowing securities and then selling them, the Fund's short sales effectively leverage the Fund's assets. The use of leverage may make any change in the Fund's net asset value ("NAV") even greater and thus result in increased volatility of returns. The Fund's assets that are used as collateral to secure the short sales may decrease in value while the short positions are outstanding, which may force the Fund to use its other assets to increase the collateral. Leverage can also create an interest expense that may lower the Fund's overall returns. Lastly, there is no guarantee that a leveraging strategy will be successful.

DERIVATIVES RISK. Derivatives are financial instruments that have a value which depends upon, or is derived from, the value of something else, such as one or more underlying securities, pools of securities, options, futures, indexes or currencies. Gains or losses involving derivative instruments may be substantial, because a relatively small price movement in the underlying security(ies), instrument, currency or index may result in a substantial gain or loss for the Fund. Derivative instruments in which the Fund invests will typically increase the Fund's exposure to Principal Risks to which it is otherwise exposed, and may expose the Fund to additional risks, including counterparty risk, leverage risk, hedging risk, correlation risk and liquidity risk.

Hedging risk is the risk that derivative instruments used to hedge against an opposite position may offset losses, but they may also offset gains.

Correlation risk is related to hedging risk and is the risk that there may be an incomplete correlation between the hedge and the opposite position, which may result in increased or unanticipated losses.


6P RIVERSOURCE 120/20 CONTRARIAN EQUITY FUND -- RIVERSOURCE 130/30 U.S. EQUITY FUND -- 2007 PROSPECTUS

Liquidity risk is the risk that the derivative instrument may be difficult or impossible to sell or terminate, which may cause the Fund to be in a position to do something the investment manager would not otherwise choose, including, accepting a lower price for the derivative instrument, selling other investments or foregoing another, more appealing investment opportunity.

Certain derivatives have the potential for unlimited losses, regardless of the size of the initial investment. See the Statement of Additional Information (SAI) for more information on derivative instruments and related risks.

ETF RISK. The price movement of an ETF may not track the underlying index and may result in a loss. In addition, shareholders bear both their proportionate share of the Fund's expenses and similar expenses incurred through ownership of the ETF.

FOREIGN RISK. The following are all components of foreign risk:

Country risk includes the political, economic, and other conditions of the country. These conditions include lack of publicly available information, less government oversight (including lack of accounting, auditing, and financial reporting standards), the possibility of government-imposed restrictions, and even the nationalization of assets. The liquidity of foreign investments may be more limited than for most U.S. investments, which means that, at times it may be difficult to sell foreign securities at desirable prices.

Currency risk results from the constantly changing exchange rate between local currency and the U.S. dollar. Whenever the Fund holds securities valued in a foreign currency or holds the currency, changes in the exchange rate add or subtract from the value of the investment.

Custody risk refers to the process of clearing and settling trades. It also covers holding securities with local agents and depositories. Low trading volumes and volatile prices in less developed markets make trades harder to complete and settle. Local agents are held only to the standard of care of the local market. Governments or trade groups may compel local agents to hold securities in designated depositories that are not subject to independent evaluation. The less developed a country's securities market is, the greater the likelihood of problems occurring.

SMALL AND MID-SIZED COMPANY RISK. Investments in small and mid-sized companies often involve greater risks than investments in larger, more established companies because small and mid-sized companies may lack the management experience, financial resources, product diversification, experience, and competitive strengths of larger companies. Additionally, in many instances the securities of small and mid-sized companies are traded only over-the-counter or on regional securities exchanges and the frequency and volume of their trading is substantially less and may be more volatile than is typical of larger companies.


RIVERSOURCE 120/20 CONTRARIAN EQUITY FUND -- RIVERSOURCE 130/30 U.S. EQUITY

FUND -- 2007 PROSPECTUS 7P


PAST PERFORMANCE

The Fund is new as of the date of this prospectus and therefore performance information is not available.

When available, the Fund intends to compare its performance to the performance of the Russell 3000(R) Index, an unmanaged index that measures the performance of the 3,000 largest U.S. companies based on total market capitalization, which represents approximately 98% of the investable U.S. equity market. The index reflects reinvestment of all distributions and changes in market prices. The Fund's performance will be measured against this index for purposes of determining the performance incentive adjustment. See "Fund Management and Compensation" for more information.


8P RIVERSOURCE 120/20 CONTRARIAN EQUITY FUND -- RIVERSOURCE 130/30 U.S. EQUITY FUND -- 2007 PROSPECTUS

FEES AND EXPENSES

Fund investors pay various expenses. The table below describes the fees and expenses that you may pay if you buy and hold shares of the Fund.

SHAREHOLDER FEES (FEES PAID DIRECTLY FROM YOUR INVESTMENT)

                                                                                 CLASS I
                                                CLASS A    CLASS B    CLASS C    CLASS R5
Maximum sales charge (load) imposed on
purchases
(as a percentage of offering price)              5.75%(a)   None       None         None
Maximum deferred sales charge (load) imposed
on sales (as a percentage of offering price
at time of purchase)                              None        5%         1%         None

ANNUAL FUND OPERATING EXPENSES (EXPENSES THAT ARE DEDUCTED FROM FUND ASSETS)

AS A PERCENTAGE OF AVERAGE DAILY NET ASSETS:
                                           CLASS A    CLASS B    CLASS C    CLASS I    CLASS R5
 Management fees(b)                         0.95%      0.95%      0.95%      0.95%      0.95%
 Distribution (12b-1) fees                  0.25%      1.00%      1.00%      0.00%      0.00%
 Other expenses(c)
  Dividend expenses on securities sold
 short(d)                                   0.35%      0.35%      0.35%      0.35%      0.35%
  Remainder of other expenses(e)            0.66%      0.66%      0.66%      0.59%      0.64%
 Total other expenses                       1.01%      1.01%      1.01%      0.94%      0.99%
 Total annual fund operating expenses       2.21%      2.96%      2.96%      1.89%      1.94%
 Fee waiver/expense reimbursement           0.36%      0.36%      0.36%      0.34%      0.34%
 Total annual (net) fund operating
 expenses(f)                                1.85%      2.60%      2.60%      1.55%      1.60%

(a) This charge may be reduced depending on the value of your total investments in RiverSource Funds. See "Sales Charges."
(b) The Fund's management fee may be increased or decreased due to the effect of a performance incentive adjustment. The index against which the Fund's performance will be measured for purposes of determining the performance incentive adjustment is the Russell 3000 Index. See "Fund Management and Compensation" for more information.
(c) Other expenses are based on estimated amounts for the current fiscal year.
(d) Dividends on short sales are the dividends paid to the lenders of the borrowed securities. The expenses relating to dividends on short sales will vary depending on whether the securities the Fund sells short pay dividends and on the size of any such dividends.

(e) Remainder of other expenses includes an administrative services fee, a transfer agency fee, a custody fee and other nonadvisory expenses. Other expenses may also include fees and expenses of affiliated and unaffiliated funds (acquired funds) which the Fund indirectly bears when it invests in the acquired funds. Because acquired funds will have varied expense and fee levels and the Fund may own different proportions of acquired funds at different times, the amount of fees and expenses incurred by the Fund with respect to such investments will vary.

(f) The investment manager and its affiliates have contractually agreed to waive certain fees and to absorb certain expenses until Sept. 30, 2008, unless sooner terminated at the discretion of the Fund's Board. Any amounts waived will not be reimbursed by the Fund. Under this agreement, net Fund expenses (excluding foreign transaction taxes, income paid to brokers related to securities lending program, dividend expenses on securities sold short, transaction or brokerage fees, fees and expenses associated with investment in other pooled investment vehicles, including exchange traded funds and other affiliated and unaffiliated mutual funds (acquired funds), and certain other expenses as may be approved by the Funds' Board of Trustees), before giving effect to any performance incentive adjustment, will not exceed 1.50% for Class A, 2.25% for Class B, 2.25% for Class C, 1.20% for Class I and 1.25% for Class R5.


RIVERSOURCE 120/20 CONTRARIAN EQUITY FUND -- RIVERSOURCE 130/30 U.S. EQUITY

FUND -- 2007 PROSPECTUS 9P


EXAMPLES

These examples are intended to help you compare the cost of investing in the Fund with the cost of investing in other mutual funds.

These examples assume 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. These examples also assume that your investment has a 5% return each year and that the Fund's operating expenses remain the same. Although your actual costs may be higher or lower, based on these assumptions your costs would be:

                                                                1 YEAR      3 YEARS
Class A(a)                                                       $752       $1,194
Class B                                                          $763(b)    $1,282(b)
Class C                                                          $363(b)    $  882
Class I                                                          $158       $  561
Class R5                                                         $163       $  577

(a) Includes a 5.75% sales charge.
(b) Includes the applicable CDSC.

You would pay the following expenses if you did not redeem your shares:

                                                                1 YEAR      3 YEARS
Class A(a)                                                       $752       $1,194
Class B                                                          $263       $  882
Class C                                                          $263       $  882
Class I                                                          $158       $  561
Class R5                                                         $163       $  577

(a) Includes a 5.75% sales charge.


10P RIVERSOURCE 120/20 CONTRARIAN EQUITY FUND -- RIVERSOURCE 130/30 U.S. EQUITY FUND -- 2007 PROSPECTUS

RIVERSOURCE 130/30 U.S. EQUITY FUND

THE FUND

OBJECTIVE

RiverSource 130/30 U.S. Equity Fund (the Fund) seeks to provide shareholders with long-term growth of capital. Because any investment involves risk, there is no assurance this objective can be achieved. Only shareholders can change the Fund's objective.

PRINCIPAL INVESTMENT STRATEGIES

Under normal market conditions, at least 80% of the Fund's net assets (including any borrowings for investment purposes) are invested in equity securities of U.S. companies. In pursuit of the Fund's objective, the investment manager (RiverSource Investments, LLC) will hold long and short positions in both growth and value companies, and at times may favor growth or value based on available opportunities. A long position is an ordinary purchase of a security. When the Fund takes a short position, it sells a security that it has borrowed in anticipation of a decline in the price of the security. To complete the short sale transaction, the Fund buys back the same security in the market and returns it to the lender. If the price of the security falls sufficiently, the Fund will make money. If it instead increases in price, the Fund will lose money. Up to 25% of the Fund's net assets may be invested in foreign investments. The Fund expects to maintain an approximate net 100% long asset exposure to the equity market (long market exposure minus short market exposure), targeting 130% long exposure and 30% short exposure, however, actual exposure will vary over time based on factors such as market movements and the investment manager's assessment of market conditions. Based on these factors, the Fund's long exposure may range between 80% and 140%, and the Fund's short exposure may range between 0% and 40%. The Fund will provide shareholders with at least 60 days' notice of any change in the 80% policy.

When the Fund makes a short sale, the cash proceeds of the sale are pledged to the broker affecting the sale and held in a segregated account with the Fund's custodian in order to secure the Fund's obligation to cover the short position. However, the Fund may use all or a portion of the cash proceeds of short sales to purchase additional securities. When the Fund does this it is required to pledge other liquid securities it owns in order to meet its obligations with the broker.

In addition to individual stocks, the investment manager may use exchange traded funds (ETFs), and certain derivative instruments, including equity swaps, futures, options, forward contracts and structured notes. These instruments may be used by the Fund to obtain additional long or short exposure to a security (or basket of securities) or to hedge existing long or short positions.


RIVERSOURCE 120/20 CONTRARIAN EQUITY FUND -- RIVERSOURCE 130/30 U.S. EQUITY

FUND -- 2007 PROSPECTUS 11P


INVESTMENT PROCESS

The investment manager employs separate qualitative processes in optimizing for growth and value, seeking to identify securities that offer the greatest promise for out-performance (long positions) and securities with the greatest promise for underperformance (short positions). When optimizing for growth, the investment manager invests in companies it believes to have above-average long-term growth potential, or technological superiority, and sells short companies it believes are experiencing or will experience negative changes that will cause their stock prices to fall. The investment manager selects these companies based, among other factors, on its relative consideration of:

- Effectiveness of management.

- Financial strength.

- Competitive market or product position.

- Technological advantage (or disadvantage) relative to other companies.

When optimizing for value, the investment manager invests in companies that appear to be undervalued by various measures or that may be temporarily out of favor, but that are believed to have good prospects for capital appreciation, and sells short companies it believes are experiencing or will experience negative changes that will cause their stock prices to fall. The investment manager selects these companies based, among other factors, on its relative consideration of:

- The stability, anticipated stability, or prospects for improvement of underlying fundamentals of a company.

- Whether a company is undervalued (overvalued), based on consideration of certain empirical evidence such as:

- One or more of the company's ratios, such as price-to-earnings or price-to- cash flow, is low (high) relative to the general market, or has a yield that exceeds (trails) the market;

- One or more of the company's valuation ratios is low (high) relative to historical levels for the stock;

- One or more of the company's valuation ratios or other financial measures make that stock attractive (unattractive) relative to its peers; or

- The relative intrinsic value of the company, as identified by the investment manager, suggests the company is not properly valued.

The investment manager may sell a long position or close out a short position for several reasons, such as to secure gains (security has reached the investment manager's price objective and/or earnings or growth expectations), limit losses (minimize potential losses due to unanticipated market movement) or redeploy assets into opportunities believed to be more promising than others.


12P RIVERSOURCE 120/20 CONTRARIAN EQUITY FUND -- RIVERSOURCE 130/30 U.S. EQUITY FUND -- 2007 PROSPECTUS

In addition to selling securities short that the investment manager believes have the greatest promise for underperformance, the investment manager may also establish short positions in an effort to mitigate potential additional risks introduced through the selection of the Fund's active long and short positions, or through evolutionary or unrelated changes in the market which may introduce new potential risks to the Fund.

PRINCIPAL RISKS

Please remember that with any mutual fund investment you may lose money. Principal risks associated with an investment in the Fund include:

ACTIVE MANAGEMENT RISK. The Fund is actively managed and its performance therefore will reflect in part the ability of the portfolio managers to select securities and to make investment decisions that are suited to achieving the Fund's investment objective. Due to its active management, the Fund could underperform other mutual funds with similar investment objectives.

Because the Fund takes both long and short positions, there is the risk that the value of the securities held long might decrease and the value of the securities sold short might increase in response to activities of an individual company or in response to general market conditions. In this case, the Fund's potential losses could exceed those of other mutual funds that hold only long stock positions. There is no guarantee that the investment techniques and risk analyses employed by the investment manager will produce the desired results.

ISSUER RISK. An issuer may perform poorly, and therefore, the value of its stocks and bonds may decline. Poor performance may be caused by poor management decisions, competitive pressures, breakthroughs in technology, reliance on suppliers, labor problems or shortages, corporate restructurings, fraudulent disclosures, or other factors.

MARKET RISK. The market value of securities may fall or fail to rise. Market risk may affect a single issuer, sector of the economy, industry, or the market as a whole. The market value of securities may fluctuate, sometimes rapidly and unpredictably. This risk is generally greater for small and mid-sized companies, which tend to be more vulnerable to adverse developments. In addition, focus on a particular style, for example, investment in growth or value securities, may cause the Fund to underperform other mutual funds if that style falls out of favor with the market.


RIVERSOURCE 120/20 CONTRARIAN EQUITY FUND -- RIVERSOURCE 130/30 U.S. EQUITY

FUND -- 2007 PROSPECTUS 13P


SHORT SELLING RISK. The Fund may make short sales, which involves selling a security the Fund does not own in anticipation that the security's price will decline. The Fund must borrow those securities to make delivery to the buyer. The Fund may not always be able to borrow a security it wants to sell short. The Fund will suffer a loss if it sells a security short and the value of the security rises rather than falls. It is possible that the Fund's long positions will decline in value at the same time that the value of its short positions increase, thereby increasing potential losses to the Fund. Short sales expose the Fund to the risk that it will be required to buy the security sold short (also known as "covering" the short position) at a time when the security has appreciated in value, thus resulting in a loss to the Fund. The Fund may also be required to close out a short position at a time when it might not otherwise choose, for example, if the lender of the security calls it back, which may have the effect of reducing or eliminating potential gain, or cause the Fund to realize a loss. Short positions introduce more risk to the Fund than long positions (purchases) because the maximum sustainable loss on a security purchased (held long) is limited to the amount paid for the security plus the transaction costs, whereas there is no maximum attainable price of the shorted security. Therefore, in theory, securities sold short have unlimited risk. Additionally, the Fund's use of short sales in effect "leverages" the Fund, as the Fund intends to use the cash proceeds from short sales to invest in additional long positions. This leverage effect potentially exposes the Fund to greater risks due to unanticipated market movements, which may magnify losses and increase the volatility of returns. See also Leverage Risk and Market Risk.

In addition, the Fund will incur additional expenses by engaging in short sales in the form of transaction costs, and interest and dividend expenses paid to the lender of the security.

COUNTERPARTY RISK. The risk that a counterparty to a financial instrument entered into by the Fund or held by special purpose or structured vehicle becomes bankrupt or otherwise fails to perform its obligations due to financial difficulties. The Fund may experience significant delays in obtaining any recovery in a bankruptcy or other reorganization proceeding. The Fund may obtain only limited recovery or may obtain no recovery in such circumstances. The Fund will typically enter into financial instrument transactions with counterparties whose credit rating is investment grade, or, if unrated, determined to be of comparable quality by the investment manager.


14P RIVERSOURCE 120/20 CONTRARIAN EQUITY FUND -- RIVERSOURCE 130/30 U.S. EQUITY FUND -- 2007 PROSPECTUS

LEVERAGE RISK. Leverage occurs when the Fund increases its assets available for investment using borrowings, short sales, derivatives, or similar instruments or techniques. Due to the fact that short sales involve borrowing securities and then selling them, the Fund's short sales effectively leverage the Fund's assets. The use of leverage may make any change in the Fund's net asset value ("NAV") even greater and thus result in increased volatility of returns. The Fund's assets that are used as collateral to secure the short sales may decrease in value while the short positions are outstanding, which may force the Fund to use its other assets to increase the collateral. Leverage can also create an interest expense that may lower the Fund's overall returns. Lastly, there is no guarantee that a leveraging strategy will be successful.

DERIVATIVES RISK. Derivatives are financial instruments that have a value which depends upon, or is derived from, the value of something else, such as one or more underlying securities, pools of securities, options, futures, indexes or currencies. Gains or losses involving derivative instruments may be substantial, because a relatively small price movement in the underlying security(ies), instrument, currency or index may result in a substantial gain or loss for the Fund. Derivative instruments in which the Fund invests will typically increase the Fund's exposure to Principal Risks to which it is otherwise exposed, and may expose the Fund to additional risks, including counterparty risk, leverage risk, hedging risk, correlation risk and liquidity risk.

Hedging risk is the risk that derivative instruments used to hedge against an opposite position may offset losses, but they may also offset gains.

Correlation risk is related to hedging risk and is the risk that there may be an incomplete correlation between the hedge and the opposite position, which may result in increased or unanticipated losses.

Liquidity risk is the risk that the derivative instrument may be difficult or impossible to sell or terminate, which may cause the Fund to be in a position to do something the investment manager would not otherwise choose, including, accepting a lower price for the derivative instrument, selling other investments or foregoing another, more appealing investment opportunity.

Certain derivatives have the potential for unlimited losses, regardless of the size of the initial investment. See the SAI for more information on derivative instruments and related risks.

ETF RISK. The price movement of an ETF may not track the underlying index and may result in a loss. In addition, shareholders bear both their proportionate share of the Fund's expenses and similar expenses incurred through ownership of the ETF.


RIVERSOURCE 120/20 CONTRARIAN EQUITY FUND -- RIVERSOURCE 130/30 U.S. EQUITY

FUND -- 2007 PROSPECTUS 15P


FOREIGN RISK. The following are all components of foreign risk:

Country risk includes the political, economic, and other conditions of the country. These conditions include lack of publicly available information, less government oversight (including lack of accounting, auditing, and financial reporting standards), the possibility of government-imposed restrictions, and even the nationalization of assets. The liquidity of foreign investments may be more limited than for most U.S. investments, which means that, at times it may be difficult to sell foreign securities at desirable prices.

Currency risk results from the constantly changing exchange rate between local currency and the U.S. dollar. Whenever the Fund holds securities valued in a foreign currency or holds the currency, changes in the exchange rate add or subtract from the value of the investment.

Custody risk refers to the process of clearing and settling trades. It also covers holding securities with local agents and depositories. Low trading volumes and volatile prices in less developed markets make trades harder to complete and settle. Local agents are held only to the standard of care of the local market. Governments or trade groups may compel local agents to hold securities in designated depositories that are not subject to independent evaluation. The less developed a country's securities market is, the greater the likelihood of problems occurring.

SMALL AND MID-SIZED COMPANY RISK. Investments in small and mid-sized companies often involve greater risks than investments in larger, more established companies because small and mid-sized companies may lack the management experience, financial resources, product diversification, experience, and competitive strengths of larger companies. Additionally, in many instances the securities of small and mid-sized companies are traded only over-the-counter or on regional securities exchanges and the frequency and volume of their trading is substantially less and may be more volatile than is typical of larger companies.

PAST PERFORMANCE

The Fund is new as of the date of this prospectus and therefore performance information is not available.

When available, the Fund intends to compare its performance to the performance of the Russell 1000(R) Index, an unmanaged index that measures the performance of the 1,000 largest companies in the Russell 3000 Index, which represents approximately 90% of the total market capitalization of the Russell 3000 Index. The index reflects reinvestment of all distributions and changes in market prices. The Fund's performance will be measured against this index for purposes of determining the performance incentive adjustment. See "Fund Management and Compensation" for more information.


16P RIVERSOURCE 120/20 CONTRARIAN EQUITY FUND -- RIVERSOURCE 130/30 U.S. EQUITY FUND -- 2007 PROSPECTUS

FEES AND EXPENSES

Fund investors pay various expenses. The table below describes the fees and expenses that you may pay if you buy and hold shares of the Fund.

SHAREHOLDER FEES (FEES PAID DIRECTLY FROM YOUR INVESTMENT)

                                                                                   CLASS I
                                                  CLASS A    CLASS B    CLASS C    CLASS R5
Maximum sales charge (load) imposed on
purchases
(as a percentage of offering price)                5.75%(a)   None       None        None
Maximum deferred sales charge (load) imposed
on sales
(as a percentage of offering price at time of
purchase)                                           None        5%         1%        None

ANNUAL FUND OPERATING EXPENSES (EXPENSES THAT ARE DEDUCTED FROM FUND ASSETS)

AS A PERCENTAGE OF AVERAGE DAILY NET ASSETS:
                                           CLASS A    CLASS B    CLASS C    CLASS I    CLASS R5
 Management fees(b)                         0.95%      0.95%      0.95%      0.95%      0.95%
 Distribution (12b-1) fees                  0.25%      1.00%      1.00%      0.00%      0.00%
 Other expenses(c)
  Dividend expenses on securities sold
 short(d)                                   0.54%      0.54%      0.54%      0.54%      0.54%
  Remainder of other expenses(e)            0.66%      0.66%      0.66%      0.59%      0.64%
 Total other expenses                       1.20%      1.20%      1.20%      1.13%      1.18%
 Total annual fund operating expenses       2.40%      3.15%      3.15%      2.08%      2.13%
 Fee waiver/expense reimbursement           0.36%      0.36%      0.36%      0.34%      0.34%
 Total annual (net) fund operating
 expenses(f)                                2.04%      2.79%      2.79%      1.74%      1.79%

(a) This charge may be reduced depending on the value of your total investments in RiverSource Funds. See "Sales Charges."
(b) The Fund's management fee may be increased or decreased due to the effect of a performance incentive adjustment. The index against which the Fund's performance will be measured for purposes of determining the performance incentive adjustment is the Russell 1000 Index. See "Fund Management and Compensation" for more information.

(c) Other expenses are based on estimated amounts for the current fiscal year.

(d) Dividends on short sales are the dividends paid to the lenders of the borrowed securities. The expenses relating to dividends on short sales will vary depending on whether the securities the Fund sells short pay dividends and on the size of any such dividends.

(e) Remainder of other expenses includes an administrative services fee, a transfer agency fee, a custody fee and other nonadvisory expenses. Other expenses may also include fees and expenses of affiliated and unaffiliated funds (acquired funds) which the Fund indirectly bears when it invests in the acquired funds. Because acquired funds will have varied expense and fee levels and the Fund may own different proportions of acquired funds at different times, the amount of fees and expenses incurred by the Fund with respect to such investments will vary.

(f) The investment manager and its affiliates have contractually agreed to waive certain fees and to absorb certain expenses until Sept. 30, 2008, unless sooner terminated at the discretion of the Fund's Board. Any amounts waived will not be reimbursed by the Fund. Under this agreement, net Fund expenses (excluding foreign transaction taxes, income paid to brokers related to securities lending program, dividend expenses on securities sold short, transaction or brokerage fees, fees and expenses associated with investment in other pooled investment vehicles, including exchange traded funds and other affiliated and unaffiliated mutual funds (acquired funds), and certain other expenses as may be approved by the Funds' Board of Trustees), before giving effect to any performance incentive adjustment, will not exceed 1.50% for Class A, 2.25% for Class B, 2.25% for Class C, 1.20% for Class I and 1.25% for Class R5.


RIVERSOURCE 120/20 CONTRARIAN EQUITY FUND -- RIVERSOURCE 130/30 U.S. EQUITY

FUND -- 2007 PROSPECTUS 17P


EXAMPLES

These examples are intended to help you compare the cost of investing in the Fund with the cost of investing in other mutual funds.

These examples assume 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. These examples also assume that your investment has a 5% return each year and that the Fund's operating expenses remain the same. Although your actual costs may be higher or lower, based on these assumptions your costs would be:

                                                               1 YEAR      3 YEARS
Class A(a)                                                     $  770      $1,248
Class B                                                        $  782(b)   $1,338(b)
Class C                                                        $  382(b)   $  938
Class I                                                        $  177      $  619
Class R5                                                       $  182      $  635

(a) Includes a 5.75% sales charge.
(b) Includes the applicable CDSC.

You would pay the following expenses if you did not redeem your shares:

                                                                1 YEAR      3 YEARS
Class A(a)                                                       $770       $1,248
Class B                                                          $282       $  938
Class C                                                          $282       $  938
Class I                                                          $177       $  619
Class R5                                                         $182       $  635

(a) Includes a 5.75% sales charge.


18P RIVERSOURCE 120/20 CONTRARIAN EQUITY FUND -- RIVERSOURCE 130/30 U.S. EQUITY FUND -- 2007 PROSPECTUS

REFERENCES TO THE "FUND" THROUGHOUT THE REMAINDER OF THE PROSPECTUS REFER TO RIVERSOURCE 120/20 CONTRARIAN EQUITY FUND AND RIVERSOURCE 130/30 U.S. EQUITY FUND, SINGULARLY OR COLLECTIVELY AS THE CONTEXT REQUIRES.

OTHER INVESTMENT STRATEGIES AND RISKS

Other Investment Strategies. In addition to the principal investment strategies previously described, the Fund may utilize investment strategies that are not principal investment strategies. For more information on strategies and holdings, and the risks of such strategies, including derivative instruments that the Fund may use, see the Fund's SAI.

Unusual Market Conditions. During unusual market conditions, the Fund may temporarily invest more of its assets in money market securities than during normal market conditions. Although investing in these securities would serve primarily to attempt to avoid losses, this type of investing also could prevent the Fund from achieving its investment objective. During these times, the portfolio managers may make frequent securities trades that could result in increased fees, expenses and taxes, and decreased performance. Instead of investing in money market securities directly, the Fund may invest in shares of an affiliated money market fund. See "Cash Reserves" for more information.

Securities Transaction Commissions. Securities transactions involve the payment by the Fund of brokerage commissions to broker-dealers, on occasion as compensation for research or brokerage services (commonly referred to as "soft dollars"), as the portfolio managers buy and sell securities for the Fund in pursuit of its objective. A description of the policies governing the Fund's securities transactions and the dollar value of brokerage commissions paid by the Fund are set forth in the SAI. The brokerage commissions set forth in the SAI do not include implied commissions or mark-ups (implied commissions) paid by the Fund for principal transactions (transactions made directly with a dealer or other counterparty), including most fixed income securities (and certain other instruments, including derivatives). Brokerage commissions do not reflect other elements of transaction costs, including the extent to which the Fund's purchase and sale transactions may cause the market to move and change the market price for an investment.

Although brokerage commissions and implied commissions are not reflected in the expense table under "Fees and Expenses," they are reflected in the total return of the Fund.


RIVERSOURCE 120/20 CONTRARIAN EQUITY FUND -- RIVERSOURCE 130/30 U.S. EQUITY

FUND -- 2007 PROSPECTUS 19P


Portfolio Turnover. Trading of securities may produce capital gains, which are taxable to shareholders when distributed. Active trading may also increase the amount of brokerage commissions paid or mark-ups to broker-dealers that the Fund pays when it buys and sells securities. Capital gains and increased brokerage commissions or mark-ups paid to broker-dealers may adversely affect a fund's performance.

Directed Brokerage. The Fund's Board of Trustees (Board) has adopted a policy prohibiting the investment manager, or any subadviser, from considering sales of shares of the Fund as a factor in the selection of broker-dealers through which to execute securities transactions.

Additional information regarding securities transactions can be found in the
SAI.


20P RIVERSOURCE 120/20 CONTRARIAN EQUITY FUND -- RIVERSOURCE 130/30 U.S. EQUITY FUND -- 2007 PROSPECTUS

FUND MANAGEMENT AND COMPENSATION

INVESTMENT MANAGER

RiverSource Investments, LLC (the investment manager or RiverSource Investments), 200 Ameriprise Financial Center, Minneapolis, Minnesota 55474, is the investment manager to the RiverSource funds, and is a wholly-owned subsidiary of Ameriprise Financial, Inc. (Ameriprise Financial). Ameriprise Financial is a financial planning and financial services company that has been offering solutions for clients' asset accumulation, income management and protection needs for more than 110 years. In addition to managing investments for all of the RiverSource funds, RiverSource Investments manages investments for itself and its affiliates. For institutional clients, RiverSource Investments and its affiliates provide investment management and related services, such as separate account asset management, and institutional trust and custody, as well as other investment products. For all of its clients, RiverSource Investments seeks to allocate investment opportunities in an equitable manner over time. See the SAI for more information.

The Fund pays RiverSource Investments a fee for managing its assets. Under the Investment Management Services Agreement (Agreement), the fee is 0.95% of the Fund's average daily net assets on the first $0.25 billion, gradually reducing to 0.89% as assets increase, subject to a possible adjustment under the terms of a performance incentive adjustment. The adjustment is computed by comparing the Fund's performance to the performance of the Russell 3000 Index for RiverSource 120/20 Contrarian Equity Fund and the Russell 1000 Index for the RiverSource 130/30 U.S. Equity Fund. In certain circumstances, the Fund's Board may approve a change in the index without shareholder approval. The maximum adjustment (increase or decrease) is 0.50% of the Fund's average net assets on an annual basis. Under the Agreement, the Fund also pays taxes, brokerage commissions, and nonadvisory expenses. A discussion regarding the basis for the Board approving the Agreement will be available in the Fund's annual or semiannual report to shareholders.

Portfolio Manager(s). The portfolio managers responsible for the day-to-day management of the Fund are:

RIVERSOURCE 120/20 CONTRARIAN EQUITY FUND

Warren Spitz, Senior Portfolio Manager

- Managed the Fund since 2007.

- Joined RiverSource Investments in 2000 as a Senior Portfolio Manager.

- Portfolio Manager, Prudential Global Asset Management, 1987 to 2000.


RIVERSOURCE 120/20 CONTRARIAN EQUITY FUND -- RIVERSOURCE 130/30 U.S. EQUITY

FUND -- 2007 PROSPECTUS 21P


- Began investment career in 1984.

- MBA, Wharton School, University of Pennsylvania.

Steve Schroll, Portfolio Manager

- Managed the Fund since 2007.

- Joined RiverSource Investments in 1998 as a Senior Security Analyst.

- Senior Equity Analyst, Piper Jaffray, 1988 to 1998; Equity Analyst, First Asset Management, 1985 to 1988; Equity Analyst, Dain Rauscher, 1981 to 1985.

- Began investment career in 1981.

- MBA, University of Minnesota.

Laton Spahr, CFA, Portfolio Manager

- Managed the Fund since 2007.

- Joined RiverSource Investments in 2001 as a Security Analyst.

- Sector Analyst, Holland Capital Management, 2000 to 2001; Statistical Research Intern, Friess Associates, 1998 to 1999.

- Began investment career in 1998.

- MS, University of Wisconsin, Applied Security Analysis Program.

Paul Stocking, Portfolio Manager

- Managed the Fund since 2007.

- Joined RiverSource Investments in 1995 as a Senior Equity Analyst.

- Vice President, JP Morgan Securities, 1987 to 1995; Investment Banking.

- Began investment career in 1987.

- MBA, University of Chicago.

RIVERSOURCE 130/30 U.S. EQUITY FUND

Robert Ewing, CFA, Portfolio Manager

- Managed the Fund since 2007.

- Joined RiverSource Investments in 2002.

- Prior to that, Analyst and Portfolio Manager at Fidelity Investments from 1990 to 2002.

- Began investment career in 1988.

- BS, Boston College Carroll School of Management.

Nick Thakore, Portfolio Manager

- Managed the Fund since 2007.

- Joined RiverSource Investments in 2002.

- Prior to that, Analyst and Portfolio Manager at Fidelity Investments from 1993 to 2002.


22P RIVERSOURCE 120/20 CONTRARIAN EQUITY FUND -- RIVERSOURCE 130/30 U.S. EQUITY FUND -- 2007 PROSPECTUS

- Began investment career in 1993.

- MBA, Wharton School at University of Pennsylvania.

Messrs. Ewing and Thakore are responsible for the direct, day-to-day management of the Fund, constructing a portfolio of long and short positions based on investment processes designed to identify the best value and growth opportunities. In making investment decisions for the portfolio, they draw from their own ideas as well as those from a team of research analysts they oversee who support the investment processes by contributing both long and short investment ideas for potential implementation in the portfolio.

The SAI provides additional information about portfolio manager compensation, management of other accounts and ownership of shares in the Fund.


RIVERSOURCE 120/20 CONTRARIAN EQUITY FUND -- RIVERSOURCE 130/30 U.S. EQUITY

FUND -- 2007 PROSPECTUS 23P


BUYING AND SELLING SHARES

The RiverSource funds are available through broker-dealers, certain 401(k) or other qualified and nonqualified plans, banks, or other financial intermediaries or institutions (financial institutions). THESE FINANCIAL INSTITUTIONS MAY CHARGE YOU ADDITIONAL FEES FOR THE SERVICES THEY PROVIDE AND THEY MAY HAVE DIFFERENT POLICIES NOT DESCRIBED IN THIS PROSPECTUS. Some policy differences may include different minimum investment amounts, exchange privileges, fund choices and cutoff times for investments. Additionally, recordkeeping, transaction processing and payments of distributions relating to your account may be performed by the financial institutions through which shares are held. Since the fund may not have a record of your transactions, you should always contact the financial institution through which you purchased the fund to make changes to or give instructions concerning your account or to obtain information about your account. The fund, the distributor and the transfer agent are not responsible for the failure of one of these financial institutions to carry out its obligations to its customers.

DESCRIPTION OF SHARE CLASSES

INVESTMENT OPTIONS -- CLASSES OF SHARES

The RiverSource funds offer different classes of shares. There are differences among the fees and expenses for each class. See the "Fees and Expenses" table for more information. Not everyone is eligible to buy every class. After determining which classes you are eligible to buy, decide which class best suits your needs. Your financial institution can help you with this decision. The following table shows the key features of each class. (The cover of this prospectus indicates which classes are currently offered for this Fund.)

INVESTMENT OPTIONS SUMMARY

See the "Fees and Expenses" table to determine which classes are offered by this fund.

                                                  CONTINGENT                                   PLAN
                               INITIAL            DEFERRED SALES             DISTRIBUTION AND  ADMINISTRATION
           AVAILABILITY        SALES CHARGE       CHARGE (CDSC)              SERVICE FEE(A)    FEE
-------------------------------------------------------------------------------------------------------------
Class A    Available to        Yes. Payable at    No.                        Yes.              No.
           all investors.      time of purchase.                             0.25%
                               Lower sales
                               charge for larger
                               investments.
-------------------------------------------------------------------------------------------------------------
Class      Available to        No. Entire         Maximum 5% CDSC during     Yes.              No.
  B(b)     all investors.      purchase price is  the first year decreasing  1.00%
                               invested in        to 0% after six years.
                               shares of the
                               fund.
-------------------------------------------------------------------------------------------------------------


S-6400-1 S.1


INVESTMENT OPTIONS SUMMARY (CONTINUED)
                                                  CONTINGENT                                   PLAN
                               INITIAL            DEFERRED SALES             DISTRIBUTION AND  ADMINISTRATION
           AVAILABILITY        SALES CHARGE       CHARGE (CDSC)              SERVICE FEE(A)    FEE
-------------------------------------------------------------------------------------------------------------
Class C    Available to        No. Entire         1% CDSC may apply if you   Yes.              No.
           all investors.      purchase price is  sell shares within one     1.00%
                               invested in        year after purchase.
                               shares of the
                               fund.
-------------------------------------------------------------------------------------------------------------
Class I    Limited to          No.                No.                        No.               No.
           qualifying
           institutional
           investors.
-------------------------------------------------------------------------------------------------------------
Class R5   Limited to          No.                No.                        No.               No.
           qualifying
           institutional
           investors.
-------------------------------------------------------------------------------------------------------------

(a) For Class A, Class B and Class C shares, each fund has adopted a plan under Rule 12b-1 of the Investment Company Act of 1940, as amended, that allows it to pay distribution and shareholder servicing-related expenses for the sale of shares. Because these fees are paid out of a fund's assets on an on-going basis, over time these fees will increase the cost of your investment and may cost you more than paying other types of distribution
(sales) or servicing charges.
(b) See "Buying and Selling Shares, Sales Charges, Class B and Class C -- contingent deferred sales charge alternative" for more information on the timing of conversion of Class B shares to Class A shares. Timing will vary depending on the date of your original purchase of the Class B shares.

DISTRIBUTION AND SERVICE FEES

The distribution and shareholder servicing fees for Class A, Class B and Class C are subject to the requirements of Rule 12b-1 under the Investment Company Act of 1940, as amended, and are used to reimburse the distributor for certain expenses it incurs in connection with distributing a fund's shares and providing services to fund shareholders. These expenses include payment of distribution and shareholder servicing fees to financial institutions that sell shares of the fund, up to 0.25% of the average daily net assets of Class A, Class B and Class C shares sold and held through them. For Class A and Class B shares, the distributor begins to pay these fees immediately after purchase. For Class C shares, the distributor begins to pay these fees one year after purchase. Financial institutions also receive distribution fees up to 0.75% of the average daily net assets of Class C shares sold and held through them, which the distributor begins to pay one year after purchase. For Class B shares, and, for the first year after sale only, for Class C shares, the fund's distributor retains the distribution fee of up to 0.75% in order to finance the payment of sales commissions to financial institutions that sell Class B shares, and to pay for other distribution related expenses. Financial institutions may compensate their financial advisors with the shareholder servicing and distribution fees paid to them by the distributor.


S.2


DETERMINING WHICH CLASS OF SHARES TO PURCHASE

CLASS A, CLASS B AND CLASS C SHARES

If your investments in RiverSource funds total $100,000 or more, Class A shares may be the better option because the sales charge is reduced for larger purchases.

If you invest less than $100,000, consider how long you plan to hold your shares. Class B shares have a higher annual distribution fee than Class A shares and a CDSC for six years. Class B shares convert to Class A shares in the ninth year of ownership. Class B shares purchased through reinvested dividends and distributions also will convert to Class A shares in the same proportion as the other Class B shares.

Class C shares also have a higher annual distribution fee than Class A shares. Class C shares have no sales charge if you hold the shares for longer than one year. Unlike Class B shares, Class C shares do not convert to Class A. As a result, you will pay a distribution fee for as long as you hold Class C shares. If you choose a deferred sales charge option (Class B or Class C), you should consider the length of time you intend to hold your shares. To help you determine which investment is best for you, consult your financial institution.

CLASS I SHARES.

The following eligible investors may purchase Class I shares:

- Any fund distributed by RiverSource Distributors, Inc. and Ameriprise Financial Services, if the fund seeks to achieve its investment objective by investing primarily in shares of the fund and other RiverSource funds.

Class I shares may be purchased, sold or exchanged only through the distributor or an authorized financial institution.

CLASS R5 SHARES.

The following eligible institutional investors may purchase Class R5 shares:

- Qualified employee benefit plans.

- Trust companies or similar institutions, and charitable organizations that meet the definition in Section 501(c)(3) of the Internal Revenue Code.

- Non-qualified deferred compensation plans whose participants are included in a qualified employee benefit plan described above.

- State sponsored college savings plans established under Section 529 of the Internal Revenue Code.

- Health Savings Accounts (HSAs) created pursuant to public law 108-173.

Additionally, the following eligible investors may purchase Class R5 shares:

- Institutional or corporate accounts above a threshold established by the distributor (currently $1 million per fund or $10 million in all RiverSource funds).

- Bank Trusts departments.


S.3

Class R5 shares generally are not available to retail non-retirement accounts, traditional and Roth IRAs, Coverdell Educational Savings Accounts, SEPs, SAR- SEPs, SIMPLE IRAs and individual 403(b) plans.

- Class R5 shares may be purchased, sold or exchanged only through the distributor or an authorized financial institution.

IN ADDITION, FOR CLASS I AND CLASS R5 SHARES, THE FUND OR THE DISTRIBUTOR, EACH IN ITS SOLE DISCRETION, MAY ACCEPT INVESTMENTS FROM OTHER PURCHASERS NOT LISTED ABOVE.

For more information, see the SAI.

SALES CHARGES

CLASS A -- INITIAL SALES CHARGE ALTERNATIVE

Your purchase price for Class A shares is generally the net asset value (NAV) plus a front-end sales charge. The distributor receives the sales charge and re-allows a portion of the sales charge to the financial institution through which you purchased the shares. The distributor retains the balance of the sales charge. Sales charges vary depending on the amount of your purchase.

SALES CHARGE* FOR CLASS A SHARES:

                                                                           MAXIMUM
                                 AS A % OF         AS A % OF NET     RE-ALLOWANCE AS A %
TOTAL MARKET VALUE            PURCHASE PRICE**    AMOUNT INVESTED     OF PURCHASE PRICE
----------------------------------------------------------------------------------------
 Up to $49,999                      5.75%               6.10%                5.00%
 $50,000 -- $99,999                 4.75                4.99                 4.00
 $100,000 -- $249,999               3.50                3.63                 3.00
 $250,000 -- $499,999               2.50                2.56                 2.15
 $500,000 -- $999,999               2.00                2.04                 1.75
 $1,000,000 or more                 0.00                0.00                 0.00***

*Because of rounding in the calculation of the offering price, the portion of the sales charge retained by the distributor may vary and the actual sales charge you pay may be more or less than the sales charge calculated using these percentages.
**Purchase price includes the sales charge.
***Although there is no sales charge for purchases with a total market value over $1,000,000, and therefore no re-allowance, the distributor may pay a financial institution the following: a sales commission of up to 1.00% for a sale with a total market value of $1,000,000 to $2,999,999; a sales commission up to 0.50% for a sale of $3,000,000 to $9,999,999; and a sales commission up to 0.25% for a sale of $10,000,000 or more.

INITIAL SALES CHARGE -- RIGHTS OF ACCUMULATION. You may be able to reduce the sales charge on Class A shares, based on the combined market value of your accounts. The current market values of the following investments are eligible to be added together for purposes of determining the sales charge on your purchase:
- Your current investment in a fund; and


S.4


- Previous investments you and members of your primary household group have made in Class A, Class B or Class C shares in the fund and other RiverSource funds, provided your investment was subject to a sales charge. Your primary household group consists of you, your spouse or domestic partner and your unmarried children under age 21 sharing a mailing address.

The following accounts are eligible to be included in determining the sales charge on your purchase:

- Individual or joint accounts;

- Roth and traditional IRAs, SEPs, SIMPLEs and TSCAs, provided they are invested in Class A, Class B or Class C shares that were subject to a sales charge;

- UGMA/UTMA accounts for which you, your spouse, or your domestic partner is parent or guardian of the minor child;

- Revocable trust accounts for which you or a member of your primary household group, individually, is the beneficial owner/grantor;

- Accounts held in the name of your, your spouse's, or your domestic partner's sole proprietorship or single owner limited liability company or S corporation; and

- Qualified retirement plan assets, provided that you are the sole owner of the business sponsoring the plan, are the sole participant (other than a spouse) in the plan, and have no intention of adding participants to the plan.

The following accounts are NOT eligible to be included in determining the sales charge on your purchase:

- Accounts of pension and retirement plans with multiple participants, such as 401(k) plans (which are combined to reduce the sales charge for the entire pension or retirement plan and therefore are not used to reduce the sales charge for your individual accounts);

- Investments in Class A shares where the sales charge is waived, for example, purchases through wrap accounts;

- Investments in Class D, Class E, Class I, Class R2, Class R3, Class R4, Class R5, Class W or Class Y shares;

- Investments in 529 plans, donor advised funds, variable annuities, variable life insurance products, wrap accounts or managed separate accounts; and

- Charitable and irrevocable trust accounts.

If you purchase RiverSource fund shares through different financial institutions, and you want to include those assets toward a reduced sales charge, you must inform your financial institution in writing about the other accounts when placing your purchase order. Contact your financial institution to determine what information is required.


S.5


Unless you provide your financial institution in writing with information about all of the accounts that may count toward a sales charge reduction, there can be no assurance that you will receive all of the reductions for which you may be eligible. You should request that your financial institution provide this information to the fund when placing your purchase order.

For more information on rights of accumulation, please see the SAI.

INITIAL SALES CHARGE -- LETTER OF INTENT (LOI). Generally, if you intend to invest $50,000 or more over a period of 13 months or less, you may be able to reduce the front-end sales charges for investments in Class A shares by completing and filing a LOI form. The LOI becomes effective only after the form is processed in good order by the fund. An LOI can be backdated up to a maximum of 90 days. If the LOI is backdated, you may include prior investments in Class A shares that were charged a front-end sales load toward the LOI commitment amount. If the LOI is backdated, the 13-month period begins on the date of the earliest purchase included in the LOI.

Holdings More than 90 Days Old. Purchases made more than 90 days before your LOI is processed by the fund will not be counted toward the commitment amount of the LOI and cannot be used as the starting point for the LOI. While these purchases cannot be included in an LOI, they may help you obtain a reduced sales charge on future purchases as described in "Initial Sales Charge -- Rights of Accumulation."

Notification Obligation. You must request the reduced sales charge when you buy shares. If you do not complete and file the LOI form, or do not request the reduced sales charge at the time of purchase, you will not be eligible for the reduced sales charge. You should request that your financial institution provide this information to the fund when placing your purchase order. For more details on LOIs, please contact your financial institution or see the SAI.

INITIAL SALES CHARGE -- WAIVERS OF THE SALES CHARGE FOR CLASS A SHARES. Sales
charges do not apply to:

- current or retired Board members, officers or employees of RiverSource funds or RiverSource Investments or its affiliates, their spouses or domestic partners, children, parents and their spouse's or domestic partner's parents.

- current or retired Ameriprise Financial Services, Inc. (Ameriprise Financial Services) financial advisors, employees of financial advisors, their spouses or domestic partners, children, parents and their spouse's or domestic partner's parents.

- registered representatives and other employees of financial institutions having a selling agreement with the distributor, including their spouses, domestic partners, children, parents and their spouse's or domestic partner's parents.


S.6


- portfolio managers employed by subadvisers of the RiverSource funds, including their spouses or domestic partners, children, parents and their spouse's or domestic partner's parents.

- qualified employee benefit plans offering participants daily access to RiverSource funds. Eligibility must be determined in advance. For assistance, please contact your financial institution.

- direct rollovers from qualified employee benefit plans, provided that the rollover involves a transfer of Class R or Class Y shares in a fund to Class A shares in the same fund.

- purchases made:

- with dividend or capital gain distributions from a fund or from the same class of another RiverSource fund;

- through or under a wrap fee product or other investment product sponsored by a financial institution having a selling agreement with the distributor;

- through state sponsored college savings plans established under Section 529 of the Internal Revenue Code;

- through bank trust departments.

- shareholders whose original purchase was in a Strategist fund merged into a RiverSource fund in 2000.

The distributor may, in its sole discretion, authorize the waiver of sales charges for additional purchases or categories of purchases. Policies related to reducing or waiving the sales charge may be modified or withdrawn at any time.

Unless you provide your financial institution with information in writing about all of the factors that may count toward a waiver of the sales charge, there can be no assurance that you will receive all of the waivers for which you may be eligible. You should request that your financial institution provide this information to the fund when placing your purchase order.

Because the current prospectus is available on RiverSource Investment's website free of charge, RiverSource Investments does not disclose this information separately on the website.


S.7


CLASS B AND CLASS C -- CONTINGENT DEFERRED SALES CHARGE ALTERNATIVE

FOR CLASS B, the CDSC is based on the sale amount and the number of years between purchase and sale. The following table shows how CDSC percentages on sales decline:

IF THE SALE IS MADE DURING THE:                      THE CDSC PERCENTAGE RATE IS:*
 First year                                                        5%
 Second year                                                       4%
 Third year                                                        4%
 Fourth year                                                       3%
 Fifth year                                                        2%
 Sixth year                                                        1%
 Seventh or eighth year                                            0%

* Because of rounding in the calculation, the portion of the CDSC retained by the distributor may vary and the actual CDSC you pay may be more or less than the CDSC calculated using these percentages.

Although there is no front-end sales charge when you buy Class B shares, the distributor pays a sales commission of 4% to financial institutions that sell Class B shares. A portion of this commission may, in turn, be paid to your financial advisor. The distributor receives any CDSC imposed when you sell your Class B shares.

Purchases made prior to May 21, 2005 age on a calendar year basis. Purchases made beginning May 21, 2005 age on a daily basis. For example, a purchase made on Nov. 12, 2004 completed its first year on Dec. 31, 2004 under calendar year aging. However, a purchase made on Nov. 12, 2005 completed its first year on Nov. 11, 2006 under daily aging.

Class B shares purchased prior to May 21, 2005 will convert to Class A shares in the ninth calendar year of ownership. Class B shares purchased beginning May 21, 2005 will convert to Class A shares one month after the completion of the eighth year of ownership.

FOR CLASS C, a 1% CDSC may be charged if you sell your shares within one year after purchase. Although there is no front-end sales charge when you buy Class C shares, the distributor pays a sales commission of 1% to financial institutions that sell Class C shares. A portion of this commission may, in turn, be paid to your financial advisor. The distributor receives any CDSC imposed when you sell your Class C shares.


S.8


For both Class B and Class C, if the amount you sell causes the value of your investment to fall below the cost of the shares you have purchased, the CDSC will be based on the lower of the cost of those shares purchased or market value. Because the CDSC is imposed only on sales that reduce your total purchase payments, you do not have to pay a CDSC on any amount that represents appreciation in the value of your shares, income earned by your shares, or capital gains. In addition, the CDSC on your sale, if any, will be based on your oldest purchase payment. The CDSC on the next amount sold will be based on the next oldest purchase payment.

EXAMPLE

Assume you had invested $10,000 in Class B shares and that your investment had appreciated in value to $12,000 after 3 1/2 years, including reinvested dividends and capital gain distributions. You could sell up to $2,000 worth of shares without paying a CDSC ($12,000 current value less $10,000 purchase amount). If you sold $2,500 worth of shares, the CDSC would apply to the $500 representing part of your original purchase price. The CDSC rate would be 3% because the sale was made during the fourth year after the purchase.

CDSC -- WAIVERS OF THE CDSC FOR CLASS B SHARES. The CDSC will be waived on sales of shares:

- in the event of the shareholder's death;

- held in trust for an employee benefit plan; or

- held in IRAs or certain qualified plans, such as Keogh plans, tax-sheltered custodial accounts or corporate pension plans, provided that the shareholder is:

- at least 59 1/2 years old AND

- taking a retirement distribution (if the sale is part of a transfer to an IRA or qualified plan, or a custodian-to-custodian transfer, the CDSC will not be waived) OR

- selling under an approved substantially equal periodic payment arrangement.

CDSC -- WAIVERS OF THE CDSC FOR CLASS C SHARES. The CDSC will be waived on sales of shares in the event of the shareholder's death.

CLASS I AND CLASS R5 -- NO SALES CHARGE. For Class I and Class R5, there is no initial sales charge or CDSC.


S.9


OPENING AN ACCOUNT

Financial institutions are required by law to obtain certain personal information from each person who opens an account in order to verify the identity of the person. As a result, when you open an account you will be asked to provide your name, permanent street address, date of birth, and Social Security or Employer Identification number. You may also be asked for other identifying documents or information. If you do not provide this information, the financial institution through which you are investing in the fund may not be able to open an account for you. If the financial institution through which you are investing in the fund is unable to verify your identity, your account may be closed, or other steps may be taken, as deemed appropriate.

When you buy shares, your order will be priced at the next NAV calculated after your order is accepted by the fund or an authorized financial institution.

Your financial institution may establish and maintain your account directly or it may establish and maintain your account with the distributor. The distributor may appoint servicing agents to accept purchase orders and to accept exchange (and sale) orders on its behalf. Accounts maintained by the distributor will be supported by the fund's transfer agent.

METHODS OF PURCHASING SHARES

These methods of purchasing shares apply to Class A, Class B, and Class C shares.

THROUGH AN ACCOUNT ESTABLISHED WITH YOUR FINANCIAL INSTITUTION

ALL REQUESTS        The financial institution through which you buy shares may
                    have different policies not described in this prospectus,
                    including different minimum investment amounts and minimum
                    account balances.
--------------------------------------------------------------------------------

THROUGH AN ACCOUNT ESTABLISHED WITH THE FUND

BY MAIL             The financial institution through which you buy shares may
                    establish an account directly with the fund. To establish an
                    account in this fashion, complete a RiverSource funds
                    account application with your financial advisor or
                    investment professional, and mail the account application to
                    the address below. Account applications may be requested by
                    calling (888) 791-3380. Make your check payable to the fund.
                    The fund does not accept cash, credit card convenience
                    checks, money orders, traveler's checks, starter checks,
                    third or fourth party checks, or other cash equivalents.

                    Mail your check and completed application to:
--------------------------------------------------------------------------------


S.10


METHODS OF PURCHASING SHARES (CONTINUED)

THROUGH AN ACCOUNT ESTABLISHED WITH THE FUND (CONT.)

BY MAIL (CONT.) REGULAR MAIL RIVERSOURCE INVESTMENTS (FUNDS)

P.O. BOX 8041
BOSTON, MA 02266-8041

EXPRESS MAIL RIVERSOURCE INVESTMENTS (FUNDS)
C/O BFDS
30 DAN ROAD
CANTON, MA 02021-2809

                    If you already have an account, include your name, account
                    number and the name of the fund and class of shares along
                    with your check. You can make scheduled investments in the
                    fund by moving money from your checking account or savings
                    account. See the Minimum Investment and Account Balance
                    chart below for more information regarding scheduled
                    investment plans.
--------------------------------------------------------------------------------

BY WIRE OR ACH      Fund shares purchased through the distributor may be paid
                    for by federal funds wire. Before sending a wire, call (888)
                    791-3380 to notify the distributor of the wire and to
                    receive further instructions.

                    If you are establishing an account with a wire purchase, you
                    are required to send a signed account application to the
                    address above. Please include the wire control number or
                    your new account number on the application.

                    Your bank or financial institution may charge additional
                    fees for wire transactions.
--------------------------------------------------------------------------------

BY EXCHANGE         Call (888) 791-3380 or send signed written instructions to
                    the address above.
--------------------------------------------------------------------------------

--------------------------------------------------------------------------------

                                                                            S.11


MINIMUM INVESTMENT AND ACCOUNT BALANCE

                                                              FOR ALL FUNDS,
                                                              CLASSES AND
                                                              ACCOUNTS
----------------------------------------------------------------------------
INITIAL INVESTMENT                                            $10,000
----------------------------------------------------------------------------
ADDITIONAL INVESTMENTS                                        $100
----------------------------------------------------------------------------
ACCOUNT BALANCE*                                              $5,000

* If your fund account balance falls below the minimum account balance for any reason, including a market decline, you may be asked to increase it to the minimum account balance or establish a scheduled investment plan. If you do not do so within 30 days, your shares may be automatically redeemed and the proceeds mailed to you.


MINIMUM INVESTMENT AND ACCOUNT BALANCE -- SCHEDULED INVESTMENT PLANS

                                                              FOR ALL FUNDS,
                                                              CLASSES AND
                                                              ACCOUNTS
----------------------------------------------------------------------------
INITIAL INVESTMENT                                            $10,000
----------------------------------------------------------------------------
ADDITIONAL INVESTMENTS                                        $100
----------------------------------------------------------------------------
ACCOUNT BALANCE**                                             $5,000

** If your fund account balance is below the minimum initial investment described above, you must make payments at least monthly.

These minimums may be waived for accounts that are managed by an investment professional, for accounts held in approved discretionary or non-discretionary wrap programs, for accounts that are a part of an employer-sponsored retirement plan, or for other account types if approved by the distributor.

The fund reserves the right to modify its minimum account requirements at any time, with or without prior notice.

Please contact your financial institution for information regarding wire or electronic funds transfer.

EXCHANGING OR SELLING SHARES

You may exchange or sell shares by having your financial institution process your transaction. If your account is maintained directly with your financial institution, you must contact that financial institution to exchange or sell shares of the fund. If your account was established with the distributor, there are a variety of methods you may use to exchange or sell shares of the fund.


S.12


WAYS TO REQUEST AN EXCHANGE OR SALE OF SHARES

ACCOUNT ESTABLISHED WITH YOUR FINANCIAL INSTITUTION

ALL REQUESTS        You can exchange or sell shares by having your financial
                    institution process your transaction. The financial
                    institution through which you purchased shares may have
                    different policies not described in this prospectus,
                    including different transaction limits, exchange policies
                    and sale procedures.
--------------------------------------------------------------------------------

ACCOUNT ESTABLISHED WITH THE FUND

BY MAIL Mail your exchange or sale request to:

REGULAR MAIL RIVERSOURCE INVESTMENTS (FUNDS)
P.O. BOX 8041
BOSTON, MA 02266-8041

EXPRESS MAIL RIVERSOURCE INVESTMENTS (FUNDS)
C/O BFDS
30 DAN ROAD
CANTON, MA 02021-2809

Include in your letter:

- your name

- the name of the fund(s)

- your account number

- the class of shares to be exchanged or sold

- your Social Security number or Employer Identification number

- the dollar amount or number of shares you want to exchange or sell

- specific instructions regarding delivery or exchange destination

- signature(s) of registered account owner(s)

- any special documents the transfer agent may require in order to process your order

Corporate, trust or partnership accounts may need to send additional documents.

Payment will be mailed to the address of record and made payable to the names listed on the account, unless your request specifies differently and is signed by all owners.

A Medallion Signature Guarantee is required if:


S.13


WAYS TO REQUEST AN EXCHANGE OR SALE OF SHARES (CONTINUED)

ACCOUNT ESTABLISHED WITH THE FUND (CONT.)

BY MAIL (CONT.)     - Amount is over $50,000.

                    - You want your check made payable to someone other than
                      yourself.

                    - Your address has changed within the last 30 days.

                    - You want the check mailed to an address other than the
                      address of record.

                    - You want the proceeds sent to a bank account not on file.

                    - You are the beneficiary of the account and the account
                      owner is deceased (additional documents may be required).

                    A Medallion Signature Guarantee assures that a signature is
                    genuine and not a forgery. The financial institution
                    providing the Guarantee is financially liable for the
                    transaction if the signature is a forgery. Eligible
                    guarantors include commercial banks, trust companies,
                    savings associations, and credit unions as defined by the
                    Federal Deposit Insurance Act. Note: A guarantee from a
                    notary public is not acceptable.

                    NOTE: Any express mail delivery charges you pay will vary
                    depending on domestic or international delivery
                    instructions.
--------------------------------------------------------------------------------

BY TELEPHONE        Call (888) 791-3380. Unless you elect not to have telephone
                    exchange and sale privileges, they will automatically be
                    available to you. Reasonable procedures will be used to
                    confirm authenticity of telephone exchange or sale requests.
                    Telephone privileges may be modified or discontinued at any
                    time. Telephone exchange and sale privileges automatically
                    apply to all accounts except custodial, corporate or
                    qualified retirement accounts. You may request that these
                    privileges NOT apply by writing to the address above.

                    Payment will be mailed to the address of record and made
                    payable to the names listed on the account.

                    Telephone sale requests are limited to $100,000 per day.
--------------------------------------------------------------------------------

BY WIRE OR ACH      You can wire money from your fund account to your bank
                    account. Make sure we have your bank account information on
                    file. If we do not have this information, you will need to
                    send written instructions with your bank's name and a voided
                    check or savings account deposit slip.
--------------------------------------------------------------------------------


S.14


WAYS TO REQUEST AN EXCHANGE OR SALE OF SHARES (CONTINUED)

ACCOUNT ESTABLISHED WITH THE FUND (CONT.)

BY WIRE OR ACH

(CONT.)             Call (888) 791-3380 or send a letter of instruction, with a
                    Medallion Signature Guarantee if required, to the address
                    above.

                    A service fee may be charged against your account for each
                    wire sent.

                    Minimum amount: $100

                    Your bank or financial institution may charge additional
                    fees for wire transactions.
--------------------------------------------------------------------------------

BY SCHEDULED
PAYOUT PLAN         You may elect to receive regular periodic payments through
                    an automatic sale of shares. See the SAI for more
                    information.
--------------------------------------------------------------------------------

IMPORTANT: Payments sent by a bank authorization or check that are not guaranteed may take up to ten days to clear. This may cause your sale request to fail to process if the requested amount includes unguaranteed funds.

EXCHANGES

Generally, you may exchange your fund shares for shares of the same class of any other publicly offered RiverSource fund without a sales charge. For complete information on the fund you are exchanging into, including fees and expenses, read that fund's prospectus carefully. Your exchange will be priced at the next NAV calculated after your transaction request is received in good order.

MARKET TIMING IS FREQUENT OR SHORT-TERM TRADING BY CERTAIN SHAREHOLDERS INTENDED TO PROFIT AT THE EXPENSE OF OTHER SHAREHOLDERS BY SELLING SHARES OF A FUND

SHORTLY AFTER PURCHASE. MARKET TIMING MAY ADVERSELY IMPACT A FUND'S PERFORMANCE BY PREVENTING THE INVESTMENT MANAGER FROM FULLY INVESTING THE ASSETS OF THE FUND, DILUTING THE VALUE OF SHARES HELD BY LONG-TERM SHAREHOLDERS, OR INCREASING THE FUND'S TRANSACTION COSTS.

FUNDS THAT INVEST IN SECURITIES THAT TRADE INFREQUENTLY MAY BE VULNERABLE TO MARKET TIMERS WHO SEEK TO TAKE ADVANTAGE OF INEFFICIENCIES IN THE SECURITIES MARKETS. FUNDS THAT INVEST IN SECURITIES THAT TRADE ON OVERSEAS SECURITIES MARKETS MAY BE VULNERABLE TO MARKET TIMERS WHO SEEK TO TAKE ADVANTAGE OF CHANGES IN THE VALUES OF SECURITIES BETWEEN THE CLOSE OF OVERSEAS MARKETS AND THE CLOSE OF U.S. MARKETS, WHICH IS GENERALLY THE TIME AT WHICH A FUND'S NAV IS CALCULATED. TO THE EXTENT THAT A FUND HAS SIGNIFICANT HOLDINGS OF SMALL CAP

STOCKS OR FOREIGN SECURITIES, THE RISKS OF MARKET TIMING MAY BE GREATER FOR THE FUND THAN FOR OTHER FUNDS. SEE "PRINCIPAL INVESTMENT STRATEGIES" FOR A DISCUSSION OF THE TYPES OF SECURITIES IN WHICH YOUR FUND INVESTS.


S.15


SEE "VALUING FUND SHARES" FOR A DISCUSSION OF THE RIVERSOURCE FUNDS' POLICY ON FAIR VALUE PRICING, WHICH IS INTENDED, IN PART, TO REDUCE THE FREQUENCY AND EFFECT OF MARKET TIMING.

THE RIVERSOURCE FUNDS' BOARDS HAVE ADOPTED A POLICY THAT IS DESIGNED TO DETECT AND DETER MARKET TIMING THAT MAY BE HARMFUL TO THE FUNDS. EACH FUND SEEKS TO ENFORCE THIS POLICY THROUGH ITS SERVICE PROVIDERS AS FOLLOWS:

- The fund tries to distinguish market timing from trading that it believes is not harmful, such as periodic rebalancing for purposes of asset allocation or dollar cost averaging. Under the fund's procedures, there is no set number of transactions in the fund that constitutes market timing. Even one purchase and subsequent sale by related accounts may be market timing. Generally, the fund seeks to restrict the exchange privilege of an investor who makes more than three exchanges into or out of the fund in any 90-day period. Accounts held by a retirement plan or a financial institution for the benefit of its participants or clients, which typically engage in daily transactions, are not subject to this limit, although the fund seeks the assistance of financial institutions in applying similar restrictions on the sub-accounts of their participants or clients.

- If an investor's trading activity is determined to be market timing or otherwise harmful to existing shareholders, the fund reserves the right to modify or discontinue the investor's exchange privilege or reject the investor's purchases or exchanges, including purchases or exchanges accepted by a financial institution. The fund may treat accounts it believes to be under common control as a single account for these purposes, although it may not be able to identify all such accounts.

- Although the fund does not knowingly permit market timing, it cannot guarantee that it will be able to identify and restrict all short-term trading activity. The fund receives purchase and sale orders through financial institutions where market timing activity may not always be successfully detected.

Other exchange policies:

- Exchanges must be made into the same class of shares of the new fund.

- Exchanges into RiverSource Tax-Exempt Money Market Fund may be made only from Class A shares.

- If your exchange creates a new account, it must satisfy the minimum investment amount for new purchases.

- Once the fund receives your exchange request, you cannot cancel it.

- Shares of the new fund may not be used on the same day for another exchange or sale.

SELLING SHARES
You may sell your shares at any time. The payment will be sent within seven days after your request is received in good order.


S.16

When you sell shares, the amount you receive may be more or less than the amount you invested. Your sale price will be the next NAV calculated after your request is received in good order, minus any applicable CDSC.

REPURCHASES. You can change your mind after requesting a sale and use all or part of the sale proceeds to purchase new shares in the same account, fund and class from which you sold. If you reinvest in Class A, you will purchase the new shares at NAV, up to the amount of the sale proceeds, instead of paying a sales charge on the date of a new purchase. If you reinvest in Class B or Class C, any CDSC you paid on the amount you are reinvesting also will be reinvested. In order for you to take advantage of this repurchase waiver, you must notify your financial institution within 90 days of the date your sale request was processed. Contact your financial institution for information on required documentation. The repurchase privilege may be modified or discontinued at any time and use of this option may have tax consequences.

Each fund reserves the right to redeem in kind.

For more details and a description of other sales policies, please see the SAI.

VALUING FUND SHARES

For classes of shares sold with an initial sales charge, the public offering or purchase price is the net asset value plus the sales charge. For funds or classes of shares sold without an initial sales charge, the public offering price is the NAV.

Orders in good form are priced at the NAV next determined after you place your order. Good form or good order means that your instructions have been received in the form required by the fund. This may include, for example, providing the fund name and account number, the amount of the transaction and all required signatures. For more information, contact your financial institution.

The NAV is the value of a single share of a fund. The NAV is determined by dividing the value of a fund's assets, minus any liabilities, by the number of shares outstanding. The NAV is calculated as of the close of business on the New York Stock Exchange (NYSE), normally 4:00 p.m. Eastern time, on each day that the NYSE is open. Securities are valued primarily on the basis of market quotations. Market quotations are obtained from outside pricing services approved and monitored under procedures adopted by the Board. Certain short-term securities with maturities of 60 days or less are valued at amortized cost.


S.17


When reliable market quotations are not readily available, investments are priced at fair value based on procedures adopted by the Board. These procedures are also used when the value of an investment held by a fund is materially affected by events that occur after the close of a securities market but prior to the time as of which the fund's NAV is determined. Valuing investments at fair value involves reliance on judgment. The fair value of an investment is likely to differ from any available quoted or published price. To the extent that a fund has significant holdings of foreign securities or small cap stocks that may trade infrequently, fair valuation may be used more frequently than for other funds. The funds use an unaffiliated service provider to assist in determining fair values for foreign securities.

Foreign investments are valued in U.S. dollars. Some of a fund's securities may be listed on foreign exchanges that trade on weekends or other days when the fund does not price its shares. In that event, the NAV of the fund's shares may change on days when shareholders will not be able to purchase or sell the fund's shares.

DISTRIBUTIONS AND TAXES

As a shareholder you are entitled to your share of your fund's net income and net gains. Each fund distributes dividends and capital gains to qualify as a regulated investment company and to avoid paying corporate income and excise taxes.

DIVIDENDS AND CAPITAL GAIN DISTRIBUTIONS

Your fund's net investment income is distributed to you as dividends. Dividends may be composed of qualifying dividend income, which is eligible for preferential tax rates under current tax law, as well as other ordinary dividend income, which may include non-qualifying dividends, interest income and short-term capital gains. Capital gains are realized when a security is sold for a higher price than was paid for it. Each realized capital gain or loss is long-term or short-term depending on the length of time the fund held the security. Realized capital gains and losses offset each other. The fund offsets any net realized capital gains by any available capital loss carryovers. Net short-term capital gains are included in net investment income. Net realized long-term capital gains, if any, are distributed by the end of the calendar year as capital gain distributions.

REINVESTMENTS

Dividends and capital gain distributions are automatically reinvested in additional shares in the same class of the fund, unless you request distributions in cash. The financial institution through which you purchased shares may have different policies.

Distributions are reinvested at the next calculated NAV after the distribution is paid. If you choose cash distributions, you will receive cash only for distributions declared after your request has been processed.


S.18


TAXES

If you buy shares shortly before the record date of a distribution, you may pay taxes on money earned by the fund before you were a shareholder. You will pay the full pre-distribution price for the shares, then receive a portion of your investment back as a distribution, which may be taxable.

For tax purposes, an exchange is considered a sale and purchase, and may result in a gain or loss. A sale is a taxable transaction. Generally, if you sell shares for less than their cost, the difference is a capital loss or if you sell shares for more than their cost, the difference is a capital gain. Your gain may be short term (for shares held for one year or less) or long term (for shares held for more than one year).

You may not create a tax loss, based on paying a sales charge, by exchanging shares before the 91st day after the day of purchase. If you buy Class A shares and exchange into another fund before the 91st day after the day of purchase, you may not include the sales charge in your calculation of tax gain or loss on the sale of the first fund you purchased. The sales charge may be included in the calculation of your tax gain or loss on a subsequent sale of the second fund you purchased. For more information, see the SAI.

Distributions of shares not held in IRAs or other retirement accounts are subject to federal income tax and may be subject to state and local taxes in the year they are declared. You must report distributions on your tax returns, even if they are reinvested in additional shares.

Income received by a fund may be subject to foreign tax and withholding. Tax conventions between certain countries and the U.S. may reduce or eliminate these taxes.

Shares held in an IRA or qualified retirement account are generally subject to different tax rules. Taking a distribution from your IRA or qualified retirement plan may subject you to federal taxes, penalties and reporting requirements. Please consult your tax advisor.

IMPORTANT: This information is a brief and selective summary of some of the tax rules that apply to an investment in a fund. Because tax matters are highly individual and complex, you should consult a qualified tax advisor.


S.19


GENERAL INFORMATION

AVAILABILITY AND TRANSFERABILITY OF FUND SHARES

Please consult your financial institution to determine availability of RiverSource funds. Currently, RiverSource funds may be purchased or sold through affiliated broker-dealers of RiverSource Investments and through certain unaffiliated financial institutions. If you set up an account at a financial institution that does not have, and is unable to obtain, a selling agreement with the distributor of the RiverSource funds, you will not be able to transfer RiverSource fund holdings to that account. In that event, you must either maintain your RiverSource fund holdings with your current financial institution, find another financial institution with a selling agreement, or sell your shares, paying any applicable CDSC. Please be aware that transactions in taxable accounts are taxable events and may result in income tax liability.

ADDITIONAL SERVICES AND COMPENSATION

In addition to acting as the fund's investment manager, RiverSource Investments and its affiliates also receive compensation for providing other services to the funds.

Administration Services. Ameriprise Financial, 200 Ameriprise Financial Center, Minneapolis, Minnesota 55474, provides or compensates others to provide administrative services to the RiverSource funds. These services include administrative, accounting, treasury, and other services. Fees paid by a fund for these services are included under "Other expenses" in the expense table under "Fees and Expenses."

Custody Services. The Bank of New York, One Wall Street, New York, New York, 10286 (the custodian or BNY), provides custody to RiverSource 120/20 Contrarian Equity Fund and RiverSource 130/30 U.S. Equity Fund. In addition, BNY is paid for certain transaction fees and out-of-pocket expenses incurred while providing services to the funds. Fees paid by a fund for these services are included under: "Other expenses" in the expense table under "Fees and Expenses."


S.20


Distribution and Shareholder Services. RiverSource Distributors, Inc., 50611 Ameriprise Financial Center, Minneapolis, Minnesota 55474, and Ameriprise Financial Services, 70100 Ameriprise Financial Center, Minneapolis, Minnesota 55474 (collectively, the distributor), provide underwriting and distribution services to the RiverSource funds. Under the Distribution Agreement and related distribution and shareholder servicing plans, the distributor receives distribution and shareholder servicing fees. The distributor may retain a portion of these fees to support its distribution and shareholder servicing activity. The distributor re-allows the remainder of these fees (or the full fee) to the financial institutions that sell fund shares and provide services to shareholders. Fees paid by a fund for these services are set forth under "Distribution (12b-1) fees" in the expense table under "Fees and Expenses." More information on how these fees are used is set forth under "Investment Options -- Classes of Shares" and in the SAI. The distributor also administers any sales charges paid by an investor at the time of purchase or at the time of sale. See "Shareholder Fees (fees paid directly from your investment)" under "Fees and Expenses" for the scheduled sales charge of each share class. See "Buying and Selling Shares: Sales Charges" for variations in the scheduled sales charges, and for how these sales charges are used by the distributor. See "Other Investment Strategies and Risks" for the RiverSource funds' policy regarding directed brokerage.

Transfer Agency Services. RiverSource Service Corporation, 734 Ameriprise Financial Center, Minneapolis, Minnesota 55474 (the transfer agent or RiverSource Service Corporation), provides or compensates others to provide transfer agency services to the RiverSource funds. The RiverSource funds pay the transfer agent a fee that varies by class, as set forth in the SAI, and reimburses the transfer agent for its out-of-pocket expenses incurred while providing these transfer agency services to the funds. Fees paid by a fund for these services are included under "Other expenses" in the expense table under "Fees and Expenses." RiverSource Service Corporation pays a portion of these fees to financial institutions that provide sub-recordkeeping and other services to fund shareholders. The SAI provides additional information about the services provided and the fee schedules for the transfer agent agreements.

PAYMENTS TO FINANCIAL INSTITUTIONS

RiverSource Investments and its affiliates may make or support additional cash payments out of their own resources to financial institutions, including inter- company allocation of resources to affiliated broker-dealers such as Ameriprise Financial Services (and its licensed representatives), in connection with selling fund shares or providing services to the fund or its shareholders. These inter-company allocations may include payment as compensation to employees of RiverSource Investments who are licensed by Ameriprise Financial Services, in respect of certain sales and solicitation activity on behalf of the funds. These payments and inter-company allocations are in addition to any 12b-1 distribution


S.21


and/or shareholder service fees or other amounts paid by the fund to the distributor under distribution and shareholder servicing plans, or paid by the fund to the transfer agent under its transfer agency agreement or plan administration agreement, which fees may be used by these entities to support shareholder account maintenance, sub-accounting, recordkeeping or other services provided directly by the financial institution to shareholders or 529 and retirement plans and the plan participants. In exchange for these payments and inter-company allocations, RiverSource Investments and its affiliates may receive preferred access to registered representatives of a financial institution (for example, the ability to make presentations in branch offices or at conferences) or preferred access to customers of the financial institution (for example, the ability to advertise or directly interact with the financial institution's customers in order to sell the fund). These arrangements are sometimes referred to as "revenue sharing payments." In some cases, these arrangements may create an incentive for a financial institution or its representatives to recommend or sell shares of a fund and may create a conflict of interest between a financial institution's financial interest and its duties to its customers. Please contact the financial institution through which you are purchasing shares of the fund for details about any payments it may receive in connection with the solicitation and sale of fund shares or providing services to the fund or its shareholders. These payments and inter-company allocations are usually calculated based on a percentage of fund sales and/or as a percentage of fund assets attributable to a particular financial institution. These payments may also be negotiated based on other criteria or factors including, but not limited to, the financial institution's affiliation with the investment manager, its reputation in the industry, its ability to attract and retain assets, its access to target markets, its customer relationships and the scope and quality of services it provides. The amount of payment or inter-company allocation may vary by financial institution and by type of sale (e.g., purchases of different share classes or purchases of the fund through a qualified plan or through a wrap program), and may be significant.

From time to time, RiverSource Investments and its affiliates may make other reimbursements or payments to financial institutions or their representatives including non-cash compensation, in the form of gifts of nominal value, occasional meals, tickets, or other entertainment, support for due diligence trips, training and educational meetings or conference sponsorships, support for recognition programs, and other forms of non-cash compensation permissible under regulations to which these financial institutions and their representatives are subject.


S.22


ADDITIONAL MANAGEMENT INFORMATION

MANAGER OF MANAGERS EXEMPTION. The RiverSource funds have received an order from the Securities and Exchange Commission that permits RiverSource Investments, subject to the approval of the Board, to appoint a subadviser or change the terms of a subadvisory agreement for a fund without first obtaining shareholder approval. The order permits the fund to add or change unaffiliated subadvisers or change the fees paid to subadvisers from time to time without the expense and delays associated with obtaining shareholder approval of the change.

RiverSource Investments or its affiliates may have other relationships, including significant financial relationships, with current or potential subadvisers or their affiliates, which may create a conflict of interest. In making recommendations to the Board to appoint or to change a subadviser, or to change the terms of a subadvisory agreement, RiverSource Investments does not consider any other relationship it or its affiliates may have with a subadviser, and RiverSource Investments discloses the nature of any material relationships it has with a subadviser to the Board.

AFFILIATED PRODUCTS. RiverSource Investments also serves as investment manager to RiverSource funds that provide asset-allocation services to shareholders by investing in shares of other RiverSource funds (Funds of Funds) and to discretionary managed accounts (collectively referred to as "affiliated products"). A fund may experience relatively large purchases or redemptions from the affiliated products. Although RiverSource Investments seeks to minimize the impact of these transactions by structuring them over a reasonable period of time or through other measures, a fund may experience increased expenses as it buys and sells securities to manage transactions for the affiliated products. In addition, because the affiliated products may own a substantial portion of a fund, a redemption by one or more affiliated product could cause a fund's expense ratio to increase as the fund's fixed costs would be spread over a smaller asset base. RiverSource Investments monitors expense levels and is committed to offering funds that are competitively priced. RiverSource Investments will report to the Board on the steps it has taken to manage any potential conflicts.

CASH RESERVES. A fund may invest its daily cash balance in RiverSource Short- Term Cash Fund (Short-Term Cash Fund), a money market fund established for the exclusive use of the RiverSource funds and other institutional clients of RiverSource Investments. While Short-Term Cash Fund does not pay an advisory fee to RiverSource Investments, it does incur other expenses, and is expected to operate at a very low expense ratio. A fund will invest in Short-Term Cash Fund only to the extent it is consistent with the fund's investment objectives and policies. Short-Term Cash Fund is not insured or guaranteed by the FDIC or any other government agency.


S.23


FUND HOLDINGS DISCLOSURE. The Board has adopted policies and procedures that govern the timing and circumstances of disclosure to shareholders and third parties of information regarding the securities owned by a fund. A description of these policies and procedures is included in the SAI.

LEGAL PROCEEDINGS. Ameriprise Financial and certain of its affiliates have historically been involved in a number of legal, arbitration and regulatory proceedings, including routine litigation, class actions, and governmental actions, concerning matters arising in connection with the conduct of their business activities. Ameriprise Financial believes that the fund is not currently the subject of, and that neither Ameriprise Financial nor any of its affiliates are the subject of, any pending legal, arbitration or regulatory proceedings that are likely to have a material adverse effect on the fund or the ability of Ameriprise Financial or its affiliates to perform under their contracts with the fund. Information regarding certain pending and settled legal proceedings may be found in the Fund's shareholder reports and in the SAI. Additionally, Ameriprise Financial is required to make 10-Q, 10-K and, as necessary, 8-K filings with the Securities and Exchange Commission on legal and regulatory matters that relate to Ameriprise Financial and its affiliates. Copies of these filings may be obtained by accessing the SEC website at www.sec.gov.


S.24


This fund can be purchased from Ameriprise Financial Services or from a limited number of other authorized financial institutions. The fund can be found under the "RiverSource" banner in most mutual fund quotations.

Additional information about the fund and its investments is available in the fund's SAI. The SAI is incorporated by reference in this prospectus. For a free copy of the SAI, or to request other information about the fund, contact RiverSource Funds or your financial institution. To make a shareholder inquiry, contact the financial institution through whom you purchased the fund.

RiverSource Funds
734 Ameriprise Financial Center
Minneapolis, MN 55474
(888) 791-3380

RiverSource Funds information available at RiverSource Investments website address: riversource.com/funds

You may review and copy information about the fund, including the SAI, at the Securities and Exchange Commission's (Commission) Public Reference Room in Washington, D.C. (for information about the public reference room call 1-202-551-8090). Reports and other information about the fund are available on the EDGAR Database on the Commission's Internet site at www.sec.gov. Copies of this information may be obtained, after paying a duplicating fee, by electronic request at the following E-mail address: publicinfo@sec.gov, or by writing to the Public Reference Section of the Commission, Washington, D.C. 20549-0102.

Investment Company Act File # 811-21852

TICKER SYMBOL
RiverSource 120/20 Contrarian Equity Fund
Class A: RCEAX     Class B: --        Class C: RECCX
Class I: --        Class R5: RCERX
RiverSource 130/30 U.S. Equity Fund
Class A: RUSAX     Class B: --        Class C: RUSCX
Class I: --        Class R5: RUSRX

(RIVERSOURCE INVESTMENTS LOGO) S-6502-99 A (10/07)


STATEMENT OF ADDITIONAL INFORMATION

OCT. 3, 2007

RIVERSOURCE SERIES TRUST

RiverSource 120/20 Contrarian Equity Fund
RiverSource 130/30 U.S. Equity Fund

This is the Statement of Additional Information (SAI) for each of the funds listed above. This SAI is not a prospectus. It should be read together with the appropriate current fund prospectus, the date of which can be found in Table 1 of this SAI.

Each fund's financial statements for its most recent fiscal period are contained in the fund's Annual or Semiannual Report to shareholders. For a free copy of a fund prospectus, annual or semiannual report, contact your financial institution or write to RiverSource Funds, 734 Ameriprise Financial Center, Minneapolis, MN 55474, call (888) 791-3380 or visit riversource.com/funds.

Each fund is governed by a Board of Trustees ("Board") that meets regularly to review a wide variety of matters affecting the funds. Detailed information about fund governance, the funds' investment manager, RiverSource Investments, LLC (the "investment manager" or "RiverSource Investments"), a wholly-owned subsidiary of Ameriprise Financial, Inc. ("Ameriprise Financial"), and other aspects of fund management can be found by referencing the Table of Contents.


TABLE OF CONTENTS

Fundamental and Nonfundamental Investment Policies...............................    3
Investment Strategies and Types of Investments...................................    4
Information Regarding Risks and Investment Strategies............................    5
Securities Transactions..........................................................   25
Brokerage Commissions Paid to Brokers Affiliated with the Investment Manager.....   27
Valuing Fund Shares..............................................................   27
Portfolio Holdings Disclosure....................................................   28
Proxy Voting.....................................................................   30
Investing in a Fund..............................................................   32
Selling Shares...................................................................   33
Pay-out Plans....................................................................   34
Taxes............................................................................   34
Service Providers................................................................   36
Organizational Information.......................................................   41
Board Members and Officers.......................................................   46
Information Regarding Pending and Settled Legal Proceedings......................   50
Independent Registered Public Accounting Firm....................................   51
Appendix A: Description of Ratings...............................................  A-1

LIST OF TABLES

 1.  Fund Fiscal Year Ends, Prospectus Date and Investment Categories.............     3
 2.  Investment Strategies and Types of Investments...............................     4
 3.  Class A Sales Charge.........................................................    32
 4.  Investment Management Services Agreement Fee Schedule........................    36
 5.  Performance Incentive Adjustment Calculation.................................    37
 6.  Portfolio Managers...........................................................    38
 7.  Administrative Services Agreement Fee Schedule...............................    39
 8.  Fund History Table for RiverSource Funds.....................................    42
 9.  Board Members................................................................    46
10.  Fund Officers................................................................    47
11.  Board Member Holdings -- All Funds...........................................    49
12.  Board Member Compensation -- All Funds.......................................    49
13.  Supplemental Board Member Retirement Benefits -- All Funds...................    50

Statement of Additional Information - Oct. 3, 2007 Page 2


TABLE 1. FUND FISCAL YEAR ENDS, PROSPECTUS DATE AND INVESTMENT CATEGORIES

                                                                                           FUND INVESTMENT
FUND                                                   FISCAL YEAR END   PROSPECTUS DATE       CATEGORY
----------------------------------------------------------------------------------------------------------
120/20 Contrarian Equity                                 September 30      Oct. 3, 2007         Equity
130/30 U.S. Equity                                       September 30      Oct. 3, 2007         Equity

FUNDAMENTAL AND NONFUNDAMENTAL INVESTMENT POLICIES

Fundamental investment policies adopted by a fund cannot be changed without the approval of a majority of the outstanding voting securities of the fund as defined in the Investment Company Act of 1940, as amended (the 1940 Act). Nonfundamental investment policies may be changed by the Board at any time.

Notwithstanding any of a fund's other investment policies, each fund may invest its assets in an open-end management investment company having substantially the same investment objectives, policies, and restrictions as the fund for the purpose of having those assets managed as part of a combined pool.

FUNDAMENTAL POLICIES

Fundamental policies are policies that can be changed only with shareholder approval.

FOR EACH FUND: The fund will not:

- Act as an underwriter (sell securities for others). However, under the securities laws, the fund may be deemed to be an underwriter when it purchases securities directly from the issuer and later resells them. This restriction shall not limit the fund's ability to invest in securities issued by other registered investment companies.

- Lend securities or participate in an interfund lending program if the total of all such loans would exceed 33 1/3% of the fund's total assets except this fundamental investment policy shall not prohibit the fund from purchasing money market securities, loans, loan participation or other debt securities, or from entering into repurchase agreements.

- Borrow money or issue senior securities except to the extent permitted by the 1940 Act, the rules and regulation thereunder and any applicable exemptive relief.

- Buy or sell real estate, unless acquired as a result of ownership of securities or other instruments, except this shall not prevent the fund from investing in securities or other instruments backed by real estate or securities of companies engaged in the real estate business or real estate investment trusts. For purposes of this policy, real estate includes real estate limited partnerships.

- Buy or sell commodities, except that the fund may to the extent consistent with its investment objective(s), invest in securities of companies that purchase or sell commodities or which invest in such programs, and purchase and sell options, forward contracts, futures contracts, and options on futures contracts and enter into swap contracts and other financial transactions relating to commodities. This restriction does not apply to foreign currency transactions including without limitation forward currency contracts.

- Purchase any securities which would cause 25% or more of the value of its total assets at the time of purchase to be invested in the securities of one or more issuers conducting their principal business activities in the same industry, provided that: a) there is no limitation with respect to obligations issued or guaranteed by the U.S. Government, any state or territory of the United States, or any of their agencies, instrumentalities or political subdivisions; and b) notwithstanding this limitation or any other fundamental investment limitation, assets may be invested in the securities of one or more management investment companies to the extent permitted by the 1940 Act, the rules and regulations thereunder and any applicable exemptive relief.

- Purchase more than 10% of the outstanding voting securities of an issuer, except that up to 25% of the fund's assets may be invested without regard to this 10% limitation.

- Invest more than 5% of its total assets in securities of any company, government, or political subdivision thereof, except the limitation will not apply to investments in securities issued or guaranteed by the U.S. government, its agencies, or instrumentalities, or other investment companies, and except that up to 25% of the fund's total assets may be invested without regard to this 5% limitation.

NONFUNDAMENTAL POLICIES

Nonfundamental policies are policies that can be changed by the Board without shareholder approval. The following nonfundamental policies are in addition to those described in the prospectus.

FOR EACH FUND:

- No more than 15% of the fund's net assets will be held in securities and other instruments that are illiquid.

- Up to 25% of the fund's net assets may be invested in foreign investments.

Statement of Additional Information - Oct. 3, 2007 Page 3


INVESTMENT STRATEGIES AND TYPES OF INVESTMENTS

This table shows many of the various investment strategies and investments that many funds are allowed to engage in and purchase. It is intended to show the breadth of investments that the investment manager or subadviser (individually and collectively, the "investment manager") may make on behalf of a fund. For a description of principal risks for an individual fund, please see the applicable prospectus for that fund. Notwithstanding a fund's ability to utilize these strategies and techniques, the investment manager is not obligated to use them at any particular time. For example, even though the investment manager is authorized to adopt temporary defensive positions and is authorized to attempt to hedge against certain types of risk, these practices are left to the investment manager's sole discretion.

TABLE 2. INVESTMENT STRATEGIES AND TYPES OF INVESTMENTS

INVESTMENT STRATEGY                                                     ALLOWABLE FOR THE FUNDS
-----------------------------------------------------------------------------------------------
Agency and government securities                                                  Yes
-----------------------------------------------------------------------------------------------
Borrowing                                                                         Yes
-----------------------------------------------------------------------------------------------
Cash/money market instruments                                                     Yes
-----------------------------------------------------------------------------------------------
Collateralized bond obligations                                                   Yes
-----------------------------------------------------------------------------------------------
Commercial paper                                                                  Yes
-----------------------------------------------------------------------------------------------
Common stock                                                                      Yes
-----------------------------------------------------------------------------------------------
Convertible securities                                                            Yes
-----------------------------------------------------------------------------------------------
Corporate bonds                                                                   Yes
-----------------------------------------------------------------------------------------------
Debt obligations                                                                  Yes
-----------------------------------------------------------------------------------------------
Depositary receipts                                                               Yes
-----------------------------------------------------------------------------------------------
Derivative instruments (including options and futures)                            Yes
-----------------------------------------------------------------------------------------------
Exchange-traded funds                                                             Yes
-----------------------------------------------------------------------------------------------
Floating rate loans                                                                No
-----------------------------------------------------------------------------------------------
Foreign currency transactions                                                     Yes
-----------------------------------------------------------------------------------------------
Foreign securities                                                                Yes
-----------------------------------------------------------------------------------------------
Funding agreements                                                                Yes
-----------------------------------------------------------------------------------------------
High yield debt securities (junk bonds)                                           Yes
-----------------------------------------------------------------------------------------------
Illiquid and restricted securities                                                Yes
-----------------------------------------------------------------------------------------------
Indexed securities                                                                Yes
-----------------------------------------------------------------------------------------------
Inflation protected securities                                                    Yes
-----------------------------------------------------------------------------------------------
Inverse floaters                                                                   No
-----------------------------------------------------------------------------------------------
Investment companies                                                              Yes
-----------------------------------------------------------------------------------------------
Lending of portfolio securities                                                   Yes
-----------------------------------------------------------------------------------------------
Loan participations                                                               Yes
-----------------------------------------------------------------------------------------------
Mortgage- and asset-backed securities                                             Yes
-----------------------------------------------------------------------------------------------
Mortgage dollar rolls                                                              No
-----------------------------------------------------------------------------------------------
Municipal obligations                                                             Yes
-----------------------------------------------------------------------------------------------
Preferred stock                                                                   Yes
-----------------------------------------------------------------------------------------------
Real estate investment trusts                                                     Yes
-----------------------------------------------------------------------------------------------
Repurchase agreements                                                             Yes
-----------------------------------------------------------------------------------------------
Reverse repurchase agreements                                                     Yes
-----------------------------------------------------------------------------------------------
Short sales                                                                       Yes
-----------------------------------------------------------------------------------------------
Sovereign debt                                                                    Yes
-----------------------------------------------------------------------------------------------
Structured investments                                                            Yes
-----------------------------------------------------------------------------------------------
Swap agreements                                                                   Yes
-----------------------------------------------------------------------------------------------
Variable- or floating-rate securities                                             Yes
-----------------------------------------------------------------------------------------------
Warrants                                                                          Yes
-----------------------------------------------------------------------------------------------
When-issued securities and forward commitments                                    Yes
-----------------------------------------------------------------------------------------------
Zero-coupon, step-coupon and pay-in-kind securities                               Yes
-----------------------------------------------------------------------------------------------

Statement of Additional Information - Oct. 3, 2007 Page 4


INFORMATION REGARDING RISKS AND INVESTMENT STRATEGIES

RISKS

The following is a summary of common risk characteristics. Following this summary is a description of certain investments and investment strategies and the risks most commonly associated with them (including certain risks not described below and, in some cases, a more comprehensive discussion of how the risks apply to a particular investment or investment strategy). A mutual fund's risk profile is largely defined by the fund's primary securities and investment strategies. However, most mutual funds are allowed to use certain other strategies and investments that may have different risk characteristics. Accordingly, one or more of the following types of risk may be associated with a fund at any time (for a description of principal risks for an individual fund, please see that fund's prospectus):

ACTIVE MANAGEMENT RISK. For a fund that is actively managed, its performance will reflect in part the ability of the portfolio managers to select securities and to make investment decisions that are suited to achieving the fund's investment objective. Due to its active management, a fund could underperform other mutual funds with similar investment objectives.

AFFILIATED FUND RISK. For funds-of-funds, the risk that the investment manager may have potential conflicts of interest in selecting underlying funds because the fees paid to it by some underlying funds are higher than the fees paid by other underlying funds. However, the investment manager is a fiduciary to the funds and is legally obligated to act in their best interests when selecting underlying funds, without taking fees into consideration.

BORROWING RISK. To the extent the fund borrows money for investment purposes, which is commonly referred to as "leveraging," the fund's exposure to fluctuations in the prices of its assets will be increased as compared to the fund's exposure if the fund did not borrow. The fund's borrowing activities will exaggerate any increase or decrease in the net asset value of the fund. In addition, the interest which the fund pays on borrowed money, together with any additional costs of maintaining a borrowing facility, are additional costs borne by the fund and could reduce or eliminate any net investment profits. Unless profits on assets acquired with borrowed funds exceed the costs of borrowing, the use of borrowing will diminish the investment performance of the fund compared with what it would have been without borrowing. When the fund borrows money it must comply with certain asset coverage requirements, which at times may require the fund to dispose of some of its holdings, even though it may be disadvantageous to do so at the time.

CREDIT RISK. Credit risk is the risk that the issuer of a security, or the counterparty to a contract, will default or otherwise become unable or unwilling to honor a financial obligation, such as payments due on a bond or a note. If the fund purchases unrated securities, or if the rating of a security is reduced after purchase, the fund will depend on the investment manager's analysis of credit risk more heavily than usual.

COUNTERPARTY RISK. Counterparty risk is the risk that a counterparty to a financial instrument entered into by the fund or held by a special purpose or structured vehicle becomes bankrupt or otherwise fails to perform its obligations due to financial difficulties. The fund may experience significant delays in obtaining any recovery in a bankruptcy or other reorganization proceeding. The fund may obtain only limited recovery or may obtain no recovery in such circumstances. The fund will typically enter into financial instrument transactions with counterparties whose credit rating is investment grade, or, if unrated, determined to be of comparable quality by the investment manager.

DERIVATIVES RISK. Derivatives are financial instruments that have a value which depends upon, or is derived from, the value of something else, such as one or more underlying securities, pools of securities, options, futures, indexes or currencies. Gains or losses involving derivative instruments may be substantial, because a relatively small price movement in the underlying security(ies), instrument, currency or index may result in a substantial gain or loss for the Fund. Derivative instruments in which the Fund invests will typically increase the Fund's exposure to Principal Risks to which it is otherwise exposed, and may expose the Fund to additional risks, including counterparty credit risk, leverage risk, hedging risk, correlation risk, and liquidity risk.

Counterparty credit risk is the risk that a counterparty to the derivative instrument becomes bankrupt or otherwise fails to perform its obligations due to financial difficulties, and the Fund may obtain no recovery of its investment or may only obtain a limited recovery, and any recovery may be delayed.

Hedging risk is the risk that derivative instruments used to hedge against an opposite position may offset losses, but they may also offset gains.

Correlation Risk is related to hedging risk and is the risk that there may be an incomplete correlation between the hedge and the opposite position, which may result in increased or unanticipated losses.

Statement of Additional Information - Oct. 3, 2007 Page 5


Liquidity risk is the risk that the derivative instrument may be difficult or impossible to sell or terminate, which may cause the Fund to be in a position to do something the investment manager would not otherwise choose, including accepting a lower price for the derivative instrument, selling other investments or foregoing another, more appealing investment opportunity.

Leverage risk is the risk that losses from the derivative instrument may be greater than the amount invested in the derivative instrument. Certain derivatives have the potential for unlimited losses, regardless of the size of the initial investment.

ETF RISK. The price movement of an ETF may not track the underlying index and may result in a loss. In addition, shareholders bear both their proportionate share of the Fund's expenses and similar expenses incurred through ownership of the ETF.

FOREIGN/EMERGING MARKETS RISK. The following are all components of foreign/emerging markets risk:

Country risk includes the political, economic, and other conditions of the country. These conditions include lack of publicly available information, less government oversight (including lack of accounting, auditing, and financial reporting standards), the possibility of government-imposed restrictions, and even the nationalization of assets. The liquidity of foreign investments may be more limited than for most U.S. investments, which means that, at times it may be difficult to sell foreign securities at desirable prices.

Currency risk results from the constantly changing exchange rates between local currency and the U.S. dollar. Whenever the fund holds securities valued in a foreign currency or holds the currency, changes in the exchange rate add to or subtract from the value of the investment.

Custody risk refers to the process of clearing and settling trades. It also covers holding securities with local agents and depositories. Low trading volumes and volatile prices in less developed markets make trades harder to complete and settle. Local agents are held only to the standard of care of the local market. Governments or trade groups may compel local agents to hold securities in designated depositories that are not subject to independent evaluation. The less developed a country's securities market is, the greater the likelihood of problems occurring.

Emerging markets risk includes the dramatic pace of change (economic, social, and political) in these countries as well as the other considerations listed above. These markets are in early stages of development and are extremely volatile. They can be marked by extreme inflation, devaluation of currencies, dependence on trade partners, and hostile relations with neighboring countries.

INFLATION PROTECTED SECURITIES RISK. Inflation-protected debt securities tend to react to change in real interest rates. Real interest rates can be described as nominal interest rates minus the expected impact of inflation. In general, the price of an inflation-protected debt security falls when real interest rates rise, and rises when real interest rates fall. Interest payments on inflation- protected debt securities will vary as the principal and/or interest is adjusted for inflation and may be more volatile than interest paid on ordinary bonds. In periods of deflation, the fund may have no income at all. Income earned by a shareholder depends on the amount of principal invested and that principal will not grow with inflation unless the investor reinvests the portion of fund distributions that comes from inflation adjustments.

INITIAL PUBLIC OFFERING (IPO) RISK. IPOs are subject to many of the same risks as investing in companies with smaller market capitalizations. To the extent a fund determines to invest in IPOs it may not be able to invest to the extent desired, because, for example, only a small portion (if any) of the securities being offered in an IPO may be made available. The investment performance of a fund during periods when it is unable to invest significantly or at all in IPOs may be lower than during periods when the fund is able to do so. In addition, as a Fund increases in size, the impact of IPOs on the Fund's performance will generally decrease. IPOs will frequently be sold within 12 months of purchase. This may result in increased short-term capital gains, which will be taxable to shareholders as ordinary income.

INTEREST RATE RISK. The securities in the portfolio are subject to the risk of losses attributable to changes in interest rates. Interest rate risk is generally associated with bond prices: when interest rates rise, bond prices fall. In general, the longer the maturity or duration of a bond, the greater its sensitivity to changes in interest rates.

ISSUER RISK. An issuer, or the value of its stocks or bonds, may perform poorly. Poor performance may be caused by poor management decisions, competitive pressures, breakthroughs in technology, reliance on suppliers, labor problems or shortages, corporate restructurings, fraudulent disclosures, or other factors.

LEVERAGE RISK. Leverage occurs when the Fund increases its assets available for investment using borrowings, short sales, derivatives, or similar instruments or techniques. Due to the fact that short sales involve borrowing securities and then selling them, the Fund's short sales effectively leverage the Fund's assets. The use of leverage may make any change in the Fund's net asset value ("NAV") even greater and thus result in increased volatility of returns. The Fund's assets that are used as collateral to secure the short sales may decrease in value while the short positions are outstanding, which may force the Fund

Statement of Additional Information - Oct. 3, 2007 Page 6


to use its other assets to increase the collateral. Leverage can also create an interest expense that may lower the Fund's overall returns. Lastly, there is no guarantee that a leveraging strategy will be successful.

LIQUIDITY RISK. The risk associated from a lack of marketability of securities which may make it difficult or impossible to sell at desirable prices in order to minimize loss. The Fund may have to lower the selling price, sell other investments, or forego another, more appealing investment opportunity.

MARKET RISK. The market value of securities may fall or fail to rise. Market risk may affect a single issuer, sector of the economy, industry, or the market as a whole. The market value of securities may fluctuate, sometimes rapidly and unpredictably. This risk is generally greater for small and mid-sized companies, which tend to be more vulnerable to adverse developments. In addition, focus on a particular style, for example, investment in growth or value securities, may cause the Fund to underperform other mutual funds if that style falls out of favor with the market.

PREPAYMENT AND EXTENSION RISK. The risk that a bond or other security might be called, or otherwise converted, prepaid, or redeemed, before maturity. This risk is primarily associated with asset-backed securities, including mortgage backed securities. If a security is converted, prepaid, or redeemed, before maturity, particularly during a time of declining interest rates, the portfolio managers may not be able to reinvest in securities providing as high a level of income, resulting in a reduced yield to the fund. Conversely, as interest rates rise, the likelihood of prepayment decreases. The portfolio managers may be unable to capitalize on securities with higher interest rates because the Fund's investments are locked in at a lower rate for a longer period of time.

QUANTITATIVE MODEL RISK. Securities selected using quantitative methods may perform differently from the market as a whole as a result of the factors used in the quantitative method, the weight placed on each factor, and changes in the factors' historical trends. The quantitative methodology employed by the investment manager has been extensively tested using historical securities market data, but has only recently begun to be used to manage open-end mutual funds. There can be no assurance that the methodology will enable the fund to achieve its objective.

REINVESTMENT RISK. The risk that an investor will not be able to reinvest income or principal at the same rate it currently is earning.

SECTOR RISK. Investments that are concentrated in a particular issuer, geographic region, or sector will be more susceptible to changes in price. The more a fund diversifies, the more it spreads risk and potentially reduces the risks of loss and volatility.

SHORT SALES RISK. The fund may make short sales, which involves selling a security the fund does not own in anticipation that the security's price will decline. The fund must borrow those securities to make delivery to the buyer. The fund may not always be able to borrow a security it wants to sell short. The fund will suffer a loss if it sells a security short and the value of the security rises rather than falls. It is possible that the fund's long positions will decline in value at the same time that the value of its short positions increase, thereby increasing potential losses to the fund. Short sales expose the fund to the risk that it will be required to buy the security sold short (also known as "covering" the short position) at a time when the security has appreciated in value, thus resulting in a loss to the fund. The fund may also be required to close out a short position at a time when it might not otherwise choose, for example, if the lender of the security calls it back, which may have the effect of reducing or eliminating potential gain, or cause the fund to realize a loss. Short positions introduce more risk to the fund than long positions (purchases) because the maximum sustainable loss on a security purchased (held long) is limited to the amount paid for the security plus the transaction costs, whereas there is no maximum attainable price of the shorted security. Therefore, in theory, securities sold short have unlimited risk. Additionally, the fund's use of short sales in effect "leverages" the fund, as the fund intends to use the cash proceeds from short sales to invest in additional long positions. This leverage effect potentially exposes the fund to greater risks due to unanticipated market movements, which may magnify losses and increase the volatility of returns. See Leverage Risk and Market Risk.

SMALL AND MID-SIZED COMPANY RISK. Investments in small and medium companies often involve greater risks than investments in larger, more established companies because small and medium companies may lack the management experience, financial resources, product diversification, experience, and competitive strengths of larger companies. Additionally, in many instances the securities of small and medium companies are traded only over-the-counter or on regional securities exchanges and the frequency and volume of their trading is substantially less and may be more volatile than is typical of larger companies.

INVESTMENT STRATEGIES

The following information supplements the discussion of each fund's investment objectives, policies, and strategies that are described in the prospectus and in this SAI. The following describes strategies that many mutual funds use and types of securities that they purchase. Please refer to the table titled Investment Strategies and Types of Investments to see which are applicable to these funds.

Statement of Additional Information - Oct. 3, 2007 Page 7


AGENCY AND GOVERNMENT SECURITIES
The U.S. government and its agencies issue many different types of securities. U.S. Treasury bonds, notes, and bills and securities, including mortgage pass through certificates of the Government National Mortgage Association (GNMA), are guaranteed by the U.S. government.

Other U.S. government securities are issued or guaranteed by federal agencies or government-sponsored enterprises but are not guaranteed by the U.S. government. This may increase the credit risk associated with these investments. Government- sponsored entities issuing securities include privately owned, publicly chartered entities created to reduce borrowing costs for certain sectors of the economy, such as farmers, homeowners, and students. They include the Federal Farm Credit Bank System, Farm Credit Financial Assistance Corporation, Federal Home Loan Bank, Federal Home Loan Mortgage Corporation (FHLMC), Federal National Mortgage Association (FNMA), Student Loan Marketing Association (SLMA), and Resolution Trust Corporation (RTC). Government-sponsored entities may issue discount notes (with maturities ranging from overnight to 360 days) and bonds. Agency and government securities are subject to the same concerns as other debt obligations. (See also Debt Obligations and Mortgage- and Asset-Backed Securities.)

Although one or more of the other risks described in this SAI may apply, the largest risks associated with agency and government securities include:
Inflation Risk, Interest Rate Risk, Prepayment and Extension Risk, and Reinvestment Risk.

BORROWING
If the fund borrows money, its share price may be subject to greater fluctuation until the borrowing is paid off. If the fund makes additional investments while borrowings are outstanding, this may be considered a form of leverage. Under the 1940 Act, the fund is required to maintain continuous asset coverage of 300% with respect to such borrowings and to sell (within three days) sufficient portfolio holdings to restore such coverage if it should decline to less than 300% due to market fluctuations or otherwise, even if such liquidations of the fund's holdings may be disadvantageous from an investment standpoint. Leveraging by means of borrowing may exaggerate the effect of any increase or decrease in the value of portfolio securities or the fund's NAV, and money borrowed will be subject to interest and other costs (which may include commitment fees and/or the cost of maintaining minimum average balances) which may or may not exceed the income received from the securities purchased with borrowed funds.

Although one or more of the other risks described in this SAI may apply, the largest risks associated with borrowing include: Inflation Risk.

CASH/MONEY MARKET INSTRUMENTS
Cash-equivalent investments include short-term U.S. and Canadian government securities and negotiable certificates of deposit, non-negotiable fixed-time deposits, bankers' acceptances, and letters of credit of banks or savings and loan associations having capital, surplus, and undivided profits (as of the date of its most recently published annual financial statements) in excess of $100 million (or the equivalent in the instance of a foreign branch of a U.S. bank) at the date of investment. A fund also may purchase short-term notes and obligations of U.S. and foreign banks and corporations and may use repurchase agreements with broker-dealers registered under the Securities Exchange Act of 1934 and with commercial banks. (See also Commercial Paper, Debt Obligations, Repurchase Agreements, and Variable- or Floating-Rate Securities.) These types of instruments generally offer low rates of return and subject a fund to certain costs and expenses. See Appendix A for a discussion of securities ratings.

Bankers' Acceptances
Bankers' acceptances are marketable short-term credit instruments used to finance the import, export, transfer or storage of goods. They are termed "accepted" when a bank guarantees their payment at maturity.

Bank Certificates of Deposit
Bank certificates of deposit are certificates issued against funds deposited in a bank (including eligible foreign branches of U.S. banks), are for a definite period of time, earn a specified rate of return and are normally negotiable.

A fund may invest its daily cash balance in RiverSource Short-Term Cash Fund, a money market fund established for the exclusive use of the RiverSource funds and other institutional clients of RiverSource Investments.

Although one or more of the other risks described in this SAI may apply, the largest risks associated with cash/money market instruments include: Credit Risk and Inflation Risk.

COLLATERALIZED BOND OBLIGATIONS
Collateralized bond obligations (CBOs) are investment grade bonds backed by a pool of bonds, which may include junk bonds. CBOs are similar in concept to collateralized mortgage obligations (CMOs), but differ in that CBOs represent

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different degrees of credit quality rather than different maturities. (See also Mortgage- and Asset-Backed Securities.) Underwriters of CBOs package a large and diversified pool of high-risk, high-yield junk bonds, which is then separated into "tiers." Typically, the first tier represents the higher quality collateral and pays the lowest interest rate; the second tier is backed by riskier bonds and pays a higher rate; the third tier represents the lowest credit quality and instead of receiving a fixed interest rate receives the residual interest payments -- money that is left over after the higher tiers have been paid. CBOs, like CMOs, are substantially overcollateralized and this, plus the diversification of the pool backing them, may earn certain of the tiers investment-grade bond ratings. Holders of third-tier CBOs stand to earn high yields or less money depending on the rate of defaults in the collateral pool.
(See also High-Yield Debt Securities (Junk Bonds).)

Although one or more of the other risks described in this SAI may apply, the largest risks associated with CBOs include: Credit Risk, Interest Rate Risk and Prepayment and Extension Risk.

COMMERCIAL PAPER
Commercial paper is a short-term debt obligation with a maturity ranging from 2 to 270 days issued by banks, corporations, and other borrowers. It is sold to investors with temporary idle cash as a way to increase returns on a short-term basis. These instruments are generally unsecured, which increases the credit risk associated with this type of investment. (See also Debt Obligations and Illiquid and Restricted Securities.)

Although one or more of the other risks described in this SAI may apply, the largest risks associated with commercial paper include: Credit Risk and Liquidity Risk.

COMMON STOCK
Common stock represents units of ownership in a corporation. Owners typically are entitled to vote on the selection of directors and other important matters as well as to receive dividends on their holdings. In the event that a corporation is liquidated, the claims of secured and unsecured creditors and owners of bonds and preferred stock take precedence over the claims of those who own common stock.

The price of common stock is generally determined by corporate earnings, type of products or services offered, projected growth rates, experience of management, liquidity, and general market conditions for the markets on which the stock trades.

Although one or more of the other risks described in this SAI may apply, the largest risks associated with common stock include: Issuer Risk, Market Risk, and Small and Mid-Sized Company Risk.

CONVERTIBLE SECURITIES
Convertible securities are bonds, debentures, notes, preferred stocks, or other securities that may be converted into common, preferred or other securities of the same or a different issuer within a particular period of time at a specified price. Some convertible securities, such as preferred equity-redemption cumulative stock (PERCs), have mandatory conversion features. Others are voluntary. A convertible security entitles the holder to receive interest normally paid or accrued on debt or the dividend paid on preferred stock until the convertible security matures or is redeemed, converted, or exchanged. Convertible securities have unique investment characteristics in that they generally (i) have higher yields than common stocks but lower yields than comparable non-convertible securities, (ii) are less subject to fluctuation in value than the underlying stock since they have fixed income characteristics, and (iii) provide the potential for capital appreciation if the market price of the underlying common stock increases.

The value of a convertible security is a function of its "investment value" (determined by its yield in comparison with the yields of other securities of comparable maturity and quality that do not have a conversion privilege) and its "conversion value" (the security's worth, at market value, if converted into the underlying common stock). The investment value of a convertible security is influenced by changes in interest rates, with investment value declining as interest rates increase and increasing as interest rates decline. The credit standing of the issuer and other factors also may have an effect on the convertible security's investment value. The conversion value of a convertible security is determined by the market price of the underlying common stock. If the conversion value is low relative to the investment value, the price of the convertible security is governed principally by its investment value. Generally, the conversion value decreases as the convertible security approaches maturity. To the extent the market price of the underlying common stock approaches or exceeds the conversion price, the price of the convertible security will be increasingly influenced by its conversion value. A convertible security generally will sell at a premium over its conversion value by the extent to which investors place value on the right to acquire the underlying common stock while holding a fixed income security.

Although one or more of the other risks described in this SAI may apply, the largest risks associated with convertible securities include: Interest Rate Risk, Issuer Risk, Market Risk, Prepayment and Extension Risk, and Reinvestment Risk.

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CORPORATE BONDS
Corporate bonds are debt obligations issued by private corporations, as distinct from bonds issued by a government agency or a municipality. Corporate bonds typically have four distinguishing features: (1) they are taxable; (2) they have a par value of $1,000; (3) they have a term maturity, which means they come due all at once; and (4) many are traded on major exchanges. Corporate bonds are subject to the same concerns as other debt obligations. (See also Debt Obligations and High-Yield Debt Securities (Junk Bonds).) Corporate bonds may be either secured or unsecured. Unsecured corporate bonds are generally referred to as "debentures." See Appendix A for a discussion of securities ratings.

Although one or more of the other risks described in this SAI may apply, the largest risks associated with corporate bonds include: Credit Risk, Interest Rate Risk, Issuer Risk, Prepayment and Extension Risk, and Reinvestment Risk.

DEBT OBLIGATIONS
Many different types of debt obligations exist (for example, bills, bonds, or notes). Issuers of debt obligations have a contractual obligation to pay interest at a fixed, variable or floating rate on specified dates and to repay principal on a specified maturity date. Certain debt obligations (usually intermediate- and long-term bonds) have provisions that allow the issuer to redeem or "call" a bond before its maturity. Issuers are most likely to call these securities during periods of falling interest rates. When this happens, an investor may have to replace these securities with lower yielding securities, which could result in a lower return.

The market value of debt obligations is affected primarily by changes in prevailing interest rates and the issuers perceived ability to repay the debt. The market value of a debt obligation generally reacts inversely to interest rate changes. When prevailing interest rates decline, the price usually rises, and when prevailing interest rates rise, the price usually declines.

In general, the longer the maturity of a debt obligation, the higher its yield and the greater the sensitivity to changes in interest rates. Conversely, the shorter the maturity, the lower the yield but the greater the price stability.

As noted, the values of debt obligations also may be affected by changes in the credit rating or financial condition of their issuers. Generally, the lower the quality rating of a security, the higher the degree of risk as to the payment of interest and return of principal. To compensate investors for taking on such increased risk, those issuers deemed to be less creditworthy generally must offer their investors higher interest rates than do issuers with better credit ratings. (See also Agency and Government Securities, Corporate Bonds, and High- Yield Debt Securities (Junk Bonds).)

Generally, debt obligations that are investment grade are those that have been rated in one of the top four credit quality categories by two out of the three independent rating agencies. In the event that a debt obligation has been rated by only two agencies, the most conservative, or lower, rating must be in one of the top four credit quality categories in order for the security to be considered investment grade. If only one agency has rated the debt obligation, that rating must be in one of the top four credit quality categories for the security to be considered investment grade. See Appendix A for a discussion of securities ratings.

All ratings limitations are applied at the time of purchase. Subsequent to purchase, a debt security may cease to be rated or its rating may be reduced below the minimum required for purchase by a fund. Neither event will require the sale of such a security, but it will be a factor in considering whether to continue to hold the security. To the extent that ratings change as a result of changes in a rating agency or its rating system, a fund will attempt to use comparable ratings as standards for selecting investments.

Although one or more of the other risks described in this SAI may apply, the largest risks associated with debt obligations include: Credit Risk, Interest Rate Risk, Issuer Risk, Prepayment and Extension Risk, and Reinvestment Risk.

DEPOSITARY RECEIPTS
Some foreign securities are traded in the form of American Depositary Receipts (ADRs). ADRs are receipts typically issued by a U.S. bank or trust company evidencing ownership of the underlying securities of foreign issuers. European Depositary Receipts (EDRs) and Global Depositary Receipts (GDRs) are receipts typically issued by foreign banks or trust companies, evidencing ownership of underlying securities issued by either a foreign or U.S. issuer. Generally, depositary receipts in registered form are designed for use in the U.S. and depositary receipts in bearer form are designed for use in securities markets outside the U.S. Depositary receipts may not necessarily be denominated in the same currency as the underlying securities into which they may be converted. Depositary receipts involve the risks of other investments in foreign securities. In addition, ADR holders may not have all the legal rights of shareholders and may experience difficulty in receiving shareholder communications. (See also Common Stock and Foreign Securities.)

Although one or more of the other risks described in this SAI may apply, the largest risks associated with depositary receipts include: Foreign/Emerging Markets Risk, Issuer Risk, and Market Risk.

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DERIVATIVE INSTRUMENTS
Derivative instruments are commonly defined to include securities or contracts whose values depend, in whole or in part, on (or "derive" from) the value of one or more other assets, such as securities, currencies, or commodities.

A derivative instrument generally consists of, is based upon, or exhibits characteristics similar to options or forward contracts. Such instruments may be used to maintain cash reserves while remaining fully invested, to offset anticipated declines in values of investments, to facilitate trading, to reduce transaction costs, or to pursue higher investment returns. Derivative instruments are characterized by requiring little or no initial payment. Their value changes daily based on a security, a currency, a group of securities or currencies, or an index. A small change in the value of the underlying security, currency, or index can cause a sizable percentage gain or loss in the price of the derivative instrument.

Options and forward contracts are considered to be the basic "building blocks" of derivatives. For example, forward-based derivatives include forward contracts, swap contracts, and exchange-traded futures. Forward-based derivatives are sometimes referred to generically as "futures contracts." Option-based derivatives include privately negotiated, over-the-counter (OTC) options (including caps, floors, collars, and options on futures) and exchange- traded options on futures. Diverse types of derivatives may be created by combining options or futures in different ways, and by applying these structures to a wide range of underlying assets.

Options. An option is a contract. A person who buys a call option for a security has the right to buy the security at a set price for the length of the contract. A person who sells a call option is called a writer. The writer of a call option agrees for the length of the contract to sell the security at the set price when the buyer wants to exercise the option, no matter what the market price of the security is at that time. A person who buys a put option has the right to sell a security at a set price for the length of the contract. A person who writes a put option agrees to buy the security at the set price if the purchaser wants to exercise the option during the length of the contract, no matter what the market price of the security is at that time. An option is covered if the writer owns the security (in the case of a call) or sets aside the cash or securities of equivalent value (in the case of a put) that would be required upon exercise.

The price paid by the buyer for an option is called a premium. In addition to the premium, the buyer generally pays a broker a commission. The writer receives a premium, less another commission, at the time the option is written. The premium received by the writer is retained whether or not the option is exercised. A writer of a call option may have to sell the security for a below- market price if the market price rises above the exercise price. A writer of a put option may have to pay an above-market price for the security if its market price decreases below the exercise price.

When an option is purchased, the buyer pays a premium and a commission. It then pays a second commission on the purchase or sale of the underlying security when the option is exercised. For record keeping and tax purposes, the price obtained on the sale of the underlying security is the combination of the exercise price, the premium, and both commissions.

One of the risks an investor assumes when it buys an option is the loss of the premium. To be beneficial to the investor, the price of the underlying security must change within the time set by the option contract. Furthermore, the change must be sufficient to cover the premium paid, the commissions paid both in the acquisition of the option and in a closing transaction or in the exercise of the option and sale (in the case of a call) or purchase (in the case of a put) of the underlying security. Even then, the price change in the underlying security does not ensure a profit since prices in the option market may not reflect such a change.

Options on many securities are listed on options exchanges. If a fund writes listed options, it will follow the rules of the options exchange. Options are valued at the close of the New York Stock Exchange. An option listed on a national exchange, Chicago Board Options Exchange, or NASDAQ will be valued at the last quoted sales price or, if such a price is not readily available, at the mean of the last bid and ask prices.

Options on certain securities are not actively traded on any exchange, but may be entered into directly with a dealer. These options may be more difficult to close. If an investor is unable to effect a closing purchase transaction, it will not be able to sell the underlying security until the call written by the investor expires or is exercised.

Futures Contracts. A futures contract is a sales contract between a buyer (holding the "long" position) and a seller (holding the "short" position) for an asset with delivery deferred until a future date. The buyer agrees to pay a fixed price at the agreed future date and the seller agrees to deliver the asset. The seller hopes that the market price on the delivery date is less than the agreed upon price, while the buyer hopes for the contrary. Many futures contracts trade in a manner similar to the way a stock trades on a stock exchange and the commodity exchanges.

Generally, a futures contract is terminated by entering into an offsetting transaction. An offsetting transaction is effected by an investor taking an opposite position. At the time a futures contract is made, a good faith deposit called initial margin is set up. Daily thereafter, the futures contract is valued and the payment of variation margin is required so that each day a buyer would pay out cash in an amount equal to any decline in the contract's value or receive cash equal to any increase. At

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the time a futures contract is closed out, a nominal commission is paid, which is generally lower than the commission on a comparable transaction in the cash market.

Futures contracts may be based on various securities, securities indexes (such as the S&P 500 Index), foreign currencies and other financial instruments and indexes.

A fund may engage in futures and related options transactions to produce incremental earnings, to hedge existing positions, and to increase flexibility. The fund intends to comply with Rule 4.5 of the Commodity Futures Trading Commission (CFTC), under which a mutual fund is exempt from the definition of a "commodity pool operator." The fund, therefore, is not subject to registration or regulation as a pool operator, meaning that the fund may invest in futures contracts without registering with the CFTC.

Options on Futures Contracts. Options on futures contracts give the holder a right to buy or sell futures contracts in the future. Unlike a futures contract, which requires the parties to the contract to buy and sell a security on a set date (some futures are settled in cash), an option on a futures contract merely entitles its holder to decide on or before a future date (within nine months of the date of issue) whether to enter into a contract. If the holder decides not to enter into the contract, all that is lost is the amount (premium) paid for the option. Further, because the value of the option is fixed at the point of sale, there are no daily payments of cash to reflect the change in the value of the underlying contract. However, since an option gives the buyer the right to enter into a contract at a set price for a fixed period of time, its value does change daily.

One of the risks in buying an option on a futures contract is the loss of the premium paid for the option. The risk involved in writing options on futures contracts an investor owns, or on securities held in its portfolio, is that there could be an increase in the market value of these contracts or securities. If that occurred, the option would be exercised and the asset sold at a lower price than the cash market price. To some extent, the risk of not realizing a gain could be reduced by entering into a closing transaction. An investor could enter into a closing transaction by purchasing an option with the same terms as the one previously sold. The cost to close the option and terminate the investor's obligation, however, might still result in a loss. Further, the investor might not be able to close the option because of insufficient activity in the options market. Purchasing options also limits the use of monies that might otherwise be available for long-term investments.

Options on Stock Indexes. Options on stock indexes are securities traded on national securities exchanges. An option on a stock index is similar to an option on a futures contract except all settlements are in cash. A fund exercising a put, for example, would receive the difference between the exercise price and the current index level.

Tax and Accounting Treatment. As permitted under federal income tax laws and to the extent a fund is allowed to invest in futures contracts, a fund would intend to identify futures contracts as part of a mixed straddle and not mark them to market, that is, not treat them as having been sold at the end of the year at market value. If a fund is using short futures contracts for hedging purposes, the fund may be required to defer recognizing losses incurred on short futures contracts and on underlying securities. Any losses incurred on securities that are part of a straddle may be deferred to the extent there is unrealized appreciation of the offsetting position until the offsetting position is sold. Federal income tax treatment of gains or losses from transactions in options, options on futures contracts and indexes will depend on whether the option is a section 1256 contract. If the option is a non-equity option, a fund would either make a 1256(d) election and treat the option as a mixed straddle or mark to market the option at fiscal year end and treat the gain/loss as 40% short-term and 60% long-term.

The IRS has ruled publicly that an exchange-traded call option is a security for purposes of the 50%-of-assets test and that its issuer is the issuer of the underlying security, not the writer of the option, for purposes of the diversification requirements.

Accounting for futures contracts will be according to generally accepted accounting principles. Initial margin deposits will be recognized as assets due from a broker (a fund's agent in acquiring the futures position). During the period the futures contract is open, changes in value of the contract will be recognized as unrealized gains or losses by marking to market on a daily basis to reflect the market value of the contract at the end of each day's trading. Variation margin payments will be made or received depending upon whether gains or losses are incurred. All contracts and options will be valued at the last- quoted sales price on their primary exchange.

Other Risks of Derivatives. The primary risk of derivatives is the same as the risk of the underlying asset, namely that the value of the underlying asset may go up or down. Adverse movements in the value of an underlying asset can expose an investor to losses. Derivative instruments may include elements of leverage and, accordingly, the fluctuation of the value of the derivative instrument in relation to the underlying asset may be magnified. The successful use of derivative instruments depends upon a variety of factors, particularly the investment manager's ability to predict movements of the securities, currencies, and commodity markets, which requires different skills than predicting changes in the prices of individual securities. There can be no assurance that any particular strategy will succeed.

Another risk is the risk that a loss may be sustained as a result of the failure of a counterparty to comply with the terms of a derivative instrument. The counterparty risk for exchange-traded derivative instruments is generally less than for privately-

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negotiated or OTC derivative instruments, since generally a clearing agency, which is the issuer or counterparty to each exchange-traded instrument, provides a guarantee of performance. For privately-negotiated instruments, there is no similar clearing agency guarantee. In all transactions, an investor will bear the risk that the counterparty will default, and this could result in a loss of the expected benefit of the derivative transaction and possibly other losses.

When a derivative transaction is used to completely hedge another position, changes in the market value of the combined position (the derivative instrument plus the position being hedged) result from an imperfect correlation between the price movements of the two instruments. With a perfect hedge, the value of the combined position remains unchanged for any change in the price of the underlying asset. With an imperfect hedge, the values of the derivative instrument and its hedge are not perfectly correlated. For example, if the value of a derivative instrument used in a short hedge (such as writing a call option, buying a put option, or selling a futures contract) increased by less than the decline in value of the hedged investment, the hedge would not be perfectly correlated. Such a lack of correlation might occur due to factors unrelated to the value of the investments being hedged, such as speculative or other pressures on the markets in which these instruments are traded.

Derivatives also are subject to the risk that they cannot be sold, closed out, or replaced quickly at or very close to their fundamental value. Generally, exchange contracts are very liquid because the exchange clearinghouse is the counterparty of every contract. OTC transactions are less liquid than exchange- traded derivatives since they often can only be closed out with the other party to the transaction.

Another risk is caused by the legal unenforcibility of a party's obligations under the derivative. A counterparty that has lost money in a derivative transaction may try to avoid payment by exploiting various legal uncertainties about certain derivative products. (See also Foreign Currency Transactions.)

Although one or more of the other risks described in this SAI may apply, the largest risks associated with derivative instruments include: Derivatives Risk and Liquidity Risk.

EXCHANGE-TRADED FUNDS
Exchange-traded funds (ETFs) represent shares of ownership in mutual funds, unit investment trusts or depositary receipts. ETFs hold portfolios of securities that are designed to replicate, as closely as possible before expenses, the price and yield of a specified market index. The performance results of ETFs will not replicate exactly the performance of the pertinent index due to transaction and other expenses, including fees to service providers, borne by ETFs. ETF shares are sold and redeemed at net asset value only in large blocks called creation units and redemption units, respectively. ETF shares also may be purchased and sold in secondary market trading on national securities exchanges, which allows investors to purchase and sell ETF shares at their market price throughout the day.

Although one or more of the other risks described in this SAI may apply, investments in ETFs involve the same risks associated with a direct investment in the types of securities included in the indices the ETFs are designed to replicate, including Market Risk. Shares of an ETF may trade at a market price that is less than their net asset value and an active trading market in such shares may not develop or continue. Finally, there can be no assurance that the portfolio of securities purchased by an ETF to replicate a particular index will replicate such index.

FOREIGN CURRENCY TRANSACTIONS
Investments in foreign countries usually involve currencies of foreign countries. In addition, a fund may hold cash and cash equivalent investments in foreign currencies. As a result, the value of a fund's assets as measured in U.S. dollars may be affected favorably or unfavorably by changes in currency exchange rates and exchange control regulations. Also, a fund may incur costs in connection with conversions between various currencies. Currency exchange rates may fluctuate significantly over short periods of time causing a fund's NAV (Net Asset Value) to fluctuate. Currency exchange rates are generally determined by the forces of supply and demand in the foreign exchange markets, actual or anticipated changes in interest rates, and other complex factors. Currency exchange rates also can be affected by the intervention of U.S. or foreign governments or central banks, or the failure to intervene, or by currency controls or political developments.

Spot Rates and Derivative Instruments. A fund may conduct its foreign currency exchange transactions either at the spot (cash) rate prevailing in the foreign currency exchange market or by entering into forward currency exchange contracts (forward contracts). (See also Derivative Instruments.) These contracts are traded in the interbank market conducted directly between currency traders (usually large commercial banks) and their customers. Because foreign currency transactions occurring in the interbank market might involve substantially larger amounts than those involved in the use of such derivative instruments, a fund could be disadvantaged by having to deal in the odd lot market for the underlying foreign currencies at prices that are less favorable than for round lots.

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A fund may enter into forward contracts for a variety of reasons, but primarily it will enter into such contracts for risk management (hedging) or for investment purposes.

A fund may enter into forward contracts to settle a security transaction or handle dividend and interest collection. When a fund enters into a contract for the purchase or sale of a security denominated in a foreign currency or has been notified of a dividend or interest payment, it may desire to lock in the price of the security or the amount of the payment, usually in U.S. dollars, although it could desire to lock in the price of the security in another currency. By entering into a forward contract, a fund would be able to protect itself against a possible loss resulting from an adverse change in the relationship between different currencies from the date the security is purchased or sold to the date on which payment is made or received or when the dividend or interest is actually received.

A fund may enter into forward contracts when management of the fund believes the currency of a particular foreign country may decline in value relative to another currency. When selling currencies forward in this fashion, a fund may seek to hedge the value of foreign securities it holds against an adverse move in exchange rates. The precise matching of forward contract amounts and the value of securities involved generally will not be possible since the future value of securities in foreign currencies more than likely will change between the date the forward contract is entered into and the date it matures. The projection of short-term currency market movements is extremely difficult and successful execution of a short-term hedging strategy is highly uncertain. Unless specifically permitted, a fund would not enter into such forward contracts or maintain a net exposure to such contracts when consummating the contracts would obligate it to deliver an amount of foreign currency in excess of the value of its securities or other assets denominated in that currency.

This method of protecting the value of the fund's securities against a decline in the value of a currency does not eliminate fluctuations in the underlying prices of the securities. It simply establishes a rate of exchange that can be achieved at some point in time. Although forward contracts tend to minimize the risk of loss due to a decline in value of hedged currency, they tend to limit any potential gain that might result should the value of such currency increase.

A fund may also enter into forward contracts when its management believes the currency of a particular country will increase in value relative to another currency. A fund may buy currencies forward to gain exposure to a currency without incurring the additional costs of purchasing securities denominated in that currency.

The fund may invest in a combination of forward currency contracts and U.S. dollar-denominated market instruments in an attempt to obtain an investment result that is substantially the same as a direct investment in a foreign currency-denominated instrument. For example, the combination of U.S. dollar- denominated instruments with long forward currency exchange contracts creates a position economically equivalent to a position in the foreign currency, in anticipation of an increase in the value of the foreign currency against the U.S. dollar. Conversely, the combination of U.S. dollar-denominated instruments with short forward currency exchange contracts is economically equivalent to borrowing the foreign currency for delivery at a specified date in the future, in anticipation of a decrease in the value of the foreign currency against the U.S. dollar. Unanticipated changes in the currency exchange results could result in poorer performance for funds that enter into these types of transactions.

A fund may designate cash or securities in an amount equal to the value of the fund's total assets committed to consummating forward contracts entered into under the circumstance set forth above. If the value of the securities declines, additional cash or securities will be designated on a daily basis so that the value of the cash or securities will equal the amount of the fund's commitments on such contracts. At maturity of a forward contract, a fund may either deliver (if a contract to sell) or take delivery of (if a contract to buy) the foreign currency or terminate its contractual obligation by entering into an offsetting contract with the same currency trader, the same maturity date, and covering the same amount of foreign currency.

If a fund engages in an offsetting transaction, it would incur a gain or loss to the extent there has been movement in forward contract prices. If a fund engages in an offsetting transaction, it may subsequently enter into a new forward contract to buy or sell the foreign currency.

Although a fund values its assets each business day in terms of U.S. dollars, it may not intend to convert its foreign currencies into U.S. dollars on a daily basis. It would do so from time to time, and shareholders should be aware of currency conversion costs. Although foreign exchange dealers do not charge a fee for conversion, they do realize a profit based on the difference (spread) between the prices at which they are buying and selling various currencies. Thus, a dealer may offer to sell a foreign currency to a fund at one rate, while offering a lesser rate of exchange should a fund desire to resell that currency to the dealer.

Options on Foreign Currencies. A fund may buy put and call options and write covered call and cash-secured put options on foreign currencies for hedging purposes and to gain exposure to foreign currencies. For example, a decline in the dollar value of a foreign currency in which securities are denominated will reduce the dollar value of such securities, even if their value

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in the foreign currency remains constant. In order to protect against the diminutions in the value of securities, a fund may buy put options on the foreign currency. If the value of the currency does decline, a fund would have the right to sell the currency for a fixed amount in dollars and would offset, in whole or in part, the adverse effect on its portfolio that otherwise would have resulted.

Conversely, where a change in the dollar value of a currency would increase the cost of securities a fund plans to buy, or where a fund would benefit from increased exposure to the currency, a fund may buy call options on the foreign currency. The purchase of the options could offset, at least partially, the changes in exchange rates.

As in the case of other types of options, however, the benefit to a fund derived from purchases of foreign currency options would be reduced by the amount of the premium and related transaction costs. In addition, where currency exchange rates do not move in the direction or to the extent anticipated, a fund could sustain losses on transactions in foreign currency options that would require it to forego a portion or all of the benefits of advantageous changes in rates.

A fund may write options on foreign currencies for the same types of purposes. For example, when a fund anticipates a decline in the dollar value of foreign- denominated securities due to adverse fluctuations in exchange rates it could, instead of purchasing a put option, write a call option on the relevant currency. If the expected decline occurs, the option would most likely not be exercised and the diminution in value of securities would be fully or partially offset by the amount of the premium received.

Similarly, instead of purchasing a call option when a foreign currency is expected to appreciate, a fund could write a put option on the relevant currency. If rates move in the manner projected, the put option would expire unexercised and allow the fund to hedge increased cost up to the amount of the premium.

As in the case of other types of options, however, the writing of a foreign currency option will constitute only a partial hedge up to the amount of the premium, and only if rates move in the expected direction. If this does not occur, the option may be exercised and the fund would be required to buy or sell the underlying currency at a loss that may not be offset by the amount of the premium. Through the writing of options on foreign currencies, the fund also may be required to forego all or a portion of the benefits that might otherwise have been obtained from favorable movements on exchange rates.

All options written on foreign currencies will be covered. An option written on foreign currencies is covered if a fund holds currency sufficient to cover the option or has an absolute and immediate right to acquire that currency without additional cash consideration upon conversion of assets denominated in that currency or exchange of other currency held in its portfolio. An option writer could lose amounts substantially in excess of its initial investments, due to the margin and collateral requirements associated with such positions.

Options on foreign currencies are traded through financial institutions acting as market-makers, although foreign currency options also are traded on certain national securities exchanges, such as the Philadelphia Stock Exchange and the Chicago Board Options Exchange, subject to SEC regulation. In an over-the- counter trading environment, many of the protections afforded to exchange participants will not be available. For example, there are no daily price fluctuation limits, and adverse market movements could therefore continue to an unlimited extent over a period of time. Although the purchaser of an option cannot lose more than the amount of the premium plus related transaction costs, this entire amount could be lost.

Foreign currency option positions entered into on a national securities exchange are cleared and guaranteed by the Options Clearing Corporation (OCC), thereby reducing the risk of counterparty default. Further, a liquid secondary market in options traded on a national securities exchange may be more readily available than in the over-the-counter market, potentially permitting a fund to liquidate open positions at a profit prior to exercise or expiration, or to limit losses in the event of adverse market movements.

The purchase and sale of exchange-traded foreign currency options, however, is subject to the risks of availability of a liquid secondary market described above, as well as the risks regarding adverse market movements, margining of options written, the nature of the foreign currency market, possible intervention by governmental authorities and the effects of other political and economic events. In addition, exchange-traded options on foreign currencies involve certain risks not presented by the over-the-counter market. For example, exercise and settlement of such options must be made exclusively through the OCC, which has established banking relationships in certain foreign countries for that purpose. As a result, the OCC may, if it determines that foreign governmental restrictions or taxes would prevent the orderly settlement of foreign currency option exercises, or would result in undue burdens on OCC or its clearing member, impose special procedures on exercise and settlement, such as technical changes in the mechanics of delivery of currency, the fixing of dollar settlement prices or prohibitions on exercise.

Foreign Currency Futures and Related Options. A fund may enter into currency futures contracts to buy or sell currencies. It also may buy put and call options and write covered call and cash-secured put options on currency futures. Currency futures contracts are similar to currency forward contracts, except that they are traded on exchanges (and have margin requirements)

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and are standardized as to contract size and delivery date. Most currency futures call for payment of delivery in U.S. dollars. A fund may use currency futures for the same purposes as currency forward contracts, subject to CFTC limitations.

Currency futures and options on futures values can be expected to correlate with exchange rates, but will not reflect other factors that may affect the value of the fund's investments. A currency hedge, for example, should protect a Yen- denominated bond against a decline in the Yen, but will not protect a fund against price decline if the issuer's creditworthiness deteriorates. Because the value of a fund's investments denominated in foreign currency will change in response to many factors other than exchange rates, it may not be possible to match the amount of a forward contract to the value of a fund's investments denominated in that currency over time.

A fund will hold securities or other options or futures positions whose values are expected to offset its obligations. The fund would not enter into an option or futures position that exposes the fund to an obligation to another party unless it owns either (i) an offsetting position in securities or (ii) cash, receivables and short-term debt securities with a value sufficient to cover its potential obligations. (See also Derivative Instruments and Foreign Securities.)

Although one or more of the other risks described in this SAI may apply, the largest risks associated with foreign currency transactions include: Derivatives Risk, Interest Rate Risk, and Liquidity Risk.

FOREIGN SECURITIES
Foreign securities, foreign currencies, and securities issued by U.S. entities with substantial foreign operations involve special risks, including those set forth below, which are not typically associated with investing in U.S. securities. Foreign companies are not generally subject to uniform accounting, auditing, and financial reporting standards comparable to those applicable to domestic companies. Additionally, many foreign stock markets, while growing in volume of trading activity, have substantially less volume than the New York Stock Exchange, and securities of some foreign companies are less liquid and more volatile than securities of domestic companies. Similarly, volume and liquidity in most foreign bond markets are less than the volume and liquidity in the U.S. and, at times, volatility of price can be greater than in the U.S. Further, foreign markets have different clearance, settlement, registration, and communication procedures and in certain markets there have been times when settlements have been unable to keep pace with the volume of securities transactions making it difficult to conduct such transactions. Delays in such procedures could result in temporary periods when assets are uninvested and no return is earned on them. The inability of an investor to make intended security purchases due to such problems could cause the investor to miss attractive investment opportunities.

Payment for securities without delivery may be required in certain foreign markets and, when participating in new issues, some foreign countries require payment to be made in advance of issuance (at the time of issuance, the market value of the security may be more or less than the purchase price). Some foreign markets also have compulsory depositories (i.e., an investor does not have a choice as to where the securities are held). Fixed commissions on some foreign stock exchanges are generally higher than negotiated commissions on U.S. exchanges. Further, an investor may encounter difficulties or be unable to pursue legal remedies and obtain judgments in foreign courts. There is generally less government supervision and regulation of business and industry practices, stock exchanges, brokers, and listed companies than in the U.S. It may be more difficult for an investor's agents to keep currently informed about corporate actions such as stock dividends or other matters that may affect the prices of portfolio securities. Communications between the U.S. and foreign countries may be less reliable than within the U.S., thus increasing the risk of delays or loss of certificates for portfolio securities. In addition, with respect to certain foreign countries, there is the possibility of nationalization, expropriation, the imposition of additional withholding or confiscatory taxes, political, social, or economic instability, diplomatic developments that could affect investments in those countries, or other unforeseen actions by regulatory bodies (such as changes to settlement or custody procedures).

The risks of foreign investing may be magnified for investments in emerging markets, which may have relatively unstable governments, economies based on only a few industries, and securities markets that trade a small number of securities.

The introduction of a single currency, the euro, on Jan. 1, 1999 for participating European nations in the Economic and Monetary Union (EU) presents unique uncertainties, including the legal treatment of certain outstanding financial contracts after Jan. 1, 1999 that refer to existing currencies rather than the euro; the establishment and maintenance of exchange rates; the fluctuation of the euro relative to non-euro currencies; whether the interest rate, tax or labor regimes of European countries participating in the euro will converge over time; and whether the admission of other countries such as Poland, Latvia, and Lithuania as members of the EU may have an impact on the euro.

Although one or more of the other risks described in this SAI may apply, the largest risks associated with foreign securities include: Foreign/Emerging Markets Risk and Issuer Risk.

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FUNDING AGREEMENTS
A fund may invest in funding agreements issued by domestic insurance companies. Funding agreements are short-term, privately placed, debt obligations of insurance companies that offer a fixed- or floating-rate of interest. These investments are not readily marketable and therefore are considered to be illiquid securities. (See also Illiquid and Restricted Securities.)

Although one or more of the other risks described in this SAI may apply, the largest risks associated with funding agreements include: Credit Risk and Liquidity Risk.

HIGH-YIELD DEBT SECURITIES (JUNK BONDS)
High yield (high-risk) debt securities are sometimes referred to as junk bonds. They are non-investment grade (lower quality) securities that have speculative characteristics. Lower quality securities, while generally offering higher yields than investment grade securities with similar maturities, involve greater risks, including the possibility of default or bankruptcy. They are regarded as predominantly speculative with respect to the issuer's capacity to pay interest and repay principal. The special risk considerations in connection with investments in these securities are discussed below.

See Appendix A for a discussion of securities ratings. (See also Debt Obligations.)

All fixed rate interest-bearing securities typically experience appreciation when interest rates decline and depreciation when interest rates rise. The market values of lower-quality and comparable unrated securities tend to reflect individual corporate developments to a greater extent than do higher rated securities, which react primarily to fluctuations in the general level of interest rates. Lower-quality and comparable unrated securities also tend to be more sensitive to economic conditions than are higher-rated securities. As a result, they generally involve more credit risks than securities in the higher- rated categories. During an economic downturn or a sustained period of rising interest rates, highly leveraged issuers of lower-quality securities may experience financial stress and may not have sufficient revenues to meet their payment obligations. The issuer's ability to service its debt obligations also may be adversely affected by specific corporate developments, the issuer's inability to meet specific projected business forecasts, or the unavailability of additional financing. The risk of loss due to default by an issuer of these securities is significantly greater than a default by issuers of higher-rated securities because such securities are generally unsecured and are often subordinated to other creditors. Further, if the issuer of a lower quality security defaulted, an investor might incur additional expenses to seek recovery.

Credit ratings issued by credit rating agencies are designed to evaluate the safety of principal and interest payments of rated securities. They do not, however, evaluate the market value risk of lower-quality securities and, therefore, may not fully reflect the true risks of an investment. In addition, credit rating agencies may or may not make timely changes in a rating to reflect changes in the economy or in the condition of the issuer that affect the market value of the securities. Consequently, credit ratings are used only as a preliminary indicator of investment quality.

An investor may have difficulty disposing of certain lower-quality and comparable unrated securities because there may be a thin trading market for such securities. Because not all dealers maintain markets in all lower quality and comparable unrated securities, there is no established retail secondary market for many of these securities. To the extent a secondary trading market does exist, it is generally not as liquid as the secondary market for higher- rated securities. The lack of a liquid secondary market may have an adverse impact on the market price of the security. The lack of a liquid secondary market for certain securities also may make it more difficult for an investor to obtain accurate market quotations. Market quotations are generally available on many lower-quality and comparable unrated issues only from a limited number of dealers and may not necessarily represent firm bids of such dealers or prices for actual sales.

Legislation may be adopted from time to time designed to limit the use of certain lower quality and comparable unrated securities by certain issuers.

Although one or more of the other risks described in this SAI may apply, the largest risks associated with high-yield debt securities include: Credit Risk, Interest Rate Risk, and Prepayment and Extension Risk.

ILLIQUID AND RESTRICTED SECURITIES
Illiquid securities are securities that are not readily marketable. These securities may include, but are not limited to, certain securities that are subject to legal or contractual restrictions on resale, certain repurchase agreements, and derivative instruments. To the extent a fund invests in illiquid or restricted securities, it may encounter difficulty in determining a market value for the securities. Disposing of illiquid or restricted securities may involve time-consuming negotiations and legal expense, and it may be difficult or impossible for a fund to sell the investment promptly and at an acceptable price.

In determining the liquidity of all securities and derivatives, such as Rule 144A securities, which are unregistered securities offered to qualified institutional buyers, and interest-only and principal-only fixed mortgage-backed securities (IOs and POs) issued by the U.S. government or its agencies and instrumentalities the investment manager, under guidelines established by

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the Board, will consider any relevant factors including the frequency of trades, the number of dealers willing to purchase or sell the security and the nature of marketplace trades.

Although one or more of the other risks described in this SAI may apply, the largest risks associated with illiquid and restricted securities include:
Liquidity Risk.

INDEXED SECURITIES
The value of indexed securities is linked to currencies, interest rates, commodities, indexes, or other financial indicators. Most indexed securities are short- to intermediate-term fixed income securities whose values at maturity or interest rates rise or fall according to the change in one or more specified underlying instruments. Indexed securities may be more volatile than the underlying instrument itself and they may be less liquid than the securities represented by the index. (See also Derivative Instruments.)

Although one or more of the other risks described in this SAI may apply, the largest risks associated with indexed securities include: Liquidity Risk and Market Risk.

INFLATION PROTECTED SECURITIES
Inflation is a general rise in prices of goods and services. Inflation erodes the purchasing power of an investor's assets. For example, if an investment provides a total return of 7% in a given year and inflation is 3% during that period, the inflation-adjusted, or real, return is 4%. Inflation-protected securities are debt securities whose principal and/or interest payments are adjusted for inflation, unlike debt securities that make fixed principal and interest payments. One type of inflation-protected debt security is issued by the U.S. Treasury. The principal of these securities is adjusted for inflation as indicated by the Consumer Price Index for Urban Consumers (CPI) and interest is paid on the adjusted amount. The CPI is a measurement of changes in the cost of living, made up of components such as housing, food, transportation and energy.

If the CPI falls, the principal value of inflation-protected securities will be adjusted downward, and consequently the interest payable on these securities (calculated with respect to a smaller principal amount) will be reduced. Conversely, if the CPI rises, the principal value of inflation-protected securities will be adjusted upward, and consequently the interest payable on these securities will be increased. Repayment of the original bond principal upon maturity is guaranteed in the case of U.S. Treasury inflation-protected securities, even during a period of deflation. However, the current market value of the inflation-protected securities is not guaranteed and will fluctuate. Other inflation-indexed securities include inflation-related bonds, which may or may not provide a similar guarantee. If a guarantee of principal is not provided, the adjusted principal value of the bond repaid at maturity may be less than the original principal.

Other issuers of inflation-protected debt securities include other U.S. government agencies or instrumentalities, corporations and foreign governments. There can be no assurance that the CPI or any foreign inflation index will accurately measure the real rate of inflation in the prices of goods and services. Moreover, there can be no assurance that the rate of inflation in a foreign country will be correlated to the rate of inflation in the United States.

If interest rates rise due to reasons other than inflation (for example, due to changes in currency exchange rates), investors in these securities may not be protected to the extent that the increase is not reflected in the bond's inflation measure.

Any increase in principal for an inflation-protected security resulting from inflation adjustments is considered by IRS regulations to be taxable income in the year it occurs. For direct holders of an inflation-protected security, this means that taxes must be paid on principal adjustments even though these amounts are not received until the bond matures. By contrast, a fund holding these securities distributes both interest income and the income attributable to principal adjustments in the form of cash or reinvested shares, which are taxable to shareholders.

Although one or more of the other risks described in this SAI may apply, the largest risks associated with inflation-protected securities include: Interest Rate Risk and Market Risk.

INITIAL PUBLIC OFFERINGS (IPOS)

Companies issuing IPOs generally have limited operating histories, and their prospects for future profitability are uncertain. These companies often are engaged in new and evolving businesses and are particularly vulnerable to competition and to changes in technology, markets and economic conditions. They may be dependent on certain key managers and third parties, need more personnel and other resources to manage growth and require significant additional capital. They may also be dependent on limited product lines and uncertain property rights and need regulatory approvals. Funds that invest in IPOs can be affected by sales of additional shares and by concentration of control in existing management and principal shareholders. Stock prices of IPOs can also be highly unstable, due to the absence of a prior public market, the small number of shares available for trading and limited investor information. Most IPOs involve a high degree of risk not normally associated with offerings of more seasoned companies.

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Although one or more risks described in this SAI may apply, the largest risks associated with IPOs include: Small and Mid-Sized Company Risk and Initial Public Offering (IPO) Risk.

INVESTMENT COMPANIES
Investing in securities issued by registered and unregistered investment companies may involve the duplication of advisory fees and certain other expenses.

Although one or more of the other risks described in this SAI may apply, the largest risks associated with the securities of other investment companies include: Market Risk.

LENDING OF PORTFOLIO SECURITIES
A fund may lend certain of its portfolio securities. The current policy of the Board is to make these loans, either long- or short-term, to broker-dealers. Loans will be structured in a manner that will enable a fund to call the loan in order to vote in a proxy solicitation if the fund has knowledge of a material event to be voted on that would affect the fund's investment in the loaned security. In making loans, the lender receives the market price in cash, U.S. government securities, letters of credit, or such other collateral as may be permitted by regulatory agencies and approved by the Board. If the market price of the loaned securities goes up, the lender will get additional collateral on a daily basis. If the market price of the loaned securities goes down, the borrower may request that some collateral be returned. The risks are that the borrower may not provide additional collateral when required or return the securities when due. During the existence of the loan, the lender receives cash payments equivalent to all interest or other distributions paid on the loaned securities. The lender may pay reasonable administrative and custodial fees in connection with a loan and may pay a negotiated portion of the interest earned on the cash or money market instruments held as collateral to the borrower or placing broker. The lender will receive reasonable interest on the loan or a flat fee from the borrower and amounts equivalent to any dividends, interest, or other distributions on the securities loaned.

Although one or more of the other risks described in this SAI may apply, the largest risks associated with the lending of portfolio securities include:
Credit Risk.

MORTGAGE- AND ASSET-BACKED SECURITIES
Mortgage-backed securities represent direct or indirect participations in, or are secured by and payable from, mortgage loans secured by real property, and include single- and multi-class pass-through securities and Collateralized Mortgage Obligations (CMOs). These securities may be issued or guaranteed by U.S. government agencies or instrumentalities (see also Agency and Government Securities), or by private issuers, generally originators and investors in mortgage loans, including savings associations, mortgage bankers, commercial banks, investment bankers, and special purpose entities. Mortgage-backed securities issued by private lenders may be supported by pools of mortgage loans or other mortgage-backed securities that are guaranteed, directly or indirectly, by the U.S. government or one of its agencies or instrumentalities, or they may be issued without any governmental guarantee of the underlying mortgage assets but with some form of non-governmental credit enhancement. Commercial mortgage- backed securities (CMBS) are a specific type of mortgage-backed security collateralized by a pool of mortgages on commercial real estate.

Stripped mortgage-backed securities are a type of mortgage-backed security that receive differing proportions of the interest and principal payments from the underlying assets. Generally, there are two classes of stripped mortgage-backed securities: Interest Only (IO) and Principal Only (PO). IOs entitle the holder to receive distributions consisting of all or a portion of the interest on the underlying pool of mortgage loans or mortgage-backed securities. POs entitle the holder to receive distributions consisting of all or a portion of the principal of the underlying pool of mortgage loans or mortgage-backed securities. The cash flows and yields on IOs and POs are extremely sensitive to the rate of principal payments (including prepayments) on the underlying mortgage loans or mortgage- backed securities. A rapid rate of principal payments may adversely affect the yield to maturity of IOs. A slow rate of principal payments may adversely affect the yield to maturity of POs. If prepayments of principal are greater than anticipated, an investor in IOs may incur substantial losses. If prepayments of principal are slower than anticipated, the yield on a PO will be affected more severely than would be the case with a traditional mortgage-backed security.

CMOs are hybrid mortgage-related instruments secured by pools of mortgage loans or other mortgage-related securities, such as mortgage pass through securities or stripped mortgage-backed securities. CMOs may be structured into multiple classes, often referred to as "tranches," with each class bearing a different stated maturity and entitled to a different schedule for payments of principal and interest, including prepayments. Principal prepayments on collateral underlying a CMO may cause it to be retired substantially earlier than its stated maturity. The yield characteristics of mortgage-backed securities differ from those of other debt securities. Among the differences are that interest and principal payments are made more frequently on mortgage-backed securities, usually monthly, and principal may be repaid at any time. These factors may reduce the expected yield.

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Asset-backed securities have structural characteristics similar to mortgage- backed securities. Asset-backed debt obligations represent direct or indirect participation in, or secured by and payable from, assets such as motor vehicle installment sales contracts, other installment loan contracts, home equity loans, leases of various types of property, and receivables from credit card or other revolving credit arrangements. The credit quality of most asset-backed securities depends primarily on the credit quality of the assets underlying such securities, how well the entity issuing the security is insulated from the credit risk of the originator or any other affiliated entities, and the amount and quality of any credit enhancement of the securities. Payments or distributions of principal and interest on asset-backed debt obligations may be supported by non-governmental credit enhancements including letters of credit, reserve funds, overcollateralization, and guarantees by third parties. The market for privately issued asset-backed debt obligations is smaller and less liquid than the market for government sponsored mortgage-backed securities. (See also Derivative Instruments.)

Although one or more of the other risks described in this SAI may apply, the largest risks associated with mortgage and asset-backed securities include:
Credit Risk, Interest Rate Risk, Liquidity Risk, and Prepayment and Extension Risk.

MUNICIPAL OBLIGATIONS
Municipal obligations include debt obligations issued by or on behalf of states, territories, possessions, or sovereign nations within the territorial boundaries of the United States (including the District of Columbia and Puerto Rico). The interest on these obligations is generally exempt from federal income tax. Municipal obligations are generally classified as either "general obligations" or "revenue obligations."

General obligation bonds are secured by the issuer's pledge of its full faith, credit, and taxing power for the payment of interest and principal. Revenue bonds are payable only from the revenues derived from a project or facility or from the proceeds of a specified revenue source. Industrial development bonds are generally revenue bonds secured by payments from and the credit of private users. Municipal notes are issued to meet the short-term funding requirements of state, regional, and local governments. Municipal notes include tax anticipation notes, bond anticipation notes, revenue anticipation notes, tax and revenue anticipation notes, construction loan notes, short-term discount notes, tax- exempt commercial paper, demand notes, and similar instruments.

Municipal lease obligations may take the form of a lease, an installment purchase, or a conditional sales contract. They are issued by state and local governments and authorities to acquire land, equipment, and facilities. An investor may purchase these obligations directly, or it may purchase participation interests in such obligations. Municipal leases may be subject to greater risks than general obligation or revenue bonds. State constitutions and statutes set forth requirements that states or municipalities must meet in order to issue municipal obligations. Municipal leases may contain a covenant by the state or municipality to budget for and make payments due under the obligation. Certain municipal leases may, however, provide that the issuer is not obligated to make payments on the obligation in future years unless funds have been appropriated for this purpose each year.

Yields on municipal bonds and notes depend on a variety of factors, including money market conditions, municipal bond market conditions, the size of a particular offering, the maturity of the obligation, and the rating of the issue. The municipal bond market has a large number of different issuers, many having smaller sized bond issues, and a wide choice of different maturities within each issue. For these reasons, most municipal bonds do not trade on a daily basis and many trade only rarely. Because many of these bonds trade infrequently, the spread between the bid and offer may be wider and the time needed to develop a bid or an offer may be longer than other security markets. See Appendix A for a discussion of securities ratings. (See also Debt Obligations.)

Taxable Municipal Obligations. There is another type of municipal obligation that is subject to federal income tax for a variety of reasons. These municipal obligations do not qualify for the federal income exemption because (a) they did not receive necessary authorization for tax-exempt treatment from state or local government authorities, (b) they exceed certain regulatory limitations on the cost of issuance for tax-exempt financing or (c) they finance public or private activities that do not qualify for the federal income tax exemption. These non- qualifying activities might include, for example, certain types of multi-family housing, certain professional and local sports facilities, refinancing of certain municipal debt, and borrowing to replenish a municipality's underfunded pension plan.

Although one or more of the other risks described in this SAI may apply, the largest risks associated with municipal obligations include: Credit Risk, Inflation Risk, Interest Rate Risk, and Market Risk.

PREFERRED STOCK
Preferred stock is a type of stock that pays dividends at a specified rate and that has preference over common stock in the payment of dividends and the liquidation of assets. Preferred stock does not ordinarily carry voting rights.

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The price of a preferred stock is generally determined by earnings, type of products or services, projected growth rates, experience of management, liquidity, and general market conditions of the markets on which the stock trades.

Although one or more of the other risks described in this SAI may apply, the largest risks associated with preferred stock include: Issuer Risk and Market Risk.

REAL ESTATE INVESTMENT TRUSTS
Real estate investment trusts (REITs) are pooled investment vehicles that manage a portfolio of real estate or real estate related loans to earn profits for their shareholders. REITs are generally classified as equity REITs, mortgage REITs or a combination of equity and mortgage REITs. Equity REITs invest the majority of their assets directly in real property, such as shopping centers, nursing homes, office buildings, apartment complexes, and hotels, and derive income primarily from the collection of rents. Equity REITs can also realize capital gains by selling properties that have appreciated in value. Mortgage REITs invest the majority of their assets in real estate mortgages and derive income from the collection of interest payments. REITs can be subject to extreme volatility due to fluctuations in the demand for real estate, changes in interest rates, and adverse economic conditions. Similar to investment companies, REITs are not taxed on income distributed to shareholders provided they comply with certain requirements under the tax law. The failure of a REIT to continue to qualify as a REIT for tax purposes can materially affect its value. A fund will indirectly bear its proportionate share of any expenses paid by a REIT in which it invests.

REITs often do not provide complete tax information until after the calendar year-end. Consequently, because of the delay, it may be necessary for a fund investing in REITs to request permission to extend the deadline for issuance of Forms 1099-DIV beyond January 31. In the alternative, amended Forms 1099-DIV may be sent.

Although one or more of the other risks described in this SAI may apply, the largest risks associated with REITs include: Interest Rate Risk, Issuer Risk and Market Risk.

REPURCHASE AGREEMENTS
Repurchase agreements may be entered into with certain banks or non-bank dealers. In a repurchase agreement, the purchaser buys a security at one price, and at the time of sale, the seller agrees to repurchase the obligation at a mutually agreed upon time and price (usually within seven days). The repurchase agreement determines the yield during the purchaser's holding period, while the seller's obligation to repurchase is secured by the value of the underlying security. Repurchase agreements could involve certain risks in the event of a default or insolvency of the other party to the agreement, including possible delays or restrictions upon the purchaser's ability to dispose of the underlying securities.

Although one or more of the other risks described in this SAI may apply, the largest risks associated with repurchase agreements include: Credit Risk.

REVERSE REPURCHASE AGREEMENTS
In a reverse repurchase agreement, an investor sells a security and enters into an agreement to repurchase the security at a specified future date and price. The investor generally retains the right to interest and principal payments on the security. Since the investor receives cash upon entering into a reverse repurchase agreement, it may be considered a borrowing. (See also Derivative Instruments.)

Although one or more of the other risks described in this SAI may apply, the largest risks associated with reverse repurchase agreements include: Credit Risk and Interest Rate Risk.

SHORT SALES
In short selling transactions, a fund sells a security it does not own in anticipation of a decline in the market value of the security. To complete the transaction, a fund must borrow the security to make delivery to the buyer. A fund is obligated to replace the security borrowed by purchasing it at the market price at the time of replacement. The price at such time may be more or less than the price at which the security was sold by a fund, which may result in a loss or gain, respectively. Unlike taking a long position in a security by purchasing the security, where potential losses are limited to the purchase price, short sales have no cap on maximum losses, and gains are limited to the price of the security at the time of the short sale.

Short sales of forward commitments and derivatives do not involve borrowing a security. These types of short sales may include futures, options, contracts for differences, forward contracts on financial instruments and options such as contracts, credit linked instruments, and swap contracts.

A fund may not always be able to borrow a security it wants to sell short. A fund also may be unable to close out an established short position at an acceptable price and may have to sell long positions at disadvantageous times to cover its short positions. The value of your investment in a fund will fluctuate in response to the movements in the market. Fund

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performance also will depend on the effectiveness of the investment manager's research and the management team's investment decisions.

Short sales also involve other costs. A fund must repay to the lender an amount equal to any dividends or interest that accrues while the loan is outstanding. To borrow the security, a fund may be required to pay a premium. A fund also will incur truncation costs in effecting short sales. The amount of any ultimate gain for a fund resulting from a short sale will be decreased and the amount of any ultimate loss will be increased, by the amount of premiums, interest or expenses a fund may be required to pay in connection with the short sale. Until a fund closes the short position, it will earmark and reserve fund assets, in cash or liquid securities to offset a portion of the leverage risk. Realized gains from short sales are typically treated as short-term gains/losses.

Although one or more of the other risks described in this SAI may apply, the largest risks associated with short sales include: Market Risk.

SOVEREIGN DEBT
A sovereign debtor's willingness or ability to repay principal and pay interest in a timely manner may be affected by a variety of factors, including its cash flow situation, the extent of its reserves, the availability of sufficient foreign exchange on the date a payment is due, the relative size of the debt service burden to the economy as a whole, the sovereign debtor's policy toward international lenders, and the political constraints to which a sovereign debtor may be subject. (See also Foreign Securities.)

With respect to sovereign debt of emerging market issuers, investors should be aware that certain emerging market countries are among the largest debtors to commercial banks and foreign governments. At times, certain emerging market countries have declared moratoria on the payment of principal and interest on external debt.

Certain emerging market countries have experienced difficulty in servicing their sovereign debt on a timely basis that led to defaults and the restructuring of certain indebtedness.

Sovereign debt includes Brady Bonds, which are securities issued under the framework of the Brady Plan, an initiative announced by former U.S. Treasury Secretary Nicholas F. Brady in 1989 as a mechanism for debtor nations to restructure their outstanding external commercial bank indebtedness.

Although one or more of the other risks described in this SAI may apply, the largest risks associated with sovereign debt include: Credit Risk and Foreign/Emerging Markets Risk.

STRUCTURED INVESTMENTS
A structured investment is a security whose return is tied to an underlying index or to some other security or pool of assets. Structured investments generally are individually negotiated agreements and may be traded over-the- counter. Structured investments are created and operated to restructure the investment characteristics of the underlying security. This restructuring involves the deposit with or purchase by an entity, such as a corporation or trust, of specified instruments, such as commercial bank loans, and the issuance by that entity of one or more classes of debt obligations ("structured securities") backed by, or representing interests in, the underlying instruments. The cash flow on the underlying instruments may be apportioned among the newly issued structured securities to create securities with different investment characteristics, such as varying maturities, payment priorities, and interest rate provisions. The extent of the payments made with respect to structured securities is dependent on the extent of the cash flow on the underlying instruments. Because structured securities typically involve no credit enhancement, their credit risk generally will be equivalent to that of the underlying instruments. Structured securities are often offered in different classes. As a result a given class of a structured security may be either subordinated or unsubordinated to the right of payment of another class. Subordinated structured securities typically have higher yields and present greater risks than unsubordinated structured securities. Structured securities are typically sold in private placement transactions, and at any given time there may be no active trading market for a particular structured security.

Although one or more of the other risks described in this SAI may apply, the largest risks associated with structured investments include: Credit Risk and Liquidity Risk.

SWAP AGREEMENTS
Swap agreements are typically individually negotiated agreements that obligate two parties to exchange payments based on a reference to a specified asset, reference rate or index. Swap agreements will tend to shift a party's investment exposure from one type of investment to another. A swap agreement can increase or decrease the volatility of a fund's investments and its net asset value.

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Swap agreements are traded in the over-the-counter market and may be considered to be illiquid. Swap agreements entail the risk that a party will default on its payment obligations. A fund will enter into a swap agreement only if the claims- paying ability of the other party or its guarantor is considered to be investment grade by the investment manager. Generally, the unsecured senior debt or the claims-paying ability of the other party or its guarantor must be rated in one of the three highest rating categories of at least one Nationally Recognized Statistical Rating Organization (NRSRO) at the time of entering into the transaction. If there is a default by the other party to such a transaction, a fund will have to rely on its contractual remedies (which may be limited by bankruptcy, insolvency or similar laws) pursuant to the agreements related to the transaction. In certain circumstances, a fund may seek to minimize counterparty risk by requiring the counterparty to post collateral.

Swap agreements are usually entered into without an upfront payment because the value of each party's position is the same. The market values of the underlying commitments will change over time resulting in one of the commitments being worth more than the other and the net market value creating a risk exposure for one counterparty or the other.

Interest Rate Swaps. Interest rate swap agreements are often used to obtain or preserve a desired return or spread at a lower cost than through a direct investment in an instrument that yields the desired return or spread. They are financial instruments that involve the exchange of one type of interest rate for another type of interest rate cash flow on specified dates in the future. In a standard interest rate swap transaction, two parties agree to exchange their respective commitments to pay fixed or floating rates on a predetermined specified (notional) amount. The swap agreement notional amount is the predetermined basis for calculating the obligations that the swap counterparties have agreed to exchange. Under most swap agreements, the obligations of the parties are exchanged on a net basis. The two payment streams are netted out, with each party receiving or paying, as the case may be, only the net amount of the two payments. Interest rate swaps can be based on various measures of interest rates, including LIBOR, swap rates, treasury rates and other foreign interest rates.

Cross Currency Swaps. Cross currency swaps are similar to interest rate swaps, except that they involve multiple currencies. A fund may enter into a currency swap when it has exposure to one currency and desires exposure to a different currency. Typically the interest rates that determine the currency swap payments are fixed, although occasionally one or both parties may pay a floating rate of interest. Unlike an interest rate swap, however, the principal amounts are exchanged at the beginning of the contract and returned at the end of the contract. In addition to paying and receiving amounts at the beginning and termination of the agreements, both sides will also have to pay in full periodically based upon the currency they have borrowed. Change in foreign exchange rates and changes in interest rates, as described above, may negatively affect currency swaps.

Total Return Swaps. Total return swaps are contracts in which one party agrees to make periodic payments based on the change in market value of the underlying assets, which may include a specified security, basket of securities or security indexes during the specified period, in return for periodic payments based on a fixed or variable interest rate of the total return from other underlying assets. Total return swap agreements may be used to obtain exposure to a security or market without owning or taking physical custody of such security or market. For example, CMBS total return swaps are bilateral financial contracts designed to replicate synthetically the total returns of collateralized mortgage-backed securities. In a typical total return equity swap, payments made by the fund or the counterparty are based on the total return of a particular reference asset or assets (such as an equity security, a combination of such securities, or an index). That is, one party agrees to pay another party the return on a stock, basket of stocks, or stock index in return for a specified interest rate. By entering into an equity index swap, for example, the index receiver can gain exposure to stocks making up the index of securities without actually purchasing those stocks. Total return swaps involve not only the risk associated with the investment in the underlying securities, but also the risk of the counterparty not fulfilling its obligations under the agreement.

Swaption Transactions. A swaption is an option on a swap agreement and a contract that gives a counterparty the right (but not the obligation) to enter into a new swap agreement or to shorten, extend, cancel or otherwise modify an existing swap agreement, at some designated future time on specified terms, in return for payment of the purchase price (the "premium") of the option. The fund may write (sell) and purchase put and call swaptions to the same extent it may make use of standard options on securities or other instruments. The writer of the contract receives the premium and bears the risk of unfavorable changes in the market value on the underlying swap agreement.

Swaptions can be bundled and sold as a package. These are commonly called interest rate caps, floors and collars. In interest rate cap transactions, in return for a premium, one party agrees to make payments to the other to the extent that interest rates exceed a specified rate, or cap. Interest rate floor transactions require one party, in exchange for a premium to agree to make payments to the other to the extent that interest rates fall below a specified level, or floor. In interest rate collar transactions, one party sells a cap and purchases a floor, or vice versa, in an attempt to protect itself against interest rate movements exceeding given minimum or maximum levels or collar amounts.

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Credit Default Swaps. Credit default swaps are contracts in which third party credit risk is transferred from one party to another party by one party, the protection buyer, making payments to the other party, the protection seller, in return for the ability of the protection buyer to deliver a reference obligation, or portfolio of reference obligations, to the protection seller upon the occurrence of certain credit events relating to the issuer of the reference obligation and receive the notional amount of the reference obligation from the protection seller. A fund may use credit default swaps for various purposes including to increase or decrease its credit exposure to various issuers. For example, as a seller in a transaction, a fund could use credit default swaps as a way of increasing investment exposure to a particular issuer's bonds in lieu of purchasing such bonds directly. Similarly, as a buyer in a transaction, a fund may use credit default swaps to hedge its exposure on bonds that it owns or in lieu of selling such bonds. A credit default swap agreement may have as reference obligations one or more securities that are not currently held by the fund. The fund may be either the buyer or seller in the transaction. Credit default swaps may also be structured based on the debt of a basket of issuers, rather than a single issuer, and may be customized with respect to the default event that triggers purchase or other factors. As a seller, the fund generally receives an up front payment or a fixed rate of income throughout the term of the swap, which typically is between six months and three years, provided that there is no credit event. If a credit event occurs, generally the seller must pay the buyer the full face amount of deliverable obligations of the reference obligations that may have little or no value. If the fund is a buyer and no credit event occurs, the fund recovers nothing if the swap is held through its termination date. However, if a credit event occurs, the buyer may elect to receive the full notional value of the swap in exchange for an equal face amount of deliverable obligations of the reference obligation that may have little or no value.

Credit default swap agreements can involve greater risks than if a fund had invested in the reference obligation directly since, in addition to general market risks, credit default swaps are subject to counterparty credit risk, leverage risk, hedging risk, correlation risk and liquidity risk. A fund will enter into credit default swap agreements only with counterparties that meet certain standards of creditworthiness. A buyer generally also will lose its investment and recover nothing should no credit event occur and the swap is held to its termination date. If a credit event were to occur, the value of any deliverable obligation received by the seller, coupled with the upfront or periodic payments previously received, may be less than the full notional value it pays to the buyer, resulting in a loss of value to the seller. A fund's obligations under a credit default swap agreement will be accrued daily (offset against any amounts owing to the fund). In connection with credit default swaps in which a fund is the buyer, the fund will segregate or "earmark" cash or other liquid assets, or enter into certain offsetting positions, with a value at least equal to the fund's exposure (any accrued but unpaid net amounts owed by the fund to any counterparty), on a marked-to-market basis. In connection with credit default swaps in which a fund is the seller, the fund will segregate or "earmark" cash or other liquid assets, or enter into offsetting positions, with a value at least equal to the full notional amount of the swap (minus any amounts owed to the fund). Such segregation or "earmarking" will ensure that the fund has assets available to satisfy its obligations with respect to the transaction. Such segregation or "earmarking" will not limit the fund's exposure to loss.

The use of swap agreements by a fund entails certain risks, which may be different from, or possibly greater than, the risks associated with investing directly in the securities and other investments that are the referenced asset for the swap agreement. Swaps are highly specialized instruments that require investment techniques, risk analyses, and tax planning different from those associated with stocks, bonds, and other traditional investments. The use of a swap requires an understanding not only of the referenced asset, reference rate, or index, but also of the swap itself, without the benefit of observing the performance of the swap under all the possible market conditions. Because some swap agreements have a leverage component, adverse changes in the value or level of the underlying asset, reference rate, or index can result in a loss substantially greater than the amount invested in the swap itself. Certain swaps have the potential for unlimited loss, regardless of the size of the initial investment.

Although one or more of the other risks described in this SAI may apply, the largest risks associated with swaps include: Credit Risk, Liquidity Risk and Market Risk.

VARIABLE- OR FLOATING-RATE SECURITIES
Variable-rate securities provide for automatic establishment of a new interest rate at fixed intervals (daily, monthly, semiannually, etc.). Floating-rate securities generally provide for automatic adjustment of the interest rate whenever some specified interest rate index changes. Variable- or floating-rate securities frequently include a demand feature enabling the holder to sell the securities to the issuer at par. In many cases, the demand feature can be exercised at any time. Some securities that do not have variable or floating interest rates may be accompanied by puts producing similar results and price characteristics. Variable-rate demand notes include master demand notes that are obligations that permit the investor to invest fluctuating amounts, which may change daily without penalty, pursuant to direct arrangements between the investor as lender, and the borrower. The interest rates on these notes fluctuate from time to time. The issuer of such obligations normally has a corresponding right, after a given period, to prepay in its discretion the outstanding principal amount of the obligations plus accrued interest upon a specified number of days' notice to the holders of such obligations. Because these

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obligations are direct lending arrangements between the lender and borrower, it is not contemplated that such instruments generally will be traded. There generally is not an established secondary market for these obligations. Accordingly, where these obligations are not secured by letters of credit or other credit support arrangements, the lender's right to redeem is dependent on the ability of the borrower to pay principal and interest on demand. Such obligations frequently are not rated by credit rating agencies and may involve heightened risk of default by the issuer.

Although one or more of the other risks described in this SAI may apply, the largest risks associated with variable-or floating-rate securities include:
Credit Risk.

WARRANTS
Warrants are securities giving the holder the right, but not the obligation, to buy the stock of an issuer at a given price (generally higher than the value of the stock at the time of issuance) during a specified period or perpetually. Warrants may be acquired separately or in connection with the acquisition of securities. Warrants do not carry with them the right to dividends or voting rights and they do not represent any rights in the assets of the issuer. Warrants may be considered to have more speculative characteristics than certain other types of investments. In addition, the value of a warrant does not necessarily change with the value of the underlying securities, and a warrant ceases to have value if it is not exercised prior to its expiration date.

Although one or more of the other risks described in this SAI may apply, the largest risks associated with warrants include: Market Risk.

WHEN-ISSUED SECURITIES AND FORWARD COMMITMENTS
When-issued securities and forward commitments involve a commitment to purchase or sell specific securities at a predetermined price or yield in which payment and delivery take place after the customary settlement period for that type of security. Normally, the settlement date occurs within 45 days of the purchase although in some cases settlement may take longer. The investor does not pay for the securities or receive dividends or interest on them until the contractual settlement date. Such instruments involve the risk of loss if the value of the security to be purchased declines prior to the settlement date and the risk that the security will not be issued as anticipated. If the security is not issued as anticipated, a fund may lose the opportunity to obtain a price and yield considered to be advantageous.

Although one or more of the other risks described in this SAI may apply, the largest risks associated with when-issued securities and forward commitments include: Credit Risk.

ZERO-COUPON, STEP-COUPON, AND PAY-IN-KIND SECURITIES
These securities are debt obligations that do not make regular cash interest payments (see also Debt Obligations). Zero-coupon and step-coupon securities are sold at a deep discount to their face value because they do not pay interest until maturity. Pay-in-kind securities pay interest through the issuance of additional securities. Because these securities do not pay current cash income, the price of these securities can be extremely volatile when interest rates fluctuate. See Appendix A for a discussion of securities ratings.

Although one or more of the other risks described in this SAI may apply, the largest risks associated with zero-coupon, step-coupon, and pay-in-kind securities include: Credit Risk and Interest Rate Risk.

A fund cannot issue senior securities but this does not prohibit certain investment activities for which assets of the fund are set aside, or margin, collateral or escrow arrangements are established, to cover the related obligations. Examples of those activities include borrowing money, delayed- delivery and when-issued securities transactions, and contracts to buy or sell options, derivatives, and hedging instruments.

SECURITIES TRANSACTIONS

Except as otherwise noted, the description of policies and procedures in this section also applies to any fund subadviser. Subject to policies set by the Board, as well as the terms of the investment management agreements, the investment manager or subadviser is authorized to determine, consistent with a fund's investment objective and policies, which securities will be purchased, held, or sold. In determining where the buy and sell orders are to be placed, the investment manager has been directed to use its best efforts to obtain the best available price and the most favorable execution except where otherwise authorized by the Board.

Each fund, the investment manager, any subadviser and Ameriprise Financial Services, Inc. and RiverSource Distributors, Inc. (each a principal underwriter and distributor of the Funds) has a strict Code of Ethics that prohibits affiliated personnel

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from engaging in personal investment activities that compete with or attempt to take advantage of planned portfolio transactions for the fund.

A fund's securities may be traded on an agency basis with brokers or dealers or on a principal basis with dealers. In an agency trade, the broker-dealer generally is paid a commission. In a principal trade, the investment manager will trade directly with the issuer or with a dealer who buys or sells for its own account, rather than acting on behalf of another client. The investment manager generally does not pay the dealer a commission. Instead, the dealer's profit, if any, is the difference, or spread, between the dealer's purchase and sale price for the security.

BROKER-DEALER SELECTION
In selecting broker-dealers to execute transactions, the investment manager and each subadviser will consider from among such factors as the ability to minimize trading costs, trading expertise, infrastructure, ability to provide information or services, financial condition, confidentiality, competitiveness of commission rates, evaluations of execution quality, promptness of execution, past history, ability to prospect for and find liquidity, difficulty of trade, security's trading characteristics, size of order, liquidity of market, block trading capabilities, quality of settlement, specialized expertise, overall responsiveness, willingness to commit capital and research services provided.

The Board has adopted a policy prohibiting the investment manager, or any subadviser, from considering sales of shares of the funds as a factor in the selection of broker-dealers through which to execute securities transactions.

On a periodic basis, the investment manager makes a comprehensive review of the broker-dealers and the overall reasonableness of their commissions, including review by an independent third-party evaluator. The review evaluates execution, operational efficiency, and research services.

COMMISSION DOLLARS
Broker-dealers typically provide a bundle of services including research and execution of transactions. The research provided can be either proprietary (created and provided by the broker-dealer) or third party (created by a third party but provided by the broker-dealer). Consistent with the interests of the fund, the investment manager and each subadviser may use broker-dealers who provide both types of research products and services in exchange for commissions, known as "soft dollars," generated by transactions in fund accounts.

The receipt of research and brokerage products and services is used by the investment manager, and by each subadviser, to the extent it engages in such transactions, to supplement its own research and analysis activities, by receiving the views and information of individuals and research staffs of other securities firms, and by gaining access to specialized expertise on individual companies, industries, areas of the economy and market factors. Research and brokerage products and services may include reports on the economy, industries, sectors and individual companies or issuers; statistical information; accounting and tax law interpretations; political analyses; reports on legal developments affecting portfolio securities; information on technical market actions; credit analyses; on-line quotation systems; risk measurement; analyses of corporate responsibility issues; on-line news services; and financial and market database services. Research services may be used by the investment manager in providing advice to all RiverSource funds (or by any subadviser to any other client of the subadviser) even though it is not possible to relate the benefits to any particular fund.

On occasion, it may be desirable to compensate a broker for research services or for brokerage services by paying a commission that might not otherwise be charged or a commission in excess of the amount another broker might charge. The Board has adopted a policy authorizing the investment manager to do so, to the extent authorized by law, if the investment manager or subadviser determines, in good faith, that such commission is reasonable in relation to the value of the brokerage or research services provided by a broker or dealer, viewed either in the light of that transaction or the investment manager's or subadviser's overall responsibilities with respect to a fund and the other funds or accounts for which it acts as investment manager (or by any subadviser to any other client of that subadviser).

As a result of these arrangements, some portfolio transactions may not be effected at the lowest commission, but overall execution may be better. The investment manager and each subadviser have represented that under its procedures the amount of commission paid will be reasonable and competitive in relation to the value of the brokerage services and research products and services provided.

The investment manager or a subadviser may use step-out transactions. A "step- out" is an arrangement in which the investment manager or subadviser executes a trade through one broker-dealer but instructs that broker-dealer to step-out all or a part of the trade to another broker-dealer. The second broker-dealer will clear and settle, and receive commissions for, the stepped-out portion. The investment manager or subadviser may receive research products and services in connection with step-out transactions.

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Use of fund commissions may create potential conflicts of interest between the investment manager or subadviser and a fund. However, the investment manager and each subadviser has policies and procedures in place intended to mitigate these conflicts and ensure that the use of soft dollars falls within the "safe harbor" of Section 28(e) of the Securities Exchange Act of 1934. Some products and services may be used for both investment decision-making and non-investment decision-making purposes ("mixed use" items). The investment manager and each subadviser, to the extent it has mixed use items, has procedures in place to assure that soft dollars pay only for the investment decision-making portion of a mixed-use item.

TRADE AGGREGATION AND ALLOCATION
Generally, orders are processed and executed in the order received. When a fund buys or sells the same security as another portfolio, fund, or account, the investment manager or subadviser carries out the purchase or sale pursuant to policies and procedures designed in such a way believed to be fair to the fund. Purchase and sale orders may be combined or aggregated for more than one account if it is believed it would be consistent with best execution. Aggregation may reduce commission costs or market impact on a per-share and per-dollar basis, although aggregation may have the opposite effect. There may be times when not enough securities are received to fill an aggregated order, including in an initial public offering, involving multiple accounts. In that event, the investment manager and each subadviser have policies and procedures designed in such a way believed to result in a fair allocation among accounts, including the fund.

From time to time, different portfolio managers with the investment manager may make differing investment decisions related to the same security. However, with certain exceptions for funds managed using strictly quantitative methods, a portfolio manager or portfolio management team may not sell a security short if the security is owned in another portfolio managed by that portfolio manager or portfolio management team. On occasion, a fund may purchase and sell a security simultaneously in order to profit from short-term price disparities.

The investment manager has portfolio management teams in its Minneapolis and Los Angeles offices that may share research information regarding leveraged loans. The investment manager operates separate and independent trading desks in these locations for the purpose of purchasing and selling leveraged loans. As a result, the investment manager does not aggregate orders in leveraged loans across portfolio management teams. For example, funds and other client accounts being managed by these portfolio management teams may purchase and sell the same leveraged loan in the secondary market on the same day at different times and at different prices. There is also the potential for a particular account or group of accounts, including a fund, to forego an opportunity or to receive a different allocation (either larger or smaller) than might otherwise be obtained if the investment manager were to aggregate trades in leveraged loans across the portfolio management teams. Although the investment manager does not aggregate orders in leveraged loans across its portfolio management teams in Minneapolis and Los Angeles, it operates in this structure subject to its duty to seek best execution.

BROKERAGE COMMISSIONS PAID TO BROKERS AFFILIATED WITH THE INVESTMENT MANAGER

Affiliates of the investment manager may engage in brokerage and other securities transactions on behalf of a fund according to procedures adopted by the Board and to the extent consistent with applicable provisions of the federal securities laws. Subject to approval by the Board, the same conditions apply to transactions with broker-dealer affiliates of any subadviser. The investment manager will use an affiliate only if (i) the investment manager determines that the fund will receive prices and executions at least as favorable as those offered by qualified independent brokers performing similar brokerage and other services for the fund and (ii) the affiliate charges the fund commission rates consistent with those the affiliate charges comparable unaffiliated customers in similar transactions and if such use is consistent with terms of the Investment Management Services Agreement.

VALUING FUND SHARES

In determining net assets before shareholder transactions, a fund's securities are valued as follows as of the close of business of the New York Stock Exchange (the Exchange):

- Securities traded on a securities exchange for which a last-quoted sales price is readily available are valued at the last-quoted sales price on the exchange where such security is primarily traded.

- Securities traded on a securities exchange for which a last-quoted sales price is not readily available are valued at the mean of the closing bid and asked prices, looking first to the bid and asked prices on the exchange where the security is primarily traded and, if none exist, to the over-the-counter market.

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- Securities included in the NASDAQ National Market System are valued at the last-quoted sales price in this market.

- Securities included in the NASDAQ National Market System for which a last- quoted sales price is not readily available, and other securities traded over-the-counter but not included in the NASDAQ National Market System are valued at the mean of the closing bid and asked prices.

- Futures and options traded on major exchanges are valued at the last- quoted sales price on their primary exchange.

- Foreign securities traded outside the United States are generally valued as of the time their trading is complete, which is usually different from the close of the Exchange. Foreign securities quoted in foreign currencies are translated into U.S. dollars utilizing spot exchange rates at the close of regular trading on the NYSE.

- Occasionally, events affecting the value of securities occur between the time the primary market on which the securities are traded closes and the close of the Exchange. If events materially affect the value of securities, the securities will be valued at their fair value according to procedures decided upon in good faith by the Board. This occurs most commonly with foreign securities, but may occur in other cases. The fair value of a security is likely to be different from the quoted or published price.

- Short-term securities maturing more than 60 days from the valuation date are valued at the readily available market price or approximate market value based on current interest rates. Short-term securities maturing in 60 days or less that originally had maturities of more than 60 days at acquisition date are valued at amortized cost using the market value on the 61st day before maturity. Short-term securities maturing in 60 days or less at acquisition date are valued at amortized cost. Amortized cost is an approximation of market value determined by systematically increasing the carrying value of a security if acquired at a discount, or reducing the carrying value if acquired at a premium, so that the carrying value is equal to maturity value on the maturity date.

- Securities without a readily available market price and securities for which the price quotations or valuations received from other sources are deemed unreliable or not reflective of market value are valued at fair value as determined in good faith by the Board. The Board is responsible for selecting methods it believes provide fair value.

- When possible, bonds are valued by a pricing service independent from the funds. If a valuation of a bond is not available from a pricing service, the bond will be valued by a dealer knowledgeable about the bond if such a dealer is available.

PORTFOLIO HOLDINGS DISCLOSURE

Each fund's Board and the investment manager believe that the investment ideas of the investment manager with respect to management of a fund should benefit the fund and its shareholders, and do not want to afford speculators an opportunity to profit by anticipating fund trading strategies or by using fund portfolio holdings information for stock picking. However, each fund's Board also believes that knowledge of the fund's portfolio holdings can assist shareholders in monitoring their investments, making asset allocation decisions, and evaluating portfolio management techniques.

Each fund's Board has therefore adopted the investment manager's policies and approved the investment manager's procedures, including the investment manager's oversight of subadviser practices, relating to disclosure of the fund's portfolio securities. These policies and procedures are intended to protect the confidentiality of fund portfolio holdings information and generally prohibit the release of such information until such information is made public, unless such persons have been authorized to receive such information on a selective basis, as described below. It is the policy of the fund not to provide or permit others to provide holdings information on a selective basis, and the investment manager does not intend to selectively disclose holdings information or expect that such holdings information will be selectively disclosed, except where necessary for the fund's operation or where there are legitimate business purposes for doing so and, in any case, where conditions are met that are designed to protect the interests of the fund and its shareholders. Although the investment manager seeks to limit the selective disclosure of portfolio holdings information and such selective disclosure is monitored under the fund's compliance program for conformity with the policies and procedures, there can be no assurance that these policies will protect the fund from the potential misuse of holdings information by individuals or firms in possession of that information. Under no circumstances may the investment manager, its affiliates or any employee thereof receive any consideration or compensation for disclosing such holdings information.

A complete schedule of each fund's portfolio holdings is available semi-annually and annually in shareholder reports filed on Form N-CSR and, after the first and third fiscal quarters, in regulatory filings on Form N-Q. These shareholder reports and regulatory filings are filed with the SEC in accordance with federal securities laws and are generally available within sixty (60) days of the end of a fund's fiscal quarter, on the SEC's website. Once holdings information is filed with the SEC,

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it will also be posted on the funds' website (riversource.com/funds), and it may be mailed, e-mailed or otherwise transmitted to any person.

In addition, the investment manager makes publicly available information regarding a fund's top ten holdings (including name and percentage of a fund's assets invested in each such holding) and the percentage breakdown of a fund's investments by country, sector and industry, as applicable. This holdings information is generally made available through the website, marketing communications (including printed advertisements and sales literature), and/or telephone customer service centers that support the fund. This holdings information is generally as of a month-end and is not released until it is at least thirty (30) days old.

From time to time, the investment manager may make partial or complete fund holdings information that is not publicly available on the website or otherwise available in advance of the time restrictions noted above (1) to its affiliated and unaffiliated service providers that require the information in the normal course of business in order to provide services to the fund (including, without limitation entities identified by name in the fund's prospectus or this SAI, such as custodians, auditors, subadvisers, financial printers (Cenveo, Inc., Vestek), pricing services (including Reuters Pricing Service, FT Interactive Data Corporation, Bear Stearns Pricing Service, and Kenny S&P), proxy voting services (Institutional Shareholder Services), and companies that deliver or support systems that provide analytical or statistical information (including Factset Research Systems, Bloomberg, L.P.), (2) to facilitate the review and/or rating of the fund by ratings and rankings agencies (including Morningstar, Inc., Thomson Financial and Lipper Inc.), (3) entities that provide trading, research or other investment related services (including Citigroup, Lehman Brothers Holdings, Merrill Lynch & Co., and Morgan Stanley), and (4) fund intermediaries that include the funds in discretionary wrap or other investment programs that request such information in order to support the services provided to investors in the programs. In such situations, the information is released subject to confidentiality agreements, duties imposed under applicable policies and procedures (for example, applicable codes of ethics) designed to prevent the misuse of confidential information, general duties under applicable laws and regulations, or other such duties of confidentiality. In addition, the fund discloses holdings information as required by federal, state or international securities laws, and may disclose holdings information in response to requests by governmental authorities, or in connection with litigation or potential litigation, a restructuring of a holding, where such disclosure is necessary to participate or explore participation in a restructuring of the holding (e.g., as part of a bondholder group), or to the issuer of a holding, pursuant to a request of the issuer or any other party who is duly authorized by the issuer.

Each fund's Board has adopted the policies of the investment manager and approved the procedures Ameriprise Financial has established to ensure that the fund's holdings information is only disclosed in accordance with these policies. Before any selective disclosure of holdings information is permitted, the person seeking to disclose such holdings information must submit a written request to the Portfolio Holdings Committee ("PHC"). The PHC is comprised of members from the investment manager's General Counsel's Office, Compliance, and Communications. The PHC has been authorized by the fund's Board to perform an initial review of requests for disclosure of holdings information to evaluate whether there is a legitimate business purpose for selective disclosure, whether selective disclosure is in the best interests of a fund and its shareholders, to consider any potential conflicts of interest between the fund, the investment manager, and its affiliates, and to safeguard against improper use of holdings information. Factors considered in this analysis are whether the recipient has agreed to or has a duty to keep the holdings information confidential and whether risks have been mitigated such that the recipient has agreed or has a duty to use the holdings information only as necessary to effectuate the purpose for which selective disclosure was authorized, including a duty not to trade on such information. Before portfolio holdings may be selectively disclosed, requests approved by the PHC must also be authorized by a fund's Chief Compliance Officer or the fund's General Counsel. On at least an annual basis the PHC reviews the approved recipients of selective disclosure and, where appropriate, requires a resubmission of the request, in order to re-authorize any ongoing arrangements. These procedures are intended to be reasonably designed to protect the confidentiality of fund holdings information and to prohibit their release to individual investors, institutional investors, intermediaries that distribute the fund's shares, and other parties, until such holdings information is made public or unless such persons have been authorized to receive such holdings information on a selective basis, as set forth above.

Although the investment manager has set up these procedures to monitor and control selective disclosure of holdings information, there can be no assurance that these procedures will protect a fund from the potential misuse of holdings information by individuals or firms in possession of that information.

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PROXY VOTING

GENERAL GUIDELINES, POLICIES AND PROCEDURES

The funds uphold a long tradition of supporting sound and principled corporate governance. For over 30 years, the Board, which consists of a majority of independent Board members, has determined policies and voted proxies. The funds' investment manager, RiverSource Investments, and the funds' administrator, Ameriprise Financial, provide support to the Board in connection with the proxy voting process.

GENERAL GUIDELINES

CORPORATE GOVERNANCE MATTERS -- The Board supports proxy proposals that it believes are tied to the interests of shareholders and votes against proxy proposals that appear to entrench management. For example:

- The Board generally votes in favor of proposals for an independent chairman or, if the chairman is not independent, in favor of a lead independent director.

- The Board supports annual election of all directors and proposals to eliminate classes of directors.

- In a routine election of directors, the Board will generally vote with management's recommendations because the Board believes that management and nominating committees of independent directors are in the best position to know what qualifications are required of directors to form an effective board. However, the Board will generally vote against a nominee who has been assigned to the audit, compensation, or nominating committee if the nominee is not independent of management based on established criteria. The Board will also withhold support for any director who fails to attend 75% of meetings or has other activities that appear to interfere with his or her ability to commit sufficient attention to the company and, in general, will vote against nominees who are determined to have been involved in options backdating.

- The Board generally supports proposals requiring director nominees to receive a majority of affirmative votes cast in order to be elected to the board, and opposes cumulative voting based on the view that each director elected should represent the interests of all shareholders.

- Votes in a contested election of directors are evaluated on a case-by-case basis. In general, the Board believes that incumbent management and nominating committees, with access to more and better information, are in the best position to make strategic business decisions. However, the Board will consider an opposing slate if it makes a compelling business case for leading the company in a new direction.

SHAREHOLDER RIGHTS PLANS -- The Board generally supports shareholder rights plans based on a belief that such plans force uninvited bidders to negotiate with a company's board. The Board believes these negotiations allow time for the company to maximize value for shareholders by forcing a higher premium from a bidder, attracting a better bid from a competing bidder or allowing the company to pursue its own strategy for enhancing shareholder value. The Board supports proposals to submit shareholder rights plans to shareholders and supports limiting the vote required for approval of such plans to a majority of the votes cast.

AUDITORS -- The Board values the independence of auditors based on established criteria. The Board supports a reasonable review of matters that may raise concerns regarding an auditor's service that may cause the Board to vote against a management recommendation, including, for example, auditor involvement in significant financial restatements, options backdating, material weaknesses in control, attempts to limit auditor liability or situations where independence has been compromised.

STOCK OPTION PLANS AND OTHER MANAGEMENT COMPENSATION ISSUES -- The Board expects company management to give thoughtful consideration to providing competitive long-term employee incentives directly tied to the interest of shareholders. The Board votes against proxy proposals that it believes dilute shareholder value excessively.

The Board believes that equity compensation awards can be a useful tool, when not abused, for retaining employees and giving them incentives to engage in conduct that will improve the performance of the company. In this regard, the Board generally favors minimum holding periods of stock obtained by senior management pursuant to an option plan and will vote against compensation plans for executives that it deems excessive.

SOCIAL AND CORPORATE POLICY ISSUES -- The Board believes proxy proposals should address the business interests of the corporation. Shareholder proposals sometime seek to have the company disclose or amend certain business practices based purely on social or environmental issues rather than compelling business arguments. In general, the Board recognizes our

Statement of Additional Information - Oct. 3, 2007 Page 30


fund shareholders are likely to have differing views of social and environmental issues and believes that these matters are primarily the responsibility of a company's management and its board of directors.

POLICIES AND PROCEDURES

The policy of the Board is to vote all proxies of the companies in which a fund holds investments. Because of the volume and complexity of the proxy voting process, including inherent inefficiencies in the process that are outside the control of the Board or the Proxy Team (below), not all proxies may be voted. The Board has implemented policies and procedures that have been reasonably designed to vote proxies and to ensure that there are no conflicts between interests of a fund's shareholders and those of the funds' principal underwriters, RiverSource Investments, or other affiliated persons. In exercising its proxy voting responsibilities, the Board may rely upon the research or recommendations of one or more third party service providers.

The administration of the proxy voting process is handled by the RiverSource Proxy Administration Team ("Proxy Team"). In exercising its responsibilities, the Proxy Team may rely upon one or more third party service providers. The Proxy Team assists the Board in identifying situations where its guidelines do not clearly require a vote in a particular manner and assists in researching matters and making voting recommendations. RiverSource Investments may recommend that a proxy be voted in a manner contrary to the Board's guidelines. In making recommendations to the Board about voting on a proposal, the investment manager relies on its own investment personnel (or the investment personnel of a fund's subadviser(s)) and information obtained from an independent research firm. The investment manager makes the recommendation in writing. The process requires that Board members who are independent from the investment manager consider the recommendation and decide how to vote the proxy proposal or establish a protocol for voting the proposal.

On an annual basis, or more frequently as determined necessary, the Board reviews recommendations to revise the existing guidelines or add new guidelines. Recommendations are based on, among other things, industry trends and the frequency that similar proposals appear on company ballots.

The Board considers management's recommendations as set out in the company's proxy statement. In each instance in which a fund votes against management's recommendation (except when withholding votes from a nominated director), the Board sends a letter to senior management of the company explaining the basis for its vote. This permits both the company's management and the Board to have an opportunity to gain better insight into issues presented by the proxy proposal(s).

VOTING IN COUNTRIES OUTSIDE THE UNITED STATES (NON-U.S. COUNTRIES) -- Voting proxies for companies not domiciled in the United States may involve greater effort and cost due to the variety of regulatory schemes and corporate practices. For example, certain non-U.S. countries require securities to be blocked prior to a vote, which means that the securities to be voted may not be traded within a specified number of days before the shareholder meeting. The Board typically will not vote securities in non-U.S. countries that require securities to be blocked as the need for liquidity of the securities in the funds will typically outweigh the benefit of voting. There may be additional costs associated with voting in non-U.S. countries such that the Board may determine that the cost of voting outweighs the potential benefit.

SECURITIES ON LOAN -- The Board will generally refrain from recalling securities on loan based upon its determination that the costs and lost revenue to the funds, combined with the administrative effects of recalling the securities, generally outweigh the benefit of voting the proxy. While neither the Board nor the funds' administrator assesses the economic impact and benefits of voting loaned securities on a case-by-case basis, situations may arise where the Board requests that loaned securities be recalled in order to vote a proxy. In this regard, if a proxy relates to matters that may impact the nature of a company, such as a proposed merger or acquisition, and the funds' ownership position is more significant, the Board has established a guideline to direct the funds' administrator to use its best efforts to recall such securities based upon its determination that, in these situations, the benefits of voting such proxies generally outweigh the costs or lost revenue to the funds, or any potential adverse administrative effects to the funds, of not recalling such securities.

INVESTMENT IN AFFILIATED FUNDS -- Certain RiverSource funds may invest in shares of other RiverSource funds (referred to in this context as "underlying funds") and may own substantial portions of these underlying funds. The proxy policy of the funds is to ensure that direct public shareholders of underlying funds control the outcome of any shareholder vote. To help manage this potential conflict of interest, recognizing that the direct public shareholders of these underlying funds may represent only a minority interest, the policy of the funds is to vote proxies of the underlying funds in the same proportion as the vote of the direct public shareholders. If there are no direct public shareholders of an underlying fund, the policy is to cast votes in accordance with instructions from the independent members of the Board.

Statement of Additional Information - Oct. 3, 2007 Page 31


OBTAIN A PROXY VOTING RECORD

Each year the RiverSource funds file their proxy voting records with the SEC and make them available by August 31 for the 12-month period ending June 30 of that year. The records can be obtained without charge through riversource.com/funds or searching the website of the SEC at www.sec.gov.

INVESTING IN A FUND

SALES CHARGE

Investors should understand that the purpose and function of the initial sales charge and distribution fee for Class A shares is the same as the purpose and function of the contingent deferred sales charge (CDSC) and distribution fee for Class B and Class C shares. The sales charges and distribution fees applicable to each class pay for the distribution of shares of a fund.

Shares of a fund are sold at the public offering price. The public offering price is the NAV of one share adjusted for the sales charge for Class A. For Class B, Class C, Class I and Class R5, there is no initial sales charge so the public offering price is the same as the NAV.

CLASS A -- CALCULATION OF THE SALES CHARGE Sales charges are determined as shown in the following table.

TABLE 3. CLASS A SALES CHARGE

                                                      SALES CHARGE* AS A PERCENTAGE OF:
TOTAL MARKET VALUE                                         PUBLIC OFFERING PRICE**        NET AMOUNT INVESTED
-------------------------------------------------------------------------------------------------------------
Up to $49,999                                                        5.75%                        6.10%
-------------------------------------------------------------------------------------------------------------
$50,000 - $99,999                                                    4.75%                        4.99%
-------------------------------------------------------------------------------------------------------------
$100,000 - $249,999                                                  3.50%                        3.63%
-------------------------------------------------------------------------------------------------------------
$250,000 - $499,999                                                  2.50%                        2.56%
-------------------------------------------------------------------------------------------------------------
$500,000 - $999,999                                                  2.00%                        2.04%
-------------------------------------------------------------------------------------------------------------
$1,000,000 or more***                                                0.00%                        0.00%
-------------------------------------------------------------------------------------------------------------

* Because of rounding in the calculation of purchase price, the portion of the sales charge retained by the distributor may vary and the actual sales charge you pay may be more or less than the sales charge calculated using these percentages.

** Purchase price includes the sales charge.

*** Although there is no sales charge for purchases with a total market value over $1,000,000, and therefore no re-allowance, the distributor may pay a financial intermediary making such a sale. Money market funds do not have a sales charge for Class A shares.

CLASS A -- LETTER OF INTENT (LOI)
If you intend to invest $50,000 or more over a period of time, you may be able to reduce the sales charge for investments in Class A by completing a LOI form and committing to invest a certain amount. The LOI must be filed with and accepted in good order by the distributor. The LOI can start at any time and you will have up to 13 months to fulfill your commitment. The LOI start date can be backdated by up to 90 days, but backdating the LOI will shorten the going forward window by the length of the backdating. Your holdings in RiverSource funds acquired more than 90 days before your financial institution receives your signed LOI will not be counted towards the LOI commitment amount and cannot be used as the starting point for the LOI. While these purchases cannot be included within an LOI, you may still be able to take advantage of a reduced sales charge on future purchases because the historic purchases may count toward the combined market value for Rights of Accumulation. For example, if you made an investment more than 90 days ago, and that investment's current market value is $75,000, the sales charge you would pay on additional investment is 4.5% until the market value of your accounts is $100,000, at which point your sales charge will be reduced to 3.5%. If you plan to invest another $50,000 over the next 13 month period, you may not rely on a letter of intent to take immediate advantage of the lower 3.5% sales charge, but instead would naturally realize the lower sales charge of 3.5% (under Rights of Accumulation) after you invested $25,000. To take immediate advantage of the 3.5% sales charge level, you would need to sign a $100,000 LOI and then invest another $100,000. Your investments will be charged the sales charge that applies to the amount you have committed to invest under the LOI. Five percent of the commitment amount will be placed in escrow. The LOI will remain in effect for the entire 13 months, even if you reach your commitment amount. At the end of the 13-month period, the LOI will end and the shares will be released from escrow. Once the LOI has ended, future sales charges will be determined by Rights of Accumulation or the total value of the new investment combined with the market value of the existing RiverSource fund investments as described in the prospectus. If you do not invest the commitment amount by the end of the 13 months, the remaining unpaid

Statement of Additional Information - Oct. 3, 2007 Page 32


sales charge will be redeemed from the escrowed shares and the remaining balance released from escrow. The commitment amount does not include purchases in any class of RiverSource funds other than Class A; does not include reinvested dividends and directed dividends earned in any RiverSource funds; purchases in RiverSource funds held within a wrap product; and purchases of RiverSource Cash Management Fund and RiverSource Tax-Exempt Money Market Fund unless they are subsequently exchanged to Class A shares of a RiverSource fund within the 13 month period. A LOI is not an option (absolute right) to buy shares. If you purchase shares through different channels, for example, in a brokerage account or through a third party, you must inform your financial institution in writing about the LOI when placing any purchase orders during the period of the LOI. If you do not complete and file the LOI form, or do not request the reduced sales charge at the time of purchase, you will not be eligible for the reduced sales charge.

CLASS B SHARES
Class B shares have a CDSC for six years. For Class B shares purchased prior to May 21, 2005, those shares will convert to Class A shares in the ninth calendar year of ownership. For Class B shares purchased beginning May 21, 2005, those shares will convert to Class A shares one month after the eighth year of ownership.

CLASS C SHARES
Class C shares are available to all investors. Class C shares are sold without a front-end sales charge. For Class C shares, a 1% CDSC may apply if shares are sold within one year after purchase. Class C shares are subject to a distribution fee.

CLASS I SHARES
Class I shares are offered to qualifying institutional investors. Class I shares are sold without a front-end sales charge or CDSC.

CLASS R5 SHARES
Class R5 shares are offered to certain institutional investors. Class R5 shares are sold without a front-end sales charge or a CDSC. The following investors are eligible to purchase Class R5 shares:

- Qualified employee benefit plans;

- Trust companies or similar institutions, and charitable organizations that meet the definition in Section 501(c)(3) of the Internal Revenue Code;

- Nonqualified deferred compensation plans;

- State sponsored college savings plans established under Section 529 of the Internal Revenue Code;

- Health Savings Accounts (HSAs) created pursuant to public law 108-173;

- Institutional or corporate accounts above a threshold established by the distributor (currently $1 million per fund or $10 million in all RiverSource funds); and

- Bank Trusts.

SYSTEMATIC INVESTMENT PROGRAMS
You decide how often to make payments -- monthly, quarterly, or semiannually. Provided your account meets the minimum balance requirement, you are not obligated to make any payments. You can omit payments or discontinue the investment program altogether. A fund also can change the program or end it at any time.

REJECTION OF BUSINESS
Each fund and RiverSource Service Corporation reserve the right to reject any business, in its sole discretion.

SELLING SHARES

You have a right to sell your shares at any time. For an explanation of sales procedures, please see the applicable prospectus.

During an emergency, the Board can suspend the computation of NAV, stop accepting payments for purchase of shares, or suspend the duty of a fund to redeem shares for more than seven days. Such emergency situations would occur if:

- The Exchange closes for reasons other than the usual weekend and holiday closings or trading on the Exchange is restricted, or

- Disposal of a fund's securities is not reasonably practicable or it is not reasonably practicable for the fund to determine the fair value of its net assets, or,

- The SEC, under the provisions of the 1940 Act, declares a period of emergency to exist.

Statement of Additional Information - Oct. 3, 2007 Page 33


Should a fund stop selling shares, the Board may make a deduction from the value of the assets held by the fund to cover the cost of future liquidations of the assets so as to distribute these costs fairly among all shareholders.

Each fund has elected to be governed by Rule 18f-1 under the 1940 Act, which obligates the fund to redeem shares in cash, with respect to any one shareholder during any 90-day period, up to the lesser of $250,000 or 1% of the net assets of the fund at the beginning of the period. Although redemptions in excess of this limitation would normally be paid in cash, the fund reserves the right to make these payments in whole or in part in securities or other assets in case of an emergency, or if the payment of a redemption in cash would be detrimental to the existing shareholders of the fund as determined by the Board. In these circumstances, the securities distributed would be valued as set forth in this SAI. Should a fund distribute securities, a shareholder may incur brokerage fees or other transaction costs in converting the securities to cash.

PAY-OUT PLANS

You can use any of several pay-out plans to redeem your investment in regular installments. If you redeem shares, you may be subject to a contingent deferred sales charge as discussed in the prospectus. While the plans differ on how the pay-out is figured, they all are based on the redemption of your investment. Net investment income dividends and any capital gain distributions will automatically be reinvested, unless you elect to receive them in cash. If you redeem an IRA or a qualified retirement account, certain restrictions, federal tax penalties, and special federal income tax reporting requirements may apply. You should consult your tax advisor about this complex area of the tax law.

Applications for a systematic investment in a class of a fund subject to a sales charge normally will not be accepted while a pay-out plan for any of those funds is in effect. Occasional investments, however, may be accepted.

To start any of these plans, please consult your financial institution. Your authorization must be received at least five days before the date you want your payments to begin. Payments will be made on a monthly, bimonthly, quarterly, semiannual, or annual basis. Your choice is effective until you change or cancel it.

The following pay-out plans are designed to take care of the needs of most shareholders in a way that can be handled efficiently and at a reasonable cost. If you need a more irregular schedule of payments, it may be necessary for you to make a series of individual redemptions, in which case you will have to send in a separate redemption request for each pay-out. Each fund reserves the right to change or stop any pay-out plan and to stop making such plans available.

PLAN #1: PAY-OUT FOR A FIXED PERIOD OF TIME
If you choose this plan, a varying number of shares will be redeemed at regular intervals during the time period you choose. This plan is designed to end in complete redemption of all shares in your account by the end of the fixed period.

PLAN #2: REDEMPTION OF A FIXED NUMBER OF SHARES
If you choose this plan, a fixed number of shares will be redeemed for each payment and that amount will be sent to you. The length of time these payments continue is based on the number of shares in your account.

PLAN #3: REDEMPTION OF A FIXED DOLLAR AMOUNT
If you decide on a fixed dollar amount, whatever number of shares is necessary to make the payment will be redeemed in regular installments until the account is closed.

PLAN #4: REDEMPTION OF A PERCENTAGE OF NET ASSET VALUE
Payments are made based on a fixed percentage of the net asset value of the shares in the account computed on the day of each payment. Percentages range from 0.25% to 0.75%. For example, if you are on this plan and arrange to take 0.5% each month, you will get $100 if the value of your account is $20,000 on the payment date.

TAXES

For tax purposes, an exchange is considered a sale and purchase, and may result in a gain or loss. A sale is a taxable transaction. If you sell shares for less than their cost, the difference is a capital loss. If you sell shares for more than their cost, the difference is a capital gain. Your gain may be short term (for shares held for one year or less) or long term (for shares held more than one year).

If you buy Class A shares and within 91 days exchange into another fund, you may not include the sales charge in your calculation of tax gain or loss on the sale of the first fund you purchased. The sales charge may be included in the calculation of your tax gain or loss on a subsequent sale of the second fund you purchased.

Statement of Additional Information - Oct. 3, 2007 Page 34


FOR EXAMPLE
You purchase 100 shares of an Equity Fund having a public offering price of $10.00 per share. With a sales load of 5.75%, you pay $57.50 in sales load. With a NAV of $9.425 per share, the value of your investment is $942.50. Within 91 days of purchasing that fund, you decide to exchange out of that fund, now at a NAV of $11.00 per share, up from the original NAV of $9.425, and purchase a second fund, at a NAV of $15.00 per share. The value of your investment is now $1,100.00 ($11.00 x 100 shares). You cannot use the $57.50 paid as a sales load when calculating your tax gain or loss in the sale of the first fund shares. So instead of having a $100.00 gain ($1,100.00 -- $1,000.00), you have a $157.50 gain ($1,100.00 -- $942.50). You can include the $57.50 sales load in the calculation of your tax gain or loss when you sell shares in the second fund.

If you have a nonqualified investment in a fund and you wish to move part or all of those shares to an IRA or qualified retirement account in the fund, you can do so without paying a sales charge. However, this type of exchange is considered a redemption of shares and may result in a gain or loss for tax purposes. In addition, this type of exchange may result in an excess contribution under IRA or qualified plan regulations if the amount exchanged exceeds annual contribution limitations. You should consult your tax advisor for further details about this complex subject.

Net investment income dividends received should be treated as dividend income for federal income tax purposes. Corporate shareholders are generally entitled to a deduction equal to 70% of that portion of a fund's dividend that is attributable to dividends the fund received from domestic (U.S.) securities. If there is debt-financed portfolio stock, that is, bank financing is used to purchase long securities, the 70% dividends received deduction would be reduced by the average amount of portfolio indebtedness divided by the average adjusted basis in the stock. This does not impact the qualified dividend income available to individual shareholders. For the most recent fiscal period, net investment income dividends qualified for the corporate deduction as shown in the following table.

Only certain qualified dividend income (QDI) will be subject to the 15% and 5% (and 0%) tax rates. QDI is dividends earned from domestic corporations and qualified foreign corporations. Qualified foreign corporations are corporations incorporated in a U.S. possession, corporations whose stock is readily tradable on an established U.S. securities market (ADRs), and certain other corporations eligible for relief under an income tax treaty with the U.S. that includes an exchange of information agreement. Excluded are passive foreign investment companies (PFICs), foreign investment companies and foreign personal holding companies. Holding periods for shares must also be met to be eligible for QDI treatment (more than 60 days for common stock and more than 90 days for certain preferred's dividends).

A fund may be subject to U.S. taxes resulting from holdings in a PFIC. To avoid taxation, a fund may make an election to mark to market. A foreign corporation is a PFIC when 75% or more of its gross income for the taxable year is passive income or 50% or more of the average value of its assets consists of assets that produce or could produce passive income.

Income earned by a fund may have had foreign taxes imposed and withheld on it in foreign countries. Tax conventions between certain countries and the U.S. may reduce or eliminate such taxes. If more than 50% of a fund's total assets at the close of its fiscal year consists of securities of foreign corporations, the fund will be eligible to file an election with the Internal Revenue Service under which shareholders of the fund would be required to include their pro rata portions of foreign taxes withheld by foreign countries as gross income in their federal income tax returns. These pro rata portions of foreign taxes withheld may be taken as a credit or deduction in computing the shareholders' federal income taxes. If the election is filed, the fund will report to its shareholders the per share amount of such foreign taxes withheld and the amount of foreign tax credit or deduction available for federal income tax purposes.

Capital gain distributions, if any, received by shareholders should be treated as long-term capital gains regardless of how long shareholders owned their shares. Short-term capital gains earned by a fund are paid to shareholders as part of their ordinary income dividend and are taxable. Special rates on capital gains may apply to sales of precious metals, if any, owned directly by a fund and to investments in REITs.

Under the Internal Revenue Code of 1986 (the Code), gains or losses attributable to fluctuations in exchange rates that occur between the time a fund accrues interest or other receivables, or accrues expenses or other liabilities denominated in a foreign currency and the time the fund actually collects such receivables or pays such liabilities generally are treated as ordinary income or ordinary loss. Similarly, gains or losses on disposition of debt securities denominated in a foreign currency attributable to fluctuations in the value of the foreign currency between the date of acquisition of the security and the date of disposition also are treated as ordinary gains or losses. These gains or losses, referred to under the Code as "section 988" gains or losses, may increase or decrease the amount of a fund's investment company taxable income to be distributed to its shareholders as ordinary income.

Under federal tax law, by the end of a calendar year a fund must declare and pay dividends representing 98% of ordinary income for that calendar year and 98% of net capital gains (both long-term and short-term) for the 12-month period ending Oct. 31 of that calendar year. The fund is subject to an excise tax equal to 4% of the excess, if any, of the amount required

Statement of Additional Information - Oct. 3, 2007 Page 35


to be distributed over the amount actually distributed. Each fund intends to comply with federal tax law and avoid any excise tax. For purposes of the excise tax distributions, section 988 ordinary gains and losses are distributable based on an Oct. 31 year end. This is an exception to the general rule that ordinary income is paid based on a calendar year end.

The Code imposes two asset diversification rules that apply to each fund as of the close of each quarter. First, as to 50% of its holdings, the fund may hold no more than 5% of its assets in securities of one issuer and no more than 10% of any one issuer's outstanding voting securities. Second, a fund cannot have more than 25% of its assets in any one issuer.

If a mutual fund is the holder of record of any share of stock on the record date for any dividend payable with respect to the stock, the dividend will be included in gross income by the fund as of the later of (1) the date the share became ex-dividend or (2) the date the fund acquired the share. Because the dividends on some foreign equity investments may be received some time after the stock goes ex-dividend, and in certain rare cases may never be received by the fund, this rule may cause a fund to pay income to its shareholders that it has not actually received. To the extent that the dividend is never received, the fund will take a loss at the time that a determination is made that the dividend will not be received. Distributions, if any, that are in excess of a fund's current or accumulated earnings and profits will first reduce a shareholder's tax basis in the fund and, after the basis is reduced to zero, will generally result in capital gains to a shareholder.

This is a brief summary that relates to federal income taxation only. Shareholders should consult their tax advisor as to the application of federal, state, and local income tax laws to fund distributions.

SERVICE PROVIDERS

INVESTMENT MANAGEMENT SERVICES

RiverSource Investments is the investment manager for each fund. Under the Investment Management Services Agreement, the investment manager, subject to the policies set by the Board, provides investment management services.

For its services, the investment manager is paid a fee based on the following schedule. Each class of a fund pays its proportionate share of the fee. The fee is calculated for each calendar day on the basis of net assets as of the close of the preceding day.

TABLE 4. INVESTMENT MANAGEMENT SERVICES AGREEMENT FEE SCHEDULE

                                                                                     ANNUAL RATE AT EACH
FUND                                                         NET ASSETS (BILLIONS)       ASSET LEVEL
--------------------------------------------------------------------------------------------------------
RiverSource 120/20 Contrarian Equity Fund                         First $0.25               0.950%
RiverSource 130/30 U.S. Equity Fund                                Next $0.25               0.930%
                                                                   Next $0.50               0.910%
                                                                    Over $1.0               0.890%
--------------------------------------------------------------------------------------------------------

Before the fee based on the asset charge is paid, it is adjusted for the fund's investment performance relative its primary benchmark (Index) as shown in the table below.

FUND                                                   BENCHMARK INDEX
-----------------------------------------------------------------------
120/20 Contrarian Equity                             Russell 3000 Index
-----------------------------------------------------------------------
130/30 U.S. Equity                                   Russell 1000 Index
-----------------------------------------------------------------------

The adjustment, determined monthly, is determined by measuring the percentage difference over a rolling 36-month period (subject to earlier determination based on the Transition Period, as set forth below) between the annualized performance of one Class A share of the Fund and the annualized performance of the Index ("Performance Difference"). The Performance Difference will then be used to determine the Adjustment Rate. The Adjustment Rate, computed to five decimal places, is determined in accordance with the following table and is applied against average daily net assets for the applicable rolling

Statement of Additional Information - Oct. 3, 2007 Page 36


36-month period or Transition Period, and divided by 12 to obtain the fee reflecting the performance fee adjustment for that month.

TABLE 5. PERFORMANCE INCENTIVE ADJUSTMENT CALCULATION

PERFORMANCE
DIFFERENCE                                                             ADJUSTMENT RATE
------------------------------------------------------------------------------------------------------------------
0.00% - 1.00%                              0
1.00% - 6.00%                              10 basis points times the performance difference over 1.00%, times 100
                                           (maximum 50 basis points if a 6% performance difference)
6.00% or more                              50 basis points

For example, if the Performance Difference is 2.38%, the adjustment rate is
0.00138 [the 1.38% performance difference over 1.00%] x 0.0010 [10 basis points]
x 100. Rounded to five decimal places, the adjustment rate is 0.00138. This Adjustment Rate of 0.00138 is then applied against the average daily net assets for the applicable rolling 36-month or Transition Period, and divided by 12, which provides the performance adjustment fee for that month. Where the Fund's Class A performance exceeds that of the Index for the applicable rolling 36- month period or Transition Period, the fee paid to the Investment Manager will increase by the adjustment rate. Where the performance of the Index exceeds the performance of the Fund's Class A shares for the applicable rolling 36-month period or Transition Period, the fee paid to the Investment Manager will decrease by the adjustment rate.

The 36-month comparison period rolls over with each succeeding month, so that it always equals 36 months, ending with the month for which the performance adjustment is being computed.

TRANSITION PERIOD

The performance incentive adjustment will not be calculated for the first 24 months from the inception of the fund. After 24 full calendar months, the performance fee adjustment will be determined using the average assets and Performance Difference over the first 24 full calendar months, and the Adjustment Rate will be applied in full. Each successive month an additional calendar month will be added to the performance adjustment computation. After 36 full calendar months, the full rolling 36-month period will take affect.

CHANGE IN INDEX

If an Index ceases to be published for a period of more than 90 days, changes in any material respect, otherwise becomes impracticable or, at the discretion of the Board, is no longer appropriate to use for purposes of a performance incentive adjustment, the Board may take action it deems appropriate and in the best interests of shareholders, including: (1) discontinuance of the performance incentive adjustment until such time as it approves a substitute index, or (2) adoption of a methodology to transition to a substitute index it has approved.

In the case of a change in index, a fund's performance will be compared to a 36 month blended index return that reflects the performance of the current index for the portion of the 36 month performance measurement period beginning the effective date of the current index and the performance of the prior index for the remainder of the measurement period. At the conclusion of the transition period, the performance of the prior index will be eliminated from the performance incentive adjustment calculation, and the calculation will include only the performance of the current index.

The management fee is paid monthly. Under the agreement, a fund also pays taxes, brokerage commissions and nonadvisory expenses, which include custodian fees and charges; fidelity bond premiums; certain legal fees; registration fees for shares; consultants' fees; compensation of Board members, officers and employees not employed by the investment manager or its affiliates; corporate filing fees; organizational expenses; expenses incurred in connection with lending securities; interest and fee expense related to a fund's participation in inverse floater structures; and expenses properly payable by a fund, approved by the Board.

MANAGER OF MANAGERS EXEMPTION. The RiverSource funds have received an order from the SEC that permits RiverSource Investments, subject to the approval of the Board, to appoint a subadviser or change the terms of a subadvisory agreement for a fund without first obtaining shareholder approval. The order permits the fund to add or change unaffiliated subadvisers or the fees paid to subadvisers from time to time without the expense and delays associated with obtaining shareholder approval of the change.

Statement of Additional Information - Oct. 3, 2007 Page 37


PORTFOLIO MANAGERS. The following table provides information about the fund's portfolio managers as of July 31, 2007.

TABLE 6. PORTFOLIO MANAGERS

                                                  OTHER ACCOUNTS MANAGED (EXCLUDING THE FUND)
                                        ---------------------------------------------------------------
                                        NUMBER AND     APPROXIMATE        PERFORMANCE      OWNERSHIP OF    POTENTIAL
                          PORTFOLIO       TYPE OF         TOTAL              BASED             FUND        CONFLICTS
FUND                       MANAGER       ACCOUNT*       NET ASSETS        ACCOUNTS(A)        SHARES(B)    OF INTEREST
---------------------------------------------------------------------------------------------------------------------
120/20 Contrarian       Warren Spitz    9 RICs       $18.03 billion    6 RICs ($17.57 B)       None            (1)
  Equity                Steve Schroll   1 PIV        $60.54 million
                        Laton Spahr     5 other      $197.47 million
                        Paul Stocking   accounts
---------------------------------------------------------------------------------------------------------------------
130/30 U.S. Equity      Bob Ewing       8 RICs       $13.26 billion    7 RICs ($12.87 B)       None            (1)
                                        2 PIVs       $1.22 million
                                        2 other      $90.78 million
                                        accounts
                        Nick Thakore    6 RICs       $14.11 billion    5 RICs ($13.71 B)       None            (1)
                                        2 PIVs       $1.22 million
                                        2 other      $90.78 million
                                        accounts
---------------------------------------------------------------------------------------------------------------------
                        STRUCTURE OF
FUND                    COMPENSATION
------------------------------------
120/20 Contrarian            (2)
  Equity
------------------------------------
130/30 U.S. Equity           (2)



                             (2)
------------------------------------

* RIC refers to a Registered Investment Company; PIV refers to a Pooled Investment Vehicle.

(a) Number of accounts for which the advisory fee paid is based in part or wholly on performance and the aggregate net assets in those accounts.

(b) Shares of the fund were not yet being offered as of July 31, 2007.

POTENTIAL CONFLICTS OF INTEREST
(1) RiverSource Investments portfolio managers may manage one or more mutual funds as well as other types of accounts, including hedge funds, proprietary accounts, separate accounts for institutions and individuals, and other pooled investment vehicles. Portfolio managers make investment decisions for an account or portfolio based on its investment objectives and policies, and other relevant investment considerations. A portfolio manager may manage another account whose fees may be materially greater than the management fees paid by the Fund and may include a performance-based fee. Management of multiple funds and accounts may create potential conflicts of interest relating to the allocation of investment opportunities, and the aggregation and allocation of trades. In addition, RiverSource Investments monitors a variety of areas (e.g., allocation of investment opportunities) and compliance with the firm's Code of Ethics, and places additional investment restrictions on portfolio managers who manage hedge funds and certain other accounts.

RiverSource Investments has a fiduciary responsibility to all of the clients for which it manages accounts. RiverSource Investments seeks to provide best execution of all securities transactions and to aggregate securities transactions and then allocate securities to client accounts in a fair and equitable basis over time. RiverSource Investments has developed policies and procedures, including brokerage and trade allocation policies and procedures, designed to mitigate and manage the potential conflicts of interest that may arise from the management of multiple types of accounts for multiple clients.

In addition to the accounts above, portfolio managers may manage accounts in a personal capacity that may include holdings that are similar to, or the same as, those of the fund. The investment manager's Code of Ethics is designed to address conflicts and, among other things, imposes restrictions on the ability of the portfolio managers and other "investment access persons" to invest in securities that may be recommended or traded in the fund and other client accounts.

STRUCTURE OF COMPENSATION
(2) Portfolio manager compensation is typically comprised of (i) a base salary,
(ii) an annual cash bonus, a portion of which may be subject to a mandatory deferral program, and may include (iii) an equity incentive award in the form of stock options and/or restricted stock. The annual bonus is paid from a team bonus pool that is based on the performance of the accounts managed by the portfolio management team, which might include mutual funds, institutional portfolios and hedge funds. Funding for the bonus pool for equity portfolio managers is determined by a percentage of the aggregate assets under management in the accounts managed by the portfolio managers, including the fund, plus, where applicable, a percentage of the assets of the funds they support as research analysts*, and by the short term (typically one-year) and long-term (typically three year) performance of those accounts in relation to the relevant peer group universe. Funding

Statement of Additional Information - Oct. 3, 2007 Page 38


for the bonus pool for fixed income portfolio managers is determined by the aggregate market competitive bonus targets for the teams of which the portfolio manager is a member and by the short-term (typically one year) and long-term (typically three year) performance of those accounts in relation to applicable benchmarks or the relevant peer group universe. Bonus pool funding for Lynn Hopton and Yvonne Stevens, is based upon a percentage of profits generated by the institutional portfolios they manage. Lynn Hopton and Yvonne Stevens may also be paid from a bonus pool based upon the performance of the mutual fund(s) they manage. Funding for this bonus pool is determined by a percentage of the aggregate assets under management in the mutual fund(s) they manage, and by the short term (typically one-year) and long-term (typically three year) performance of the mutual fund(s) in relation to the relevant peer group universe. With respect to hedge funds and separately managed accounts that follow a hedge fund mandate, funding for the bonus pool is a percentage of performance fees earned on the hedge funds or accounts managed by the portfolio managers, plus, where applicable, a percentage of performance fees earned on the hedge funds or accounts they support as research analysts*.

Senior management of RiverSource Investments has the discretion to increase or decrease the size of the part of the bonus pool and to determine the exact amount of each portfolio manager's bonus paid from this portion of the bonus pool based on his/her performance as an employee. In addition, where portfolio managers invest in a hedge fund managed by the investment manager, they receive a cash reimbursement for the fees charged on their hedge fund investments. Senior management of RiverSource Investments does not have discretion over the size of the bonus pool related to institutional portfolios managed by Lynn Hopton and Yvonne Stevens. RiverSource Investments portfolio managers are provided with a benefits package, including life insurance,

* The portfolio managers that currently support funds as research analysts are: Clay Hoes, Julene Melquist, Sam Murphy and Mike Marzolf.

ADMINISTRATIVE SERVICES

Each fund listed in the table below has an Administrative Services Agreement with Ameriprise Financial. Under this agreement, the fund pays Ameriprise Financial for providing administration and accounting services. The fee is calculated as follows:

TABLE 7. ADMINISTRATIVE SERVICES AGREEMENT FEE SCHEDULE

                                                          ASSET LEVELS AND BREAKPOINTS IN APPLICABLE FEES
                                    -------------------------------------------------------------------------------------------
                                                       $500,000,001 -   $1,000,000,001 -   $3,000,000,001 -
FUNDS                               $0 - 500,000,000    1,000,000,000     3,000,000,000     12,000,000,000    $12,000,000,001 +
-------------------------------------------------------------------------------------------------------------------------------
120/20 Contrarian Equity                  0.080%            0.075%            0.070%             0.060%             0.050%
130/30 U.S. Equity
-------------------------------------------------------------------------------------------------------------------------------

The fee is calculated for each calendar day on the basis of net assets as of the close of the preceding day.

Third parties with which Ameriprise Financial contracts to provide services for the fund or its shareholders may pay a fee to Ameriprise Financial to help defray the cost of providing administrative and accounting services. The amount of any such fee is negotiated separately with each service provider and does not constitute compensation for investment advisory, distribution, or other services. Payment of any such fee neither increases nor reduces fees or expenses paid by shareholders of the fund.

TRANSFER AGENCY SERVICES

Each fund has a Transfer Agency Agreement with RiverSource Service Corporation (the "transfer agent") located at 734 Ameriprise Financial Center, Minneapolis, MN 55474. This agreement governs RiverSource Service Corporation's responsibility for administering and/or performing transfer agent functions, for acting as service agent in connection with dividend and distribution functions and for performing shareholder account administration agent functions in connection with the issuance, exchange and redemption or repurchase of the fund's shares.

CLASS A, CLASS B AND CLASS C. For Class A, Class B and Class C, RiverSource Service Corporation will earn a fee from the fund determined by multiplying the number of shareholder accounts at the end of the day by a rate determined for each class per year and dividing by the number of days in the year. The fund will pay on the basis of the relative percentage of net assets of each class of shares, first allocating the base fee (equal to Class A shares) across share classes, and then allocating the incremental per share class fee, based on the number of shareholder accounts.

Statement of Additional Information - Oct. 3, 2007 Page 39


The annual per account fee accrued daily and payable monthly, for the applicable classes is as follows:

          CLASS   CLASS
CLASS A     B       C
-----------------------
 $19.50  $20.50  $20.00

CLASS R5. For Class R5, RiverSource Service Corporation will earn a fee from the fund, accrued daily and payable monthly, determined by multiplying the average daily net assets of the applicable class by 0.05%.

In addition, an annual closed-account fee of $5.00 per inactive account is charged on a pro rata basis for 12 months from the date the account becomes inactive. The fees paid to RiverSource Service Corporation may be changed by the Board without shareholder approval.

DISTRIBUTION SERVICES

RiverSource Distributors, Inc. and Ameriprise Financial Services, Inc. (collectively, the distributor), 70100 Ameriprise Financial Center, Minneapolis, MN 55474, both wholly owned subsidiaries of Ameriprise Financial, Inc., serve as the fund's principal underwriter. The fund's shares are offered on a continuous basis. Under a Distribution Agreement, sales charges deducted for distributing fund shares are paid to the distributor daily.

PLAN AND AGREEMENT OF DISTRIBUTION

To help defray the cost of distribution and servicing not covered by the sales charges received under the Distribution Agreement, each fund listed in Table 24. 12b-1 Fees, approved a Plan of Distribution (Plan) and entered into an agreement under the Plan pursuant to Rule 12b-1 under the 1940 Act. Under the Plan, of the type known as a reimbursement plan, the fund pays the distributor a fee up to actual expenses incurred at an annual rate as follows:

The fee is equal on an annual basis to the following percentage of the average daily net assets of the fund attributable to the applicable class:

CLASS A  CLASS B  CLASS C
-------------------------
 0.25%    1.00%    1.00%

For Class B and Class C, up to 0.75% of the fee is reimbursed for distribution expenses. Up to an additional 0.25% is paid to the distributor to reimburse certain expenses incurred in connection with providing services to fund shareholders.

Distribution and shareholder servicing expenses include payment of distribution and shareholder servicing fees to financial institutions that sell shares of the fund. Financial institutions may compensate their financial advisors with the distribution and shareholder servicing fees paid to them by the distributor. Payments under the Plan are intended to result in an increase in fund assets and thus potentially result in economies of scale and lower costs for all shareholders.

Each class has exclusive voting rights on the Plan as it applies to that class. In addition, because Class B shares convert to Class A shares, Class B shareholders have the right to vote on any material increase to expenses charged under the Class A plan.

Distribution expenses covered under this Plan include commissions to financial intermediaries, printing prospectuses and reports used for sales purposes, the preparation, printing and distribution of advertising and sales literature, personnel, travel, office expense and equipment, and other distribution-related expenses. Shareholder service expenses include costs of establishing and maintaining shareholder accounts and records, assisting with purchase, redemption and exchange requests, arranging for bank wires, monitoring dividend payments from the funds on behalf of shareholders, forwarding certain shareholder communications from funds to shareholders, receiving and responding to inquiries and answering questions regarding the funds, aiding in maintaining the investment of shareholders in the funds and other service-related expenses.

A substantial portion of the expenses are not specifically identified to any one of the RiverSource funds. The fee is not allocated to any one service (such as advertising, compensation to financial intermediaries, or other uses). However, a significant portion of the fee is generally used for sales and promotional expenses.

The Plan must be approved annually by the Board, including a majority of the disinterested Board members, if it is to continue for more than a year. At least quarterly, the Board reviews written reports concerning the amounts expended under the Plan and the purposes for which such expenditures were made. The Plan and any agreement related to it may be terminated at any time by vote of a majority of Board members who are not interested persons of the fund and have no direct or indirect financial interest in the operation of the Plan or in any agreement related to the Plan, or by vote of a majority of the outstanding voting securities of the relevant class of shares or by the distributor.

Statement of Additional Information - Oct. 3, 2007 Page 40


Any agreement related to the Plan will terminate in the event of its assignment, as that term is defined in the 1940 Act. The Plan may not be amended to increase the amount to be spent for distribution without shareholder approval, and all material amendments to the Plan must be approved by a majority of the Board members, including a majority of the Board members who are not interested persons of the fund and who do not have a financial interest in the operation of the Plan or any agreement related to it. The selection and nomination of disinterested Board members is the responsibility of the other disinterested Board members. No Board member who is not an interested person has any direct or indirect financial interest in the operation of the Plan or any related agreement.

CUSTODIAN SERVICES

The fund's securities and cash are held by The Bank of New York, 90 Washington Street, New York, NY 10286, through a custodian agreement. The custodian is permitted to deposit some or all of its securities in central depository systems as allowed by federal law. For its services, the fund pays the custodian a maintenance charge and a charge per transaction in addition to reimbursing the custodian's out-of-pocket expenses. As part of this arrangement, securities purchased outside the United States are maintained in the custody of various foreign branches of The Bank of New York or in other financial institutions as permitted by law.

BOARD SERVICES CORPORATION

The funds have an agreement with Board Services Corporation (Board Services) located at 901 Marquette Avenue South, Suite 2810, Minneapolis, MN 55402. This agreement sets forth the terms of Board Services' responsibility to serve as an agent of the funds for purposes of administering the payment of compensation to each independent Board member, to provide office space for use by the funds and their boards, and to provide any other services to the boards or the independent members, as may be reasonably requested.

ORGANIZATIONAL INFORMATION

Each fund is an open-end management investment company. The fund's headquarters are at 901 S. Marquette Ave., Suite 2810, Minneapolis, MN 55402-3268.

SHARES

The shares of a fund represent an interest in that fund's assets only (and profits or losses), and, in the event of liquidation, each share of a fund would have the same rights to dividends and assets as every other share of that fund.

VOTING RIGHTS

As a shareholder in a fund, you have voting rights over the fund's management and fundamental policies. You are entitled to vote based on your total dollar interest in the fund. Each class, if applicable, has exclusive voting rights with respect to matters for which separate class voting is appropriate under applicable law. All shares have cumulative voting rights with respect to the election of Board members. This means that you have as many votes as the dollar amount you own, including the fractional amount, multiplied by the number of members to be elected.

DIVIDEND RIGHTS

Dividends paid by a fund, if any, with respect to each applicable class of shares will be calculated in the same manner, at the same time, on the same day, and will be in the same amount, except for differences resulting from differences in fee structures.

SHAREHOLDER LIABILITY

For funds organized as Massachusetts business trusts, under Massachusetts law, shareholders of a Massachusetts business trust may, under certain circumstances, be held personally liable as partners for its obligation. However, the Declaration of Trust that establishes a trust, a copy of which, together with all amendments thereto (the "Declaration of Trust"), is on file with the office of the Secretary of the Commonwealth of Massachusetts for each applicable fund, contains an express disclaimer of shareholder liability for acts or obligations of the Trust, or of any fund in the Trust. The Declaration of Trust provides that, if any shareholder (or former shareholder) of a fund in the Trust is charged or held to be personally liable for

Statement of Additional Information - Oct. 3, 2007 Page 41


any obligation or liability of the Trust, or of any fund in the Trust, solely by reason of being or having been a shareholder and not because of such shareholder's acts or omissions or for some other reason, the Trust (upon request of the shareholder) shall assume the defense against such charge and satisfy any judgment thereon, and the shareholder or former shareholder (or the heirs, executors, administrators or other legal representatives thereof, or in the case of a corporation or other entity, its corporate or other general successor) shall be entitled (but solely out of the assets of the fund of which such shareholder or former shareholder is or was the holder of shares) to be held harmless from and indemnified against all loss and expense arising from such liability.

The Declaration of Trust also provides that the Trust may maintain appropriate insurance (for example, fidelity bond and errors and omissions insurance) for the protection of the Trust, its shareholders, Trustees, officers, employees and agents covering possible tort and other liabilities. Thus, the risk of a shareholder incurring financial loss on account of shareholder liability is limited to circumstances in which both inadequate insurance existed and the Trust itself was unable to meet its obligations.

The Declaration of Trust further provides that obligations of the Trust are not binding upon the Trustees individually, but only upon the assets and property of the Trust, and that the Trustees will not be liable for any action or failure to act, errors of judgment, or mistakes of fact or law, but nothing in the Declaration of Trust or other agreement with a Trustee protects a Trustee against any liability to which he or she would otherwise be subject by reason of his or her willful bad faith, gross negligence, or reckless disregard of the duties involved in the conduct of his or her office. By becoming a shareholder of the fund, each shareholder shall be expressly held to have assented to and agreed to be bound by the provisions of the Declaration of Trust.

TABLE 8. FUND HISTORY TABLE FOR RIVERSOURCE FUNDS*

-----------------------------------------------------------------------------------------------------------------------------------

                                                DATE OF        DATE BEGAN       FORM OF         STATE OF     FISCAL
                  FUND                       ORGANIZATION      OPERATIONS     ORGANIZATION    ORGANIZATION  YEAR END  DIVERSIFIED**
-----------------------------------------------------------------------------------------------------------------------------------
 BOND SERIES, INC.(3)                     4/29/81, 6/13/86(1)                 Corporation         NV/MN       7/31
---------------------------------------------------------------------------
  Core Bond Fund                                                 6/19/03                                                   Yes
---------------------------------------------------------------------------
  Floating Rate Fund                                             2/16/06                                                   Yes
---------------------------------------------------------------------------
  Income Opportunities Fund                                      6/19/03                                                   Yes
---------------------------------------------------------------------------
  Inflation Protected Securities Fund                            3/4/04                                                    No
---------------------------------------------------------------------------
  Limited Duration Bond Fund                                     6/19/03                                                   Yes
---------------------------------------------------------------------------
 CALIFORNIA TAX-EXEMPT TRUST                    4/7/86                     Business Trust(2)       MA         8/31
---------------------------------------------------------------------------
  California Tax-Exempt Fund                                     8/18/86                                                   No
---------------------------------------------------------------------------
 DIMENSIONS SERIES, INC.                  2/20/68, 6/13/86(1)                 Corporation         NV/MN       7/31
---------------------------------------------------------------------------
  Disciplined Small and Mid Cap Equity                           5/18/06                                                   Yes
  Fund
---------------------------------------------------------------------------
  Disciplined Small Cap Value Fund                               2/16/06                                                   Yes
---------------------------------------------------------------------------
 DIVERSIFIED INCOME SERIES, INC.(3)       6/27/74, 6/31/86(1)                 Corporation         NV/MN       8/31
---------------------------------------------------------------------------
  Diversified Bond Fund(4)                                       10/3/74                                                   Yes
---------------------------------------------------------------------------
 EQUITY SERIES, INC.                      3/18/57, 6/13/86(1)                 Corporation         NV/MN       11/30
---------------------------------------------------------------------------
  Mid Cap Growth Fund(5)                                         6/4/57                                                    Yes
---------------------------------------------------------------------------
 GLOBAL SERIES, INC.                           10/28/88                       Corporation          MN         10/31
---------------------------------------------------------------------------
  Absolute Return Currency and Income                            6/15/06                                                   No
  Fund
---------------------------------------------------------------------------
  Emerging Markets Bond Fund                                     2/16/06                                                   No
---------------------------------------------------------------------------
  Emerging Markets Fund(6)                                      11/13/96                                                   Yes
---------------------------------------------------------------------------
  Global Bond Fund                                               3/20/89                                                   No
---------------------------------------------------------------------------
  Global Equity Fund(7),(6)                                      5/29/90                                                   Yes
---------------------------------------------------------------------------
  Global Technology Fund                                        11/13/96                                                   Yes
---------------------------------------------------------------------------
 GOVERNMENT INCOME SERIES, INC.                 3/12/85                       Corporation          MN         5/31
---------------------------------------------------------------------------
  Short Duration U.S. Government                                 8/19/85                                                   Yes
  Fund(4)
---------------------------------------------------------------------------
  U.S. Government Mortgage Fund                                  2/14/02                                                   Yes
---------------------------------------------------------------------------
 HIGH YIELD INCOME SERIES, INC.                 8/17/83                       Corporation          MN         5/31
---------------------------------------------------------------------------
  High Yield Bond Fund(4)                                        12/8/83                                                   Yes
---------------------------------------------------------------------------

Statement of Additional Information - Oct. 3, 2007 Page 42


-----------------------------------------------------------------------------------------------------------------------------------

                                                DATE OF        DATE BEGAN       FORM OF         STATE OF     FISCAL
                  FUND                       ORGANIZATION      OPERATIONS     ORGANIZATION    ORGANIZATION  YEAR END  DIVERSIFIED**
-----------------------------------------------------------------------------------------------------------------------------------
 INCOME SERIES, INC.                      2/10/45; 6/13/86(1)                 Corporation         NV/MN       5/31
---------------------------------------------------------------------------
  Income Builder Basic Income Fund                               2/16/06                                                   No
---------------------------------------------------------------------------
  Income Builder Enhanced Income Fund                            2/16/06                                                   No
---------------------------------------------------------------------------
  Income Builder Moderate Income Fund                            2/16/06                                                   No
---------------------------------------------------------------------------
 INTERNATIONAL MANAGERS SERIES,                 5/9/01                        Corporation          MN         10/31
 INC.(3)
---------------------------------------------------------------------------
  International Aggressive Growth Fund                           9/28/01                                                   Yes
---------------------------------------------------------------------------
  International Equity Fund(5)                                   10/3/02                                                   Yes
---------------------------------------------------------------------------
  International Select Value Fund                                9/28/01                                                   Yes
---------------------------------------------------------------------------
  International Small Cap Fund                                   10/3/02                                                   Yes
---------------------------------------------------------------------------
 INTERNATIONAL SERIES, INC.                     7/18/84                       Corporation          MN         10/31
---------------------------------------------------------------------------
  Disciplined International Equity Fund                          5/18/06                                                   Yes
---------------------------------------------------------------------------
  European Equity Fund(6)                                        6/26/00                                                   Yes
---------------------------------------------------------------------------
  International Opportunity Fund(6),(5)                         11/15/84                                                   Yes
---------------------------------------------------------------------------
 INVESTMENT SERIES, INC.                  1/18/40; 6/13/86(1)                 Corporation         NV/MN       9/30
---------------------------------------------------------------------------
  Balanced Fund(5)                                               4/16/40                                                   Yes
---------------------------------------------------------------------------
  Disciplined Large Cap Growth Fund                              5/17/07                                                   Yes
---------------------------------------------------------------------------
  Diversified Equity Income Fund                                10/15/90                                                   Yes
---------------------------------------------------------------------------
  Mid Cap Value Fund                                             2/14/02                                                   Yes
---------------------------------------------------------------------------
 LARGE CAP SERIES, INC.(3)                5/21/70, 6/13/86(1)                 Corporation         NV/MN       7/31
---------------------------------------------------------------------------
  Disciplined Equity Fund(5)                                     4/24/03                                                   Yes
---------------------------------------------------------------------------
  Growth Fund                                                    3/1/72                                                    Yes
---------------------------------------------------------------------------
  Large Cap Equity Fund                                          3/28/02                                                   Yes
---------------------------------------------------------------------------
  Large Cap Value Fund                                           6/27/02                                                   Yes
---------------------------------------------------------------------------
 MANAGERS SERIES, INC.(3)                       3/20/01                       Corporation          MN         5/31
---------------------------------------------------------------------------
  Aggressive Growth Fund                                         4/24/03                                                   Yes
---------------------------------------------------------------------------
  Fundamental Growth Fund(5)                                     4/24/03                                                   Yes
---------------------------------------------------------------------------
  Fundamental Value Fund                                         6/18/01                                                   Yes
---------------------------------------------------------------------------
  Select Value Fund                                              3/8/02                                                    Yes
---------------------------------------------------------------------------
  Small Cap Equity Fund(5)                                       3/8/02                                                    Yes
---------------------------------------------------------------------------
  Small Cap Value Fund                                           6/18/01                                                   Yes
---------------------------------------------------------------------------
  Value Fund                                                     6/18/01                                                   Yes
---------------------------------------------------------------------------
 MARKET ADVANTAGE SERIES, INC.                  8/25/89                       Corporation          MN         1/31
---------------------------------------------------------------------------
  Portfolio Builder Conservative Fund                            3/4/04                                                    No
---------------------------------------------------------------------------
  Portfolio Builder Moderate                                     3/4/04                                                    No
  Conservative Fund
---------------------------------------------------------------------------
  Portfolio Builder Moderate Fund                                3/4/04                                                    No
---------------------------------------------------------------------------
  Portfolio Builder Moderate Aggressive                          3/4/04                                                    No
  Fund
---------------------------------------------------------------------------
  Portfolio Builder Aggressive Fund                              3/4/04                                                    No
---------------------------------------------------------------------------
  Portfolio Builder Total Equity Fund                            3/4/04                                                    No
---------------------------------------------------------------------------
  S&P 500 Index Fund                                            10/25/99                                                   Yes
---------------------------------------------------------------------------
  Small Company Index Fund                                       8/19/96                                                   Yes
---------------------------------------------------------------------------
 MONEY MARKET SERIES, INC.                8/22/75; 6/13/86(1)                 Corporation         NV/MN       7/31
---------------------------------------------------------------------------
  Cash Management Fund                                           10/6/75                                                   Yes
---------------------------------------------------------------------------
 SECTOR SERIES, INC.                            3/25/88                       Corporation          MN         6/30
---------------------------------------------------------------------------
  Dividend Opportunity Fund(8)                                   8/1/88                                                    Yes
---------------------------------------------------------------------------
  Real Estate Fund                                               3/4/04                                                    Yes
---------------------------------------------------------------------------
 SELECTED SERIES, INC.                          10/5/84                       Corporation          MN         3/31
---------------------------------------------------------------------------
  Precious Metals and Mining Fund(9)                             4/22/86                                                   No
---------------------------------------------------------------------------

Statement of Additional Information - Oct. 3, 2007 Page 43


-----------------------------------------------------------------------------------------------------------------------------------

                                                DATE OF        DATE BEGAN       FORM OF         STATE OF     FISCAL
                  FUND                       ORGANIZATION      OPERATIONS     ORGANIZATION    ORGANIZATION  YEAR END  DIVERSIFIED**
-----------------------------------------------------------------------------------------------------------------------------------
 SERIES TRUST                                   1/27/06                    Business Trust(2)       MA         4/30
---------------------------------------------------------------------------
  120/20 Contrarian Equity Fund                                 10/18/07                                                   Yes
---------------------------------------------------------------------------
  130/30 U.S. Equity Fund                                       10/18/07                                                   Yes
---------------------------------------------------------------------------
  Retirement Plus 2010 Fund                                      5/18/06                                                   No
---------------------------------------------------------------------------
  Retirement Plus 2015 Fund                                      5/18/06                                                   No
---------------------------------------------------------------------------
  Retirement Plus 2020 Fund                                      5/18/06                                                   No
---------------------------------------------------------------------------
  Retirement Plus 2025 Fund                                      5/18/06                                                   No
---------------------------------------------------------------------------
  Retirement Plus 2030 Fund                                      5/18/06                                                   No
---------------------------------------------------------------------------
  Retirement Plus 2035 Fund                                      5/18/06                                                   No
---------------------------------------------------------------------------
  Retirement Plus 2040 Fund                                      5/18/06                                                   No
---------------------------------------------------------------------------
  Retirement Plus 2045 Fund                                      5/18/06                                                   No
---------------------------------------------------------------------------
 SHORT TERM INVESTMENTS SERIES, INC.      4/23/68, 6/13/86(1)                 Corporation         NV/MN       7/31
---------------------------------------------------------------------------
  Short-Term Cash Fund                                           9/26/06                                                   Yes
---------------------------------------------------------------------------
 SPECIAL TAX-EXEMPT SERIES TRUST                4/7/86                     Business Trust(2)       MA         8/31
---------------------------------------------------------------------------
  Massachusetts Tax-Exempt Fund                                  7/2/87                                                    No
---------------------------------------------------------------------------
  Michigan Tax-Exempt Fund                                       7/2/87                                                    No
---------------------------------------------------------------------------
  Minnesota Tax-Exempt Fund                                      8/18/86                                                   Yes
---------------------------------------------------------------------------
  New York Tax-Exempt Fund                                       8/18/86                                                   No
---------------------------------------------------------------------------
  Ohio Tax-Exempt Fund                                           7/2/87                                                    No
---------------------------------------------------------------------------
 STRATEGIC ALLOCATION SERIES, INC.(3)           10/9/84                       Corporation          MN         9/30
---------------------------------------------------------------------------
  Strategic Allocation Fund(5)                                   1/23/85                                                   Yes
---------------------------------------------------------------------------
  Strategic Income Allocation Fund                               5/17/07                                                   Yes
---------------------------------------------------------------------------
 STRATEGY SERIES, INC.                          1/24/84                       Corporation          MN         3/31
---------------------------------------------------------------------------
  Equity Value Fund                                              5/14/84                                                   Yes
---------------------------------------------------------------------------
  Small Cap Growth Fund                                          1/24/01                                                   Yes
---------------------------------------------------------------------------
  Small Cap Advantage Fund                                       5/4/99                                                    Yes
---------------------------------------------------------------------------
 TAX-EXEMPT INCOME SERIES, INC.(3)       12/21/78; 6/13/86(1)                 Corporation         NV/MN       11/30
---------------------------------------------------------------------------
  Tax-Exempt High Income Fund(5)                                 5/7/79                                                    Yes
---------------------------------------------------------------------------
 TAX-EXEMPT MONEY MARKET SERIES,          2/29/80, 6/13/86(1)                 Corporation         NV/MN       12/31
 INC.(3)
---------------------------------------------------------------------------
  Tax-Exempt Money Market Fund(5)                                8/5/80                                                    Yes
---------------------------------------------------------------------------
 TAX-EXEMPT SERIES, INC.                  9/30/76, 6/13/86(1)                 Corporation         NV/MN       11/30
---------------------------------------------------------------------------
  Intermediate Tax-Exempt Fund                                  11/13/96                                                   Yes
---------------------------------------------------------------------------
  Tax-Exempt Bond Fund                                          11/24/76                                                   Yes
---------------------------------------------------------------------------

* The RiverSource Variable Portfolio funds are not included in this table. Please see the Variable Portfolio funds' SAI for fund history.

** If a non-diversified fund is managed as if it were a diversified fund for a period of three years, its status under the 1940 Act will convert automatically from non-diversified to diversified. A diversified fund may convert to non-diversified status only with shareholder approval.

(1) Date merged into a Minnesota corporation incorporated on April 7, 1986.

(2) Under Massachusetts law, shareholders of a business trust may, under certain circumstances, be held personally liable as partners for its obligations. However, the risk of a shareholder incurring financial loss on account of shareholder liability is limited to circumstances in which the trust itself is unable to meet its obligations.

(3) Effective April 21, 2006, AXP Discovery Series, Inc. changed its name to RiverSource Bond Series, Inc.; AXP Fixed Income Series, Inc. changed its name to RiverSource Diversified Income Series, Inc.; AXP Growth Series, Inc. changed its name to RiverSource Large Cap Series, Inc.; AXP High Yield Tax-Exempt Series, Inc. changed its name to RiverSource Tax-Exempt Income Series, Inc.; AXP Managed Series, Inc. changed its name to RiverSource Strategic Allocation Series, Inc.; AXP Partners International Series, Inc. changed its name to RiverSource International Managers Series, Inc.; AXP Partners Series, Inc. changed its name to RiverSource Managers Series, Inc.; AXP Tax-Free Money Series, Inc. changed its name to RiverSource Tax-Exempt Money Market Series, Inc.; and for all other corporations and business trusts, AXP was replaced with RiverSource in the registrant name.

(4) Effective June 27, 2003, Bond Fund changed its name to Diversified Bond Fund, Federal Income Fund changed its name to Short Duration U.S. Government Fund and Extra Income Fund changed its name to High Yield Bond Fund.

(5) Effective Oct. 1, 2005, Equity Select Fund changed its name to Mid Cap Growth Fund, High Yield Tax-Exempt Fund changed its name to Tax-Exempt High Income Fund, Managed Allocation Fund changed its name to Strategic Allocation Fund, Mutual changed its name to Balanced Fund, Partners Growth Fund changed its name to Fundamental Growth Fund, Partners International Core Fund changed its name to International Equity Fund, Partners Small Cap Core Fund changed its name to Small Cap Equity Fund, Quantitative Large Cap

Statement of Additional Information - Oct. 3, 2007 Page 44


Equity Fund changed its name to Disciplined Equity Fund, Tax-Free Money Fund changed its name to Tax-Exempt Money Market Fund, and Threadneedle International Fund changed its name to International Opportunity Fund.

(6) Effective July 9, 2004, Emerging Markets Fund changed its name to Threadneedle Emerging Markets Fund, European Equity Fund changed its name to Threadneedle European Equity Fund, Global Equity Fund changed its name to Threadneedle Global Equity Fund, and International Fund changed its name to Threadneedle International Fund.

(7) Effective Oct. 20, 2003, Global Growth Fund changed its name to Global Equity Fund.

(8) Effective Feb. 18, 2004, Utilities Fund changed its name to Dividend Opportunity Fund.

(9) Effective Nov. 1, 2006, Precious Metals Fund changed its name to Precious Metals and Mining Fund.

Statement of Additional Information - Oct. 3, 2007 Page 45


BOARD MEMBERS AND OFFICERS

Shareholders elect a Board that oversees a fund's operations. The Board appoints officers who are responsible for day-to-day business decisions based on policies set by the Board.

The following is a list of each fund's Board members. Each member oversees 102 RiverSource funds. Board members serve until the next regular shareholders' meeting or until he or she reaches the mandatory retirement age established by the Board. Under the current Board policy, members may serve until the end of the meeting following their 75th birthday, or the fifteenth anniversary of the first Board meeting they attended as members of the Board, whichever occurs first. This policy does not apply to Ms. Jones who may retire after her 75th birthday.

TABLE 9. BOARD MEMBERS

INDEPENDENT BOARD MEMBERS

                                     POSITION
                                   HELD
                                    WITH FUNDS
                                   AND
                                     LENGTH OF   PRINCIPAL OCCUPATION          OTHER                 COMMITTEE
NAME, ADDRESS, AGE                    SERVICE    DURING PAST FIVE YEARS        DIRECTORSHIPS         MEMBERSHIPS
-------------------------------------------------------------------------------------------------------------------------
Kathleen Blatz                     Board member  Chief Justice, Minnesota      None                  Compliance,
901 S. Marquette Ave.              since 2006    Supreme Court, 1998-2005                            Investment Review,
Minneapolis, MN 55402                                                                                Joint Audit
Age 52
-------------------------------------------------------------------------------------------------------------------------
Arne H. Carlson                    Board member  Chair, RiverSource Funds,     None                  Board Governance,
901 S. Marquette Ave.              since 1999    1999-2006; former Governor                          Contracts,
Minneapolis, MN 55402                            of Minnesota                                        Executive,
Age 73                                                                                               Investment Review
-------------------------------------------------------------------------------------------------------------------------
Pamela G. Carlton                  Board member  President, Springboard-       None                  Investment Review,
901 S. Marquette Ave.              since 2007    Partners in Cross Cultural                          Joint Audit
Minneapolis, MN 55402                            Leadership (consulting
Age 52                                           company)
-------------------------------------------------------------------------------------------------------------------------
Patricia M. Flynn                  Board member  Trustee Professor of          None                  Board Governance,
901 S. Marquette Ave.              since 2004    Economics and Management,                           Compliance,
Minneapolis, MN 55402                            Bentley College; former                             Contracts,
Age 56                                           Dean, McCallum Graduate                             Investment Review
                                                 School of Business, Bentley
                                                 College
-------------------------------------------------------------------------------------------------------------------------
Anne P. Jones                      Board member  Attorney and Consultant       None                  Board Governance,
901 S. Marquette Ave.              since 1985                                                        Executive,
Minneapolis, MN 55402                                                                                Investment Review,
Age 72                                                                                               Joint Audit
-------------------------------------------------------------------------------------------------------------------------
Jeffrey Laikind, CFA               Board member  Former Managing Director,     American Progressive  Board Governance,
901 S. Marquette Ave.              since 2005    Shikiar Asset Management      Insurance             Investment Review,
Minneapolis, MN 55402                                                                                Joint Audit
Age 71
-------------------------------------------------------------------------------------------------------------------------
Stephen R. Lewis, Jr.              Board member  President Emeritus and        Valmont Industries,   Board Governance,
901 S. Marquette Ave.              since 2002    Professor of Economics,       Inc. (manufactures    Compliance,
Minneapolis, MN 55402              and Chair of  Carleton College              irrigation systems)   Contracts,
Age 68                             the Board                                                         Executive,
                                   since 2007                                                        Investment Review
-------------------------------------------------------------------------------------------------------------------------
Catherine James Paglia             Board member  Director, Enterprise Asset    Strategic             Compliance,
901 S. Marquette Ave.              since 2004    Management, Inc. (private     Distribution, Inc.    Contracts,
Minneapolis, MN 55402                            real estate and asset         (transportation,      Executive,
Age 55                                           management company)           distribution and      Investment Review
                                                                               logistics
                                                                               consultants)
-------------------------------------------------------------------------------------------------------------------------
Alison Taunton-Rigby               Board member  Chief Executive Officer,      Hybridon, Inc.        Contracts,
901 S. Marquette Ave.              since 2002    RiboNovix, Inc. since 2003    (biotechnology);      Executive,
Minneapolis, MN 55402                            (biotechnology); former       American Healthways,  Investment Review
Age 63                                           President, Forester Biotech   Inc. (health
                                                                               management programs)
-------------------------------------------------------------------------------------------------------------------------

Statement of Additional Information - Oct. 3, 2007 Page 46


BOARD MEMBER AFFILIATED WITH RIVERSOURCE INVESTMENTS*

                                   POSITION
                                   HELD
                                   WITH FUNDS
                                   AND
                                   LENGTH OF     PRINCIPAL OCCUPATION               OTHER                 COMMITTEE
NAME, ADDRESS, AGE                 SERVICE       DURING PAST FIVE YEARS             DIRECTORSHIPS         MEMBERSHIPS
------------------------------------------------------------------------------------------------------------------------------
William F. Truscott                Board member  President - U.S. Asset Management  None                  Investment Review
53600 Ameriprise                   since 2001,   and Chief Investment Officer,
Financial Center                   Vice          Ameriprise Financial, Inc. and
Minneapolis, MN 55474              President     President, Chairman of the Board
Age 47                             since 2002    and Chief Investment Officer,
                                                 RiverSource Investments, LLC
                                                 since 2005; President, Ameriprise
                                                 Certificate Company since 2006;
                                                 Senior Vice President - Chief
                                                 Investment Officer, Ameriprise
                                                 Financial, Inc. and Chairman of
                                                 the Board and Chief Investment
                                                 Officer, RiverSource Investments,
                                                 LLC, 2001-2005
------------------------------------------------------------------------------------------------------------------------------

* Interested person by reason of being an officer, director, security holder and/or employee of RiverSource Investments.

The Board has appointed officers who are responsible for day-to-day business decisions based on policies it has established. The officers serve at the pleasure of the Board. In addition to Mr. Truscott, who is Vice President, the fund's other officers are:

TABLE 10. FUND OFFICERS

                                  POSITION HELD
                                  WITH FUNDS
                                  AND LENGTH OF      PRINCIPAL OCCUPATION
NAME, ADDRESS, AGE                SERVICE            DURING PAST FIVE YEARS
--------------------------------------------------------------------------------------------------
Patrick T. Bannigan               President since    Senior Vice President - Asset Management,
172 Ameriprise Financial Center   2006               RiverSource Investments, LLC since 2006;
Minneapolis, MN 55474                                Managing Director and Global Head of Product,
Age 41                                               Morgan Stanley Investment Management, 2004-
                                                     2006; President, Touchstone Investments,
                                                     2002-2004; Director of Strategic Planning,
                                                     Evergreen Investments, 1995-2002
--------------------------------------------------------------------------------------------------
Michelle M. Keeley                Vice President     Executive Vice President - Equity and Fixed
172 Ameriprise Financial Center   since 2004         Income, Ameriprise Financial, Inc. and
Minneapolis, MN 55474                                RiverSource Investments, LLC since 2006; Vice
Age 43                                               President - Investments, Ameriprise
                                                     Certificate Company since 2003; Senior Vice
                                                     President - Fixed Income, Ameriprise
                                                     Financial, Inc., 2002-2006 and RiverSource
                                                     Investments, LLC, 2004-2006; Managing
                                                     Director, Zurich Global Assets, 2001-2002
--------------------------------------------------------------------------------------------------
Amy K. Johnson                    Vice President     Vice President - Asset Management and Trust
5228 Ameriprise Financial Center  since 2006         Company Services, RiverSource Investments,
Minneapolis, MN 55474                                LLC since 2006; Vice President - Operations
Age 41                                               and Compliance, RiverSource Investments, LLC,
                                                     2004-2006; Director of Product
                                                     Development - Mutual Funds, Ameriprise
                                                     Financial, Inc., 2001-2004
--------------------------------------------------------------------------------------------------
Jeffrey P. Fox                    Treasurer since    Vice President - Investment Accounting,
105 Ameriprise Financial Center   2002               Ameriprise Financial, Inc. since 2002; Vice
Minneapolis, MN 55474                                President - Finance, American Express
Age 51                                               Company, 2000-2002
--------------------------------------------------------------------------------------------------
Scott R. Plummer                  Vice President,    Vice President and Chief Counsel - Asset
5228 Ameriprise Financial Center  General Counsel    Management, Ameriprise Financial, Inc. since
Minneapolis, MN 55474             and Secretary      2005; Vice President, General Counsel and
Age 48                            since 2006         Secretary, Ameriprise Certificate Company
                                                     since 2005; Vice President - Asset Management
                                                     Compliance, Ameriprise Financial, Inc., 2004-
                                                     2005; Senior Vice President and Chief
                                                     Compliance Officer, U.S. Bancorp Asset
                                                     Management, 2002-2004; Second Vice President
                                                     and Assistant General Counsel, Hartford Life,
                                                     2001-2002
--------------------------------------------------------------------------------------------------

Statement of Additional Information - Oct. 3, 2007 Page 47


                                  POSITION HELD
                                  WITH FUNDS
                                  AND LENGTH OF      PRINCIPAL OCCUPATION
NAME, ADDRESS, AGE                SERVICE            DURING PAST FIVE YEARS
--------------------------------------------------------------------------------------------------
Jennifer D. Lammers               Chief Compliance   U.S. Asset Management Chief Compliance
172 Ameriprise Financial Center   Officer since      Officer, RiverSource Investments, LLC since
Minneapolis, MN 55474             2006               2006; Director - Mutual Funds, Voyageur Asset
Age 46                                               Management, 2003-2006; Director of Finance,
                                                     Voyageur Asset Management, 2000-2003
--------------------------------------------------------------------------------------------------
Neysa M. Alecu                    Money Laundering   Compliance Director and Anti-Money Laundering
2934 Ameriprise Financial Center  Prevention         Officer, Ameriprise Financial, Inc. since
Minneapolis, MN 55474             Officer since      2004; Manager Anti-Money Laundering,
Age 43                            2004               Ameriprise Financial, Inc., 2003-2004;
                                                     Compliance Director and Bank Secrecy Act
                                                     Officer, American Express Centurion Bank,
                                                     2000-2003
--------------------------------------------------------------------------------------------------

RESPONSIBILITIES OF BOARD WITH RESPECT TO FUND MANAGEMENT
The Board initially approves an Investment Management Services Agreement and other contracts with the investment manager and its affiliates, and other service providers. Once the contracts are approved, the Board monitors the level and quality of services including commitments of service providers to achieve expected levels of investment performance and shareholder services. In addition, the Board oversees that processes are in place to assure compliance with applicable rules, regulations and investment policies and addresses possible conflicts of interest. Annually, the Board evaluates the services received under the contracts by receiving reports covering investment performance, shareholder services, marketing, and the investment manager's profitability in order to determine whether to continue existing contracts or negotiate new contracts.

SEVERAL COMMITTEES FACILITATE ITS WORK
BOARD GOVERNANCE COMMITTEE -- Recommends to the Board the size, structure and composition of the Board and its committees; the compensation to be paid to members of the Board; and a process for evaluating the Board's performance. The committee also reviews candidates for Board membership including candidates recommended by shareholders. To be considered, recommendations must include a curriculum vitae and be mailed to the Chairman of the Board, RiverSource Funds, 901 Marquette Avenue South, Suite 2810, Minneapolis, MN 55402-3268. The committee also makes recommendations to the Board regarding responsibilities and duties of the Board, oversees proxy voting and supports the work of the Board Chair in relation to furthering the interests of the Funds and their shareholders on external matters.

COMPLIANCE COMMITTEE -- Supports the Funds' maintenance of a strong compliance program by providing a forum for independent Board members to consider compliance matters impacting the Funds or their key service providers; developing and implementing, in coordination with the Funds' Chief Compliance Officer (CCO), a process for the review and consideration of compliance reports that are provided to the Boards; and providing a designated forum for the Funds' CCO to meet with independent Board members on a regular basis to discuss compliance matters.

CONTRACTS COMMITTEE -- Reviews and oversees the contractual relationships with service providers. Receives and analyzes reports covering the level and quality of services provided under contracts with the fund and advises the Board regarding actions taken on these contracts during the annual review process.

EXECUTIVE COMMITTEE -- Acts for the Board between meetings of the Board.

INVESTMENT REVIEW COMMITTEE -- Reviews and oversees the management of the Funds' assets. Considers investment management policies and strategies; investment performance; risk management techniques; and securities trading practices and reports areas of concern to the Board.

JOINT AUDIT COMMITTEE -- Oversees the accounting and financial reporting processes of the Funds and internal controls over financial reporting. Oversees the quality and integrity of the Funds' financial statements and independent audits as well as the Funds' compliance with legal and regulatory requirements relating to the Funds' accounting and financial reporting, internal controls over financial reporting and independent audits. The committee also makes recommendations regarding the selection of the Funds' independent auditor and reviews and evaluates the qualifications, independence and performance of the auditor.

Statement of Additional Information - Oct. 3, 2007 Page 48


BOARD MEMBER HOLDINGS

This table shows the dollar range of equity securities beneficially owned on Dec. 31, 2006 of all funds overseen by the Board members.

TABLE 11. BOARD MEMBER HOLDINGS -- ALL FUNDS

Based on net asset values as of Dec. 31, 2006

                                                  AGGREGATE DOLLAR RANGE OF EQUITY SECURITIES
BOARD MEMBER*                                        OF ALL FUNDS OVERSEEN BY BOARD MEMBER
----------------------------------------------------------------------------------------------
Kathleen Blatz                                                Over $100,000
----------------------------------------------------------------------------------------------
Arne H. Carlson                                               Over $100,000
----------------------------------------------------------------------------------------------
Patricia M. Flynn                                             Over $100,000**
----------------------------------------------------------------------------------------------
Anne P. Jones                                                 Over $100,000
----------------------------------------------------------------------------------------------
Jeffrey Laikind                                               $50,001 - $100,000
----------------------------------------------------------------------------------------------
Stephen R. Lewis, Jr.                                         Over $100,000**
----------------------------------------------------------------------------------------------
Catherine James Paglia                                        Over $100,000**
----------------------------------------------------------------------------------------------
Alison Taunton-Rigby                                          Over $100,000
----------------------------------------------------------------------------------------------
William F. Truscott                                           Over $100,000
----------------------------------------------------------------------------------------------

* Ms. Carlton was not a member of the Board as of Dec. 31, 2006, and therefore is not included in the table.

** Includes deferred compensation invested in share equivalents.

COMPENSATION OF BOARD MEMBERS

TOTAL COMPENSATION. The following table shows the total compensation paid to independent Board members from all the RiverSource funds in the period ended July 31, 2007.

TABLE 12. BOARD MEMBER COMPENSATION -- ALL FUNDS

                                                                                   TOTAL CASH
                                         PENSION OR RETIREMENT                 COMPENSATION FROM
                                            BENEFITS PAID TO                   RIVERSOURCE FUNDS
BOARD MEMBER(A)                               BOARD MEMBER                    PAID TO BOARD MEMBER
--------------------------------------------------------------------------------------------------------
Kathleen Blatz                                   N/A                                $147,817
--------------------------------------------------------------------------------------------------------
Arne H. Carlson(b)                               $--(b)                              233,333
--------------------------------------------------------------------------------------------------------
Pamela Carlton                                   N/A                                  16,667
--------------------------------------------------------------------------------------------------------
Patricia M. Flynn                                N/A                                 141,367(c)
--------------------------------------------------------------------------------------------------------
Anne P. Jones                                    N/A                                 148,217
--------------------------------------------------------------------------------------------------------
Jeffrey Laikind                                  N/A                                 148,217
--------------------------------------------------------------------------------------------------------
Stephen R. Lewis, Jr.                            N/A                                 282,183(c)
--------------------------------------------------------------------------------------------------------
Catherine James Paglia                           N/A                                 141,367(c)
--------------------------------------------------------------------------------------------------------
Vikki L. Pryor(d)                                N/A                                  70,317
--------------------------------------------------------------------------------------------------------
Alan K. Simpson(e)                               N/A                                  20,400
--------------------------------------------------------------------------------------------------------
Alison Taunton-Rigby                             N/A                                 133,867
--------------------------------------------------------------------------------------------------------

(a) Board member compensation is a combination of a base fee and meeting fees, with the exception of the Chair of the Boards, who receives a base annual compensation. Payment of compensation is facilitated by a company providing limited administrative services to the funds and to the Boards.

(b) Mr. Carlson served as Chair of the Boards through Dec. 31, 2006. The amount for Mr. Carlson includes base annual compensation for serving as Chair of the Boards through Dec. 31, 2006. Additionally, during the time he served as Chair of the Boards, from March 1, 1999 to Dec. 31, 2006, Mr. Carlson was provided health and certain other benefits, including participation in a Qualified Retirement Plan (QRP) and a Supplemental Retirement Plan (SRP). Under the QRP, subject to limits imposed by applicable law (the Dollar Limits), Mr. Carlson earned annually 15% of the non-deferred portion of his base annual compensation. The QRP payments were fully funded by the funds in the year that they were earned by Mr. Carlson. The above table reflects $13,750 paid pursuant to the QRP during the fiscal period. To the extent the 15% amount exceeded the Dollar Limits in any year, the excess was recorded for the benefit of Mr. Carlson under the SRP. These SRP amounts were accrued as liabilities of the funds. Table 31B shows the amount of the SRP accrual in each year for the benefit of Mr. Carlson. Total base annual compensation from the RiverSource funds paid to Mr. Carlson for the fiscal period ended Jan. 31, 2007 (not including retirement benefits) was $219,583.

(c) Ms. Flynn, Mr. Lewis and Ms. Paglia elected to defer a portion of the total cash compensation payable during the period in the amount of $61,517, $81,775 and $141,367, respectively. Amount deferred by fund is set forth in Table 32. Additional information regarding the deferred compensation plan is described below.

Statement of Additional Information - Oct. 3, 2007 Page 49


(d) Ms. Pryor ceased service as a member of the Boards, effective Jan. 11, 2007. (She had commenced serving on the Boards on Feb. 15, 2006.)

(e) Mr. Simpson retired as a member of the Boards, effective Sept. 14, 2006.

TABLE 13. SUPPLEMENTAL BOARD MEMBER RETIREMENT BENEFITS -- ALL FUNDS

                                       1999      2000   2001     2002   2003     2004      2005      2006
------------------------------------------------------------------------------------------------------------
Arne H. Carlson*                       $13,200    --    $3,750    --    $4,950   $18,000   $17,250   $15,750

* Retirement benefit amounts in excess of the Dollar Limits were accrued annually for the benefit of Mr. Carlson in a SRP. This table shows the amount of such accruals. Because of his retirement as Chair, the SRP amounts are now payable to Mr. Carlson. In this regard, it is expected that the total accrued retirement benefits under the SRP, equal to approximately $82,000 (which includes earnings and interest on the contributed amounts set forth in the table), will be paid to Mr. Carlson in January 2008. SRP payments are funded by the funds. As of January 2007, neither the Chair nor any Board member earns retirement benefits.

The independent Board members determine the amount of compensation that they receive, including the amount paid to the Chair of the Board. In determining compensation for the independent Board members, the independent Board members take into account a variety of factors including, among other things, their collective significant work experience (e.g., in business and finance, government or academia). The independent Board members also recognize that these individuals' advice and counsel are in demand by other organizations, that these individuals may reject other opportunities because the time demands of their duties as independent Board members, and that they undertake significant legal responsibilities. The independent Board members also consider the compensation paid to independent board members of other mutual fund complexes of comparable size. In determining the compensation paid to the Chair, the independent Board members take into account, among other things, the Chair's significant additional responsibilities (e.g., setting the agenda for Board meetings, communicating or meeting regularly with the Funds' Chief Compliance Officer, Counsel to the independent Board members, and the Funds' service providers) which result in a significantly greater time commitment required of the Board Chair. The Chair's compensation, therefore, has generally been set at a level between 2.5 and 3 times the level of compensation paid to other independent Board members.

Effective Jan. 1, 2007, independent Board members will be paid an annual retainer of $80,000. Committee and sub-committee Chairs will each receive an additional annual retainer of $5,000. In addition, independent Board members will be paid the following fees for attending Board and committee meetings:
$5,000 per day of in-person Board meetings and $2,500 per day of in-person committee or sub-committee meetings (if such meetings are not held on the same day as a Board meeting). Independent Board members are not paid for special telephonic meetings. In 2007, the Board's Chair will receive total annual cash compensation of $385,000, approximately 2.7 times the anticipated average annual compensation expected to be earned by an independent Board member in 2007.

The independent Board members may elect to defer payment of up to 100% of the compensation they receive in accordance with a Deferred Compensation Plan (the Deferred Plan). Under the Deferred Plan, a Board member may elect to have his or her deferred compensation treated as if they had been invested in shares of one or more RiverSource funds and the amount paid to the Board member under the Deferred Plan will be determined based on the performance of such investments. Distributions may be taken in a lump sum or over a period of years. The Deferred Plan will remain unfunded for federal income tax purposes under the Internal Revenue Code of 1986, as amended. It is anticipated that deferral of Board member compensation in accordance with the Deferred Plan will have, at most, a negligible impact on Fund assets and liabilities.

INFORMATION REGARDING PENDING AND SETTLED LEGAL PROCEEDINGS

In June 2004, an action captioned John E. Gallus et al. v. American Express Financial Corp. and American Express Financial Advisors Inc., was filed in the United States District Court for the District of Arizona. The plaintiffs allege that they are investors in several American Express Company mutual funds and they purport to bring the action derivatively on behalf of those funds under the Investment Company Act of 1940. The plaintiffs allege that fees allegedly paid to the defendants by the funds for investment advisory and administrative services are excessive. The plaintiffs seek remedies including restitution and rescission of investment advisory and distribution agreements. The plaintiffs voluntarily agreed to transfer this case to the United States District Court for the District of Minnesota. In response to defendant's motion to dismiss the complaint, the Court dismissed one of plaintiffs' four claims and granted plaintiffs limited discovery. Defendants moved for summary judgment in April 2007. Summary judgment was granted in the defendants' favor on July 9, 2007. The plaintiffs may file a notice of appeal with the Eighth Circuit Court of Appeals within 30 days from the date of judgment.

Statement of Additional Information - Oct. 3, 2007 Page 50


In December 2005, without admitting or denying the allegations, American Express Financial Corporation (AEFC, which is now known as Ameriprise Financial, Inc. (Ameriprise Financial)), the parent company of RiverSource Investments, LLC (RiverSource Investments), entered into settlement agreements with the Securities and Exchange Commission (SEC) and Minnesota Department of Commerce (MDOC) related to market timing activities. In connection with these matters, the SEC and MDOC issued orders (the Orders) alleging that AEFC violated certain provisions of the federal and Minnesota securities laws by failing to adequately disclose market timing activities by allowing certain identified market timers to continue to market time contrary to disclosures in mutual fund and variable annuity product prospectuses. The Orders also alleged that AEFC failed to implement procedures to detect and prevent market timing in 401(k) plans for employees of AEFC and related companies and failed to adequately disclose that there were no such procedures. Pursuant to the MDOC Order, the MDOC also alleged that AEFC allowed inappropriate market timing to occur by failing to have written policies and procedures and failing to properly supervise its employees.

As a result of the Orders, AEFC was censured and ordered to cease and desist from committing or causing any violations of certain provisions of the Investment Advisers Act of 1940, the Investment Company Act of 1940, and various Minnesota laws. Pursuant to the terms of the Orders, AEFC agreed to pay disgorgement of $10 million and civil money penalties of $7 million. AEFC also agreed to make presentations at least annually to its board of directors and the relevant mutual funds' board that include an overview of policies and procedures to prevent market timing, material changes to these policies and procedures and whether disclosures related to market timing are consistent with the SEC order and federal securities laws. AEFC also agreed to retain an independent distribution consultant to assist in developing a plan for distribution of all disgorgement and civil penalties ordered by the SEC in accordance with various undertakings detailed at http://www.sec.gov/litigation/admin/ia-2451.pdf. In addition, AEFC agreed to complete and submit to the MDOC a compliance review of its procedures regarding market timing within one year of the MDOC Order, including a summary of actions taken to ensure compliance with applicable laws and regulations and certification by a senior officer regarding compliance and supervisory procedures.

Ameriprise Financial and its affiliates have cooperated with the SEC and the MDOC in these legal proceedings, and have made regular reports to the RiverSource Funds' Boards of Directors/Trustees.

Ameriprise Financial and certain of its affiliates have historically been involved in a number of legal, arbitration and regulatory proceedings, including routine litigation, class actions, and governmental actions, concerning matters arising in connection with the conduct of their business activities. Ameriprise Financial believes that the Funds are not currently the subject of, and that neither Ameriprise Financial nor any of its affiliates are the subject of, any pending legal, arbitration or regulatory proceedings that are likely to have a material adverse effect on the Funds or the ability of Ameriprise Financial or its affiliates to perform under their contracts with the Funds. Ameriprise Financial is required to make 10-Q, 10-K and, as necessary, 8-K filings with the Securities and Exchange Commission on legal and regulatory matters that relate to Ameriprise Financial and its affiliates. Copies of these filings may be obtained by accessing the SEC website at www.sec.gov.

There can be no assurance that these matters, or the adverse publicity associated with them, will not result in increased fund redemptions, reduced sale of fund shares or other adverse consequences to the Funds. Further, although we believe proceedings are not likely to have a material adverse effect on the Funds or the ability of Ameriprise Financial or its affiliates to perform under their contracts with the Funds, these proceedings are subject to uncertainties and, as such, we are unable to estimate the possible loss or range of loss that may result. An adverse outcome in one or more of these proceedings could result in adverse judgments, settlements, fines, penalties or other relief that could have a material adverse effect on the consolidated financial condition or results of operations of Ameriprise Financial.

INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

The financial statements contained in a fund's Annual Report will be audited by the independent registered public accounting firm, Ernst & Young LLP, 220 South 6th Street, Suite 1400, Minneapolis, MN 55402. The independent registered public accounting firm also provides other accounting and tax-related services as requested by the fund.

Statement of Additional Information - Oct. 3, 2007 Page 51


APPENDIX A

DESCRIPTION OF RATINGS

STANDARD & POOR'S LONG-TERM DEBT RATINGS
A Standard & Poor's corporate or municipal debt rating is a current assessment of the creditworthiness of an obligor with respect to a specific obligation. This assessment may take into consideration obligors such as guarantors, insurers, or lessees.

The debt rating is not a recommendation to purchase, sell, or hold a security, inasmuch as it does not comment as to market price or suitability for a particular investor.

The ratings are based on current information furnished by the issuer or obtained by S&P from other sources it considers reliable. S&P does not perform an audit in connection with any rating and may, on occasion, rely on unaudited financial information. The ratings may be changed, suspended, or withdrawn as a result of changes in, or unavailability of such information or based on other circumstances.

The ratings are based, in varying degrees, on the following considerations:

- Likelihood of default capacity and willingness of the obligor as to the timely payment of interest and repayment of principal in accordance with the terms of the obligation.

- Nature of and provisions of the obligation.

- Protection afforded by, and relative position of, the obligation in the event of bankruptcy, reorganization, or other arrangement under the laws of bankruptcy and other laws affecting creditors' rights.

INVESTMENT GRADE
Debt rated AAA has the highest rating assigned by Standard & Poor's. Capacity to pay interest and repay principal is extremely strong.

Debt rated AA has a very strong capacity to pay interest and repay principal and differs from the highest rated issues only in a small degree.

Debt rated A has a strong capacity to pay interest and repay principal, although it is somewhat more susceptible to the adverse effects of changes in circumstances and economic conditions than debt in higher-rated categories.

Debt rated BBB is regarded as having an adequate capacity to pay interest and repay principal. Whereas it normally exhibits adequate protection parameters, adverse economic conditions or changing circumstances are more likely to lead to a weakened capacity to pay interest and repay principal for debt in this category than in higher-rated categories.

SPECULATIVE GRADE
Debt rated BB, B, CCC, CC, and C is regarded as having predominantly speculative characteristics with respect to capacity to pay interest and repay principal. BB indicates the least degree of speculation and C the highest. While such debt will likely have some quality and protective characteristics, these are outweighed by large uncertainties or major exposures to adverse conditions.

Debt rated BB has less near-term vulnerability to default than other speculative issues. However, it faces major ongoing uncertainties or exposure to adverse business, financial, or economic conditions that could lead to inadequate capacity to meet timely interest and principal payments. The BB rating category also is used for debt subordinated to senior debt that is assigned an actual or implied BBB- rating.

Debt rated B has a greater vulnerability to default but currently has the capacity to meet interest payments and principal repayments. Adverse business, financial, or economic conditions will likely impair capacity or willingness to pay interest and repay principal. The B rating category also is used for debt subordinated to senior debt that is assigned an actual or implied BB or BB- rating.

Debt rated CCC has a currently identifiable vulnerability to default and is dependent upon favorable business, financial, and economic conditions to meet timely payment of interest and repayment of principal. In the event of adverse business, financial, or economic conditions, it is not likely to have the capacity to pay interest and repay principal. The CCC rating category also is used for debt subordinated to senior debt that is assigned an actual or implied B or B- rating.

Debt rated CC typically is applied to debt subordinated to senior debt that is assigned an actual or implied CCC rating.

Statement of Additional Information - Oct. 3, 2007 Page A-1


Debt rated C typically is applied to debt subordinated to senior debt that is assigned an actual or implied CCC rating. The C rating may be used to cover a situation where a bankruptcy petition has been filed, but debt service payments are continued.

The rating CI is reserved for income bonds on which no interest is being paid.

Debt rated D is in payment default. The D rating category is used when interest payments or principal payments are not made on the date due, even if the applicable grace period has not expired, unless S&P believes that such payments will be made during such grace period. The D rating also will be used upon the filing of a bankruptcy petition if debt service payments are jeopardized.

MOODY'S LONG-TERM DEBT RATINGS
Aaa - Bonds that are rated Aaa are judged to be of the best quality. They carry the smallest degree of investment risk. Interest payments are protected by a large or by an exceptionally stable margin and principal is secure. While the various protective elements are likely to change, such changes as can be visualized are most unlikely to impair the fundamentally strong position of such issues.

Aa - Bonds that are rated Aa are judged to be of high quality by all standards. Together with the Aaa group they comprise what are generally known as high grade bonds. They are rated lower than the best bonds because margins of protection may not be as large as in Aaa securities or fluctuation of protective elements may be of greater amplitude or there may be other elements present that make the long-term risk appear somewhat larger than in Aaa securities.

A - Bonds that are rated A possess many favorable investment attributes and are to be considered as upper-medium grade obligations. Factors giving security to principal and interest are considered adequate, but elements may be present that suggest a susceptibility to impairment some time in the future.

Baa - Bonds that are rated Baa are considered as medium-grade obligations (i.e., they are neither highly protected nor poorly secured). Interest payments and principal security appear adequate for the present but certain protective elements may be lacking or may be characteristically unreliable over any great length of time. Such bonds lack outstanding investment characteristics and in fact have speculative characteristics as well.

Ba - Bonds that are rated Ba are judged to have speculative elements -- their future cannot be considered as well-assured. Often the protection of interest and principal payments may be very moderate, and thereby not well safeguarded during both good and bad times over the future. Uncertainty of position characterizes bonds in this class.

B - Bonds that are rated B generally lack characteristics of a desirable investment. Assurance of interest and principal payments or maintenance of other terms of the contract over any long period of time may be small.

Caa - Bonds that are rated Caa are of poor standing. Such issues may be in default or there may be present elements of danger with respect to principal or interest.

Ca - Bonds that are rated Ca represent obligations that are speculative in a high degree. Such issues are often in default or have other marked shortcomings.

C - Bonds that are rated C are the lowest rated class of bonds, and issues so rated can be regarded as having extremely poor prospects of ever attaining any real investment standing.

FITCH'S LONG-TERM DEBT RATINGS
Fitch's bond ratings provide a guide to investors in determining the credit risk associated with a particular security. The ratings represent Fitch's assessment of the issuer's ability to meet the obligations of a specific debt issue in a timely manner.

The rating takes into consideration special features of the issue, its relationship to other obligations of the issuer, the current and prospective financial condition and operating performance of the issuer and any guarantor, as well as the economic and political environment that might affect the issuer's future financial strength and credit quality.

Fitch ratings do not reflect any credit enhancement that may be provided by insurance policies or financial guaranties unless otherwise indicated.

Fitch ratings are not recommendations to buy, sell or hold any security. Ratings do not comment on the adequacy of market price, the suitability of any security for a particular investor, or the tax-exempt nature of taxability of payments made in respect of any security.

Fitch ratings are based on information obtained from issuers, other obligors, underwriters, their experts, and other sources Fitch believes to be reliable. Fitch does not audit or verify the truth or accuracy of such information. Ratings may be changed, suspended, or withdrawn as a result of changes in, or the unavailability of, information or for other reasons.

Statement of Additional Information - Oct. 3, 2007 Page A-2


INVESTMENT GRADE
AAA: Bonds considered to be investment grade and of the highest credit quality. The obligor has an exceptionally strong ability to pay interest and repay principal, which is unlikely to be affected by reasonably foreseeable events.

AA: Bonds considered to be investment grade and of very high credit quality. The obligor's ability to pay interest and repay principal is very strong, although not quite as strong as bonds rated AAA. Because bonds rated in the AAA and AA categories are not significantly vulnerable to foreseeable future developments, short-term debt of these issuers is generally rated F-1+.

A: Bonds considered to be investment grade and of high credit quality. The obligor's ability to pay interest and repay principal is considered to be strong, but may be more vulnerable to adverse changes in economic conditions and circumstances than bonds with higher ratings.

BBB: Bonds considered to be investment grade and of satisfactory credit quality. The obligor's ability to pay interest and repay principal is considered to be adequate. Adverse changes in economic conditions and circumstances, however, are more likely to have adverse impact on these bonds and, therefore, impair timely payment. The likelihood that the ratings of these bonds will fall below investment grade is higher than for bonds with higher ratings.

SPECULATIVE GRADE
BB: Bonds are considered speculative. The obligor's ability to pay interest and repay principal may be affected over time by adverse economic changes. However, business and financial alternatives can be identified, which could assist the obligor in satisfying its debt service requirements.

B: Bonds are considered highly speculative. While bonds in this class are currently meeting debt service requirements, the probability of continued timely payment of principal and interest reflects the obligor's limited margin of safety and the need for reasonable business and economic activity throughout the life of the issue.

CCC: Bonds have certain identifiable characteristics that, if not remedied, may lead to default. The ability to meet obligations requires an advantageous business and economic environment.

CC: Bonds are minimally protected. Default in payment of interest and/or principal seems probable over time.

C: Bonds are in imminent default in payment of interest or principal.

DDD, DD, and D: Bonds are in default on interest and/or principal payments. Such bonds are extremely speculative and should be valued on the basis of their ultimate recovery value in liquidation or reorganization of the obligor. DDD represents the highest potential for recovery on these bonds, and D represents the lowest potential for recovery.

SHORT-TERM RATINGS

STANDARD & POOR'S COMMERCIAL PAPER RATINGS
A Standard & Poor's commercial paper rating is a current assessment of the likelihood of timely payment of debt considered short-term in the relevant market.

Ratings are graded into several categories, ranging from A-1 for the highest quality obligations to D for the lowest. These categories are as follows:

A-1 This highest category indicates that the degree of safety regarding timely payment is strong. Those issues determined to possess extremely strong safety characteristics are denoted with a plus sign (+) designation.

A-2 Capacity for timely payment on issues with this designation is satisfactory.
However, the relative degree of safety is not as high as for issues designated A-1.

A-3 Issues carrying this designation have adequate capacity for timely payment.
They are, however, more vulnerable to the adverse effects of changes in circumstances than obligations carrying the higher designations.

B Issues are regarded as having only speculative capacity for timely payment.

C This rating is assigned to short-term debt obligations with doubtful capacity for payment.

D Debt rated D is in payment default. The D rating category is used when interest payments or principal payments are not made on the date due, even if the applicable grace period has not expired, unless S&P believes that such payments will be made during such grace period.

Statement of Additional Information - Oct. 3, 2007 Page A-3


STANDARD & POOR'S MUNI BOND AND NOTE RATINGS
An S&P municipal bond or note rating reflects the liquidity factors and market- access risks unique to these instruments. Notes maturing in three years or less will likely receive a note rating. Notes maturing beyond three years will most likely receive a long-term debt rating.

Note rating symbols and definitions are as follows:

SP-1 Strong capacity to pay principal and interest. Issues determined to possess very strong characteristics are given a plus (+) designation.

SP-2 Satisfactory capacity to pay principal and interest, with some vulnerability to adverse financial and economic changes over the term of the notes.

SP-3 Speculative capacity to pay principal and interest.

Municipal bond rating symbols and definitions are as follows:

Standard & Poor's rating SP-1 indicates very strong or strong capacity to pay principal and interest. Those issues determined to possess overwhelming safety characteristics will be given a plus (+) designation.

Standard & Poor's rating SP-2 indicates satisfactory capacity to pay principal and interest.

Standard & Poor's rating SP-3 indicates speculative capacity to pay principal and interest.

MOODY'S SHORT-TERM RATINGS
Moody's short-term debt ratings are opinions of the ability of issuers to repay punctually senior debt obligations. These obligations have an original maturity not exceeding one year, unless explicitly noted.

Moody's employs the following three designations, all judged to be investment grade, to indicate the relative repayment ability of rated issuers:

Issuers rated Prime-1 (or supporting institutions) have a superior ability for repayment of senior short-term debt obligations. Prime-1 repayment ability will often be evidenced by many of the following characteristics: (i) leading market positions in well-established industries, (ii) high rates of return on funds employed, (iii) conservative capitalization structure with moderate reliance on debt and ample asset protection, (iv) broad margins in earnings coverage of fixed financial charges and high internal cash generation, and (v) well established access to a range of financial markets and assured sources of alternate liquidity.

Issuers rated Prime-2 (or supporting institutions) have a strong ability for repayment of senior short-term debt obligations. This will normally be evidenced by many of the characteristics cited above, but to a lesser degree. Earnings trends and coverage ratios, while sound, may be more subject to variation. Capitalization characteristics, while still appropriate, may be more affected by external conditions. Ample alternate liquidity is maintained.

Issuers rated Prime-3 (or supporting institutions) have an acceptable ability for repayment of senior short-term obligations. The effect of industry characteristics and market compositions may be more pronounced. Variability in earnings and profitability may result in changes in the level of debt protection measurements and may require relatively high financial leverage. Adequate alternate liquidity is maintained.

Issuers rated Not Prime do not fall within any of the Prime rating categories.

MOODY'S SHORT-TERM MUNI BONDS AND NOTES
Short-term municipal bonds and notes are rated by Moody's. The ratings reflect the liquidity concerns and market access risks unique to notes.

Moody's MIG 1/VMIG 1 indicates the best quality. There is present strong protection by established cash flows, superior liquidity support or demonstrated broad-based access to the market for refinancing.

Moody's MIG 2/VMIG 2 indicates high quality. Margins of protection are ample although not so large as in the preceding group.

Moody's MIG 3/VMIG 3 indicates favorable quality. All security elements are accounted for but there is lacking the undeniable strength of the preceding grades. Liquidity and cash flow protection may be narrow and market access for refinancing is likely to be less well established.

Moody's MIG 4/VMIG 4 indicates adequate quality. Protection commonly regarded as required of an investment security is present and although not distinctly or predominantly speculative, there is specific risk.

Statement of Additional Information - Oct. 3, 2007 Page A-4


FITCH'S SHORT-TERM RATINGS
Fitch's short-term ratings apply to debt obligations that are payable on demand or have original maturities of generally up to three years, including commercial paper, certificates of deposit, medium-term notes, and municipal and investment notes. The short-term rating places greater emphasis than a long-term rating on the existence of liquidity necessary to meet the issuer's obligations in a timely manner.

Fitch short-term ratings are as follows:

F-1+: Exceptionally Strong Credit Quality. Issues assigned this rating are regarded as having the strongest degree of assurance for timely payment.

F-1: Very Strong Credit Quality. Issues assigned this rating reflect an assurance of timely payment only slightly less in degree than issues rated F-1+.

F-2: Good Credit Quality. Issues assigned this rating have a satisfactory degree of assurance for timely payment, but the margin of safety is not as great as for issues assigned F-1+ and F-1 ratings.

F-3: Fair Credit Quality. Issues assigned this rating have characteristics suggesting that the degree of assurance for timely payment is adequate, however, near-term adverse changes could cause these securities to be rated below investment grade.

F-S: Weak Credit Quality. Issues assigned this rating have characteristics suggesting a minimal degree of assurance for timely payment and are vulnerable to near-term adverse changes in financial and economic conditions.

D: Default. Issues assigned this rating are in actual or imminent payment default.

S-6500-17A (10/07)

Statement of Additional Information - Oct. 3, 2007 Page A-5


PART C. OTHER INFORMATION

Item 23. Exhibits

(a)(1) Agreement and Declaration of Trust effective January 27, 2006, filed electronically on or about Feb. 8, 2006 as Exhibit (a) to Registrant's Registration Statement is incorporated by reference.

(a)(2) Amendment No. 1 to the Agreement and Declaration of Trust is filed electronically herewith as Exhibit (a)(2) to Registrant's Post-Effective Amendment No. 5 to Registration Statement No. . 333-131683.

(b) By-laws filed electronically on or about April 21, 2006 as Exhibit (b) to Registrant's Pre-Effective Amendment No. 1 to Registration Statement No. 333-131683 is incorporated by reference.

(c) Stock Certificate: Not applicable.

(d)(1) Investment Management Services Agreement, dated May 1, 2006, between Registrant and RiverSource Investments, LLC filed electronically on or about Sept. 19, 2006 as Exhibit (d) to Registrant's Post-Effective Amendment No. 1 to Registration Statement No. 333-131683 is incorporated by reference.

(d)(2) Investment Management Services Agreement between Registrant and RiverSource Investments, LLC for the RiverSource 120/20 Contrarian Equity Fund and RiverSource 130/30 U.S. Equity Fund to be filed by Amendment.

(e)(1) Distribution Agreement, effective Oct. 1, 2005, amended and restated as of May 1, 2007, between Registrant and Ameriprise Financial Services, Inc. filed electronically on or about May 29, 2007 as Exhibit (e)(1) to RiverSource Selected Series, Inc. Post-Effective Amendment No. 47 to Registration Statement No. 2-93745 is incorporated by reference.

(e)(2) Distribution Agreement, effective Aug. 1, 2006, amended and restated as of May 1, 2007, between Registrant and RiverSource Distributors, Inc. filed electronically on or about May 29, 2007 as Exhibit (e)(2) to RiverSource Selected Series, Inc. Post-Effective Amendment No. 47 to Registration Statement No. 2-93745 is incorporated by reference.

(e)(3) Form of Service Agreement for RiverSource Distributors, Inc. and RiverSource Service Corporation filed electronically on or about Aug. 27, 2007 as Exhibit (e)(3) to RiverSource Sector Series, Inc. Post-Effective Amendment No. 39 to Registration Statement No. 33-20872 is incorporated by reference.

(e)(4) Form of RiverSource Funds Dealer Agreement filed electronically on or about Aug. 27, 2007 as Exhibit (e)(4) to RiverSource Sector Series, Inc. Post-Effective Amendment No. 39 to Registration Statement No. 33-20872 is incorporated by reference.

(e)(5) Distribution Agreement between Registrant and Ameriprise Financial Services, Inc. for the RiverSource 120/20 Contrarian Equity Fund and RiverSource 130/30 U.S. Equity Fund to be filed by Amendment.

(e)(6) Distribution Agreement between Registrant and RiverSource Distributors, Inc. for the RiverSource 120/20 Contrarian Equity Fund and RiverSource 130/30 U.S. Equity Fund to be filed by Amendment.

(f) Bonus or Profit Sharing Contracts: Not Applicable.


(g)(1) Custodian Agreement, dated Oct. 1, 2005, amended and restated as of May 1, 2007, between Registrant and Ameriprise Trust Company filed electronically on or about May 29, 2007 as Exhibit (g)(1) to RiverSource Selected Series, Inc. Post-Effective Amendment No. 47 to Registration Statement No. 2-93745 is incorporated by reference.

(g)(2) Custodian Agreement for the RiverSource 120/20 Contrarian Equity Fund and RiverSource 130/30 U.S. Equity Fund to be filed by Amendment.

(h)(1) Administrative Services Agreement, dated Oct. 1, 2006, amended and restated as of May 1, 2007, between Registrant and Ameriprise Financial, Inc. filed electronically on or about June 28, 2007 as Exhibit (h)(1) to Registrant's. Post-Effective Amendment No. 3 to Registration Statement No. 333-131683 is incorporated by reference.

(h)(2) Transfer Agency Agreement, dated Oct. 1, 2005, amended and restated as of May 1, 2007, between Registrant and RiverSource Service Corporation filed electronically on or about May 29, 2007 as Exhibit (h)(2) to RiverSource Selected Series, Inc. Post-Effective Amendment No. 47 to Registration Statement No. 2-93745 is incorporated by reference.

(h)(3) Master Plan Administration Services Agreement, dated Dec. 1, 2006, amended as of May 1, 2007, between Registrant and RiverSource Service Corporation filed electronically on or about May 29, 2007 as Exhibit
(h)(3) to RiverSource Selected Series, Inc. Post-Effective Amendment No. 47 to Registration Statement No. 2-93745 is incorporated by reference.

(h)(4) Master Fee Cap/Fee Waiver Agreement, dated, Oct. 1, 2005, as amended May 1, 2007, between RiverSource Investments, LLC, Ameriprise Financial, Inc., RiverSource Service Corporation, Ameriprise Financial Services, Inc., RiverSource Distributors, Inc. and the RiverSource Funds filed electronically on or about June 28, 2007 as Exhibit (h)(4) to Registrant's Post-Effective Amendment No. 3 to Registration Statement No. 333-131683 is incorporated by reference.

(h)(5) License Agreement, amended and restated, dated May 1, 2006, between Ameriprise Financial, Inc. and RiverSource Funds filed electronically on or about May 24, 2006 as Exhibit (h)(5) to RiverSource Selected Series, Inc. Post-Effective Amendment No. 44 to Registration Statement No. 2-93745 is incorporated by reference.

(h)(6) Administrative Services Agreement between Registrant and Ameriprise Financial, Inc. for the RiverSource 120/20 Contrarian Equity Fund and RiverSource 130/30 U.S. Equity Fund to be filed by Amendment.

(h)(7) Transfer Agency Agreement between Registrant and RiverSource Service Corporation for the RiverSource 120/20 Contrarian Equity Fund and RiverSource 130/30 U.S. Equity Fund to be filed by Amendment.

(i) Opinion and consent of counsel as to the legality of the securities being registered is filed electronically herewith.

(j) Consent of Independent Registered Public Accounting Firm: Not Applicable.

(k) Omitted Financial Statements: Not Applicable.

(l) Initial Capital Agreement: Not Applicable.

(m)(1) Plan and Agreement of Distribution, dated May 1, 2006, amended and restated as of May 1, 2007, between Registrant and Ameriprise Financial Services, Inc. filed electronically on or about May 29, 2007 as Exhibit
(m)(1) to RiverSource Selected Series, Inc. Post-Effective Amendment No. 47 to Registration Statement No. 2-93745 is incorporated by reference.


(m)(2) Plan and Agreement of Distribution, dated Aug. 1, 2006, amended and restated as of May 1, 2007, between Registrant and RiverSource Distributors, Inc. filed electronically on or about May 29, 2007 as Exhibit (m)(2) to RiverSource Selected Series, Inc. Post-Effective Amendment No. 47 to Registration Statement No. 2-93745 is incorporated by reference.

(m)(3) Plan and Agreement of Distribution between Registrant and Ameriprise Financial Services, Inc. for the RiverSource 120/20 Contrarian Equity Fund and RiverSource 130/30 U.S. Equity Fund to be filed by Amendment.

(m)(4) Plan and Agreement of Distribution between Registrant and RiverSource Distributors, Inc. for the RiverSource 120/20 Contrarian Equity Fund and RiverSource 130/30 U.S. Equity Fund to be filed by Amendment.

(n) Rule 18f - 3(d) Plan, amended and restated as of Dec. 11, 2006, filed electronically on or about Jan. 26, 2007 as Exhibit (n) to RiverSource Equity Series, Inc. Post-Effective Amendment No. 103 to Registration Statement No. 2-13188 is incorporated by reference.

(o) Reserved.

(p)(1) Code of Ethics adopted under Rule 17j-1 for Registrant filed electronically on or about Aug. 27, 2007 as Exhibit (p)(1) to RiverSource Sector Series, Inc. Post-Effective Amendment No. 39 to Registration Statement No. 33-20872 is incorporated by reference.

(p)(2) Codes of Ethics adopted under Rule 17j-1 for Registrant's investment adviser and Registrant's principal underwriter, dated Jan. 2007 and April 2006, filed electronically on or about Jan. 26, 2007 as Exhibit
(p)(2) to RiverSource Equity Series, Inc. Post-Effective Amendment No. 103 to Registration Statement No. 2-13188 are incorporated by reference.

(q) Directors/Trustees Power of Attorney to sign Amendments to this Registration Statement, dated Sept. 11, 2007, is filed electronically herewith as Exhibit (q) to Registrant's Post-Effective Amendment No. 5 to Registration Statement No. 333-131683.


Item 24. Persons Controlled by or Under Common Control with Registrant:

None.

Item 25. Indemnification

The Agreement and Declaration of Trust of the registrant provides that the Trust shall indemnify any person who was or is a party or is threatened to be made a party, by reason of the fact that she or he is or was a trustee, officer, employee or agent of the Trust, or is or was serving at the request of the Trust as a trustee, officer, employee or agent of another company, partnership, joint venture, trust or other enterprise, to any threatened, pending or completed action, suit or proceeding, wherever brought, and the Trust may purchase liability insurance and advance legal expenses, all to the fullest extent permitted by the laws of the State of Massachusetts, as now existing or hereafter amended. The By-laws of the registrant provide that present or former trustees or officers of the Trust made or threatened to be made a party to or involved (including as a witness) in an actual or threatened action, suit or proceeding shall be indemnified by the Trust to the full extent authorized by the Massachusetts Business Corporation Act, all as more fully set forth in the By-laws filed as an exhibit to this registration statement.

Insofar as indemnification for liability arising under the Securities Act of 1933 may be permitted to trustees, officers and controlling persons of the registrant pursuant to the foregoing provisions, or otherwise, the registrant has been advised that in the opinion of the Securities and Exchange Commission such indemnification is against public policy as expressed in the Act and is, therefore, unenforceable. In the event that a claim for indemnification against such liabilities (other than the payment by the registrant of expenses incurred or paid by a trustee, officer or controlling person of the registrant in the successful defense of any action, suit or proceeding) is asserted by such trustee, officer or controlling person in connection with the securities being registered, the registrant will, unless in the opinion of its counsel the matter has been settled by controlling precedent, submit to a court of appropriate jurisdiction the question whether such indemnification by it is against public policy as expressed in the Act and will be governed by the final adjudication of such issue.

Any indemnification hereunder shall not be exclusive of any other rights of indemnification to which the trustees, officers, employees or agents might otherwise be entitled. No indemnification shall be made in violation of the Investment Company Act of 1940.


Item 26.        Business and Other Connections of Investment Adviser (RiverSource Investments, LLC.)

Directors and officers of RiverSource Investments, LLC. who are directors and/or
officers of one or more other companies:

Name and Title                 Other company(s)                   Address*                     Title within other
                                                                                               company(s)
-------------------------      -----------------------            -------------------------    -----------------------
Neysa M. Alecu                 Advisory Capital Partners LLC                                   Anti-Money Laundering
Anti-Money Laundering                                                                          Officer
Officer
                               Advisory Capital Strategies                                     Anti-Money Laundering
                               Group Inc.                                                      Officer

                               Advisory Convertible Arbitrage                                  Anti-Money Laundering
                               LLC                                                             Officer

                               Advisory Select LLC                                             Anti-Money Laundering
                                                                                               Officer

                               American Enterprise                                             Anti-Money Laundering
                               Investment Services, Inc.                                       Officer

                               American Enterprise REO 1 LLC                                   Anti-Money Laundering

                               American Express Asset Management                               Anti-Money Laundering
                               International, Inc.                                             Officer

                               American Express Insurance                                      Anti-Money Laundering
                               Agency of Alabama Inc.                                          Officer

                               American Express Insurance                                      Anti-Money Laundering
                               Agency of Arizona Inc.                                          Officer

                               American Express Insurance                                      Anti-Money Laundering
                               Agency of Idaho Inc.                                            Officer

                               American Express Insurance                                      Anti-Money Laundering
                               Agency of Maryland Inc.                                         Officer

                               American Express Insurance                                      Anti-Money Laundering
                               Agency of Massachusetts Inc.                                    Officer

                               American Express Insurance                                      Anti-Money Laundering
                               Agency of Nevada Inc.                                           Officer

                               American Express Insurance                                      Anti-Money Laundering
                               Agency of New Mexico Inc.                                       Officer

                               American Express Insurance                                      Anti-Money Laundering
                               Agency of Oklahoma Inc.                                         Officer

                               American Express Insurance                                      Anti-Money Laundering
                               Agency of Texas Inc.                                            Officer

                               American Express Insurance                                      Anti-Money Laundering
                               Agency of Wyoming Inc.                                          Officer

                               American Partners Life                                          Anti-Money Laundering
                               Insurance Company                                               Officer

                               Ameriprise Auto & Home Insurance                                Anti-Money Laundering
                               Agency Inc.                                                     Officer

                               Ameriprise Certificate Company                                  Anti-Money Laundering
                                                                                               Officer

                               Ameriprise Financial Inc.                                       Anti-Money Laundering

                               Ameriprise Financial Services,                                  Anti-Money Laundering
                               Inc.                                                            Officer

                               Boston Equity General                                           Anti-Money Laundering
                               Partner LLC                                                     Officer

                               IDS Capital Holdings Inc.                                       Anti-Money Laundering
                                                                                               Officer

                               RiverSource Life Insurance Company                              Anti-Money Laundering
                                                                                               Officer

                               IDS Management Corporation                                      Anti-Money Laundering
                                                                                               Officer

                               RiverSource Distributors Inc.                                   Anti-Money Laundering
                                                                                               Officer

                               RiverSource Service Corporation                                 Anti-Money Laundering
                                                                                               Officer

Ward D. Armstrong              Ameriprise Express Asset                                        Director
Director and Senior            Management International Inc.
Vice President

                               Ameriprise Financial Inc.                                       Senior Vice President -
                                                                                               Retirement Services and
                                                                                               Asset Management Group

                               Ameriprise Financial                                            Senior Vice President -
                               Services Inc.                                                   Retirement Services and
                                                                                               Asset Management Group

                               Ameriprise Trust                                                Director and Chairman of
                               Company                                                         the Board

                               Kenwood Capital Management LLC                                  Manager

John M. Baker                  Ameriprise Financial Inc.                                       Vice President - Plan Sponsor
Vice President                                                                                 Services

                               Ameriprise Financial                                            Vice President - Chief Client
                               Services Inc.                                                   Service Officer

                               Ameriprise Trust                                                Director and Senior Vice President
                               Company

Dimitris Bertsimas             None                                                            None
Vice President and Senior
Portfolio Manager

Walter S. Berman               Advisory Capital Partners LLC                                   Treasurer
Treasurer
                               Advisory Capital Strategies                                     Treasurer
                               Group Inc.

                               Advisory Convertible Arbitrage                                  Treasurer
                               LLC

                               Advisory Select LLC                                             Treasurer

                               American Enterprise REO 1, LLC                                  Treasurer

                               American Express Asset Management                               Treasurer
                               International, Inc.

                               American Express                                                Vice President and Treasurer
                               Financial Advisors Services
                               Japan Inc.

                               American Express Insurance                                      Treasurer
                               Agency of Alabama Inc.

                               American Express Insurance                                      Treasurer
                               Agency of Arizona Inc.

                               American Express Insurance                                      Treasurer
                               Agency of Idaho Inc.

                               American Express Insurance                                      Treasurer
                               Agency of Maryland Inc.

                               American Express Insurance                                      Treasurer
                               Agency of Massachusetts Inc.

                               American Express Insurance                                      Treasurer
                               Agency of Nevada Inc.

                               American Express Insurance                                      Treasurer
                               Agency of New Mexico Inc.

                               American Express Insurance                                      Treasurer
                               Agency of Oklahoma Inc.

                               American Express Insurance                                      Treasurer
                               Agency of Wyoming Inc.

                               American Express Property                                       Treasurer
                               Casualty Insurance Agency
                               of Kentucky Inc.

                               American Express Property                                       Treasurer
                               Casualty Insurance Agency
                               of Maryland Inc.

                               American Express Property                                       Treasurer
                               Casualty Insurance Agency
                               of Pennsylvania Inc.

                               Ameriprise Auto & Home Insurance                                Treasurer
                               Agency Inc.

                               Ameriprise Certificate Company                                  Treasurer

                               Ameriprise Financial Inc.                                       Executive Vice President and
                                                                                               Chief Financial

                               Ameriprise Financial                                            Director
                               Services Inc.

                               Ameriprise Insurance Company                                    Treasurer

                               AMEX Assurance Company                                          Treasurer

                               Boston Equity General                                           Treasurer
                               Partner LLC

                               IDS Cable Corporation                                           Treasurer

                               IDS Cable II Corporation                                        Treasurer

                               IDS Capital Holdings Inc.                                       Treasurer

                               RiverSource Life Insurance Company                              Vice President and Treasurer

                               RiverSource Life Insurance Co.                                  Vice President and Treasurer
                               of New York

                               IDS Management Corporation                                      Treasurer

                               IDS Partnership Services                                        Treasurer
                               Corporation

                               IDS Property Casualty                                           Treasurer
                               Insurance Company

                               IDS Realty Corporation                                          Treasurer

                               IDS REO 1, LLC                                                  Treasurer

                               IDS REO 2, LLC                                                  Treasurer

                               Investors Syndicate                                             Vice President and Treasurer
                               Development Corp.

                               Kenwood Capital                                                 Treasurer
                               Management LLC

                               RiverSource Service Corporation                                 Treasurer

                               RiverSource Tax Advantaged                                      Treasurer
                               Investments Inc.

                               Threadneedle Asset Management                                   Director
                               Holdings LTD

Richard N. Bush                Advisory Capital Partners LLC                                   Senior Vice President - Corporate Tax
Senior Vice President -
Corporate Tax
                               Advisory Capital Strategies                                     Senior Vice President - Corporate Tax
                               Group Inc.

                               Advisory Convertible Arbitrage                                  Senior Vice President - Corporate Tax
                               LLC

                               American Enterprise Investment                                  Senior Vice President - Corporate Tax
                               Services Inc

                               American Enterprise REO 1 LLC                                   Senior Vice President - Corporate Tax

                               American Express Asset                                          Senior Vice President - Corporate Tax
                               Management International Inc

                               American Express Financial                                      Senior Vice President - Corporate Tax
                               Advisors Japan Inc.

                               American Express Insurance                                      Senior Vice President - Corporate Tax
                               Agency of Alabama Inc.

                               American Express Insurance                                      Senior Vice President - Corporate Tax
                               Agency of Arizona Inc.

                               American Express Insurance                                      Senior Vice President - Corporate Tax
                               Agency of Idaho Inc.

                               American Express Insurance                                      Senior Vice President - Corporate Tax
                               Agency of Maryland Inc.

                               American Express Insurance                                      Senior Vice President - Corporate Tax
                               Agency of Massachusetts Inc.

                               American Express Insurance                                      Senior Vice President - Corporate Tax
                               Agency of Nevada Inc.

                               American Express Insurance                                      Senior Vice President - Corporate Tax
                               Agency of New Mexico Inc

                               American Express Insurance                                      Senior Vice President - Corporate Tax
                               Agency of Oklahoma Inc.

                               American Express Insurance                                      Senior Vice President - Corporate Tax
                               Agency of Wyoming Inc.

                               American Express Property                                       Senior Vice President - Corporate Tax
                               Casualty Insurance Agency of
                               Kentucky Inc.

                               American Express Property                                       Senior Vice President - Corporate Tax
                               Casualty Insurance Agency of
                               Maryland Inc.

                               American Express Property                                       Senior Vice President - Corporate Tax
                               Casualty Insurance Agency of
                               Pennsylvania Inc.

                               Ameriprise Financial Inc.                                       Senior Vice President - Corporate Tax

                               Ameriprise Financial Services                                   Senior Vice President - Corporate Tax
                               Inc.

                               Ameriprise Insurance Company                                    Senior Vice President - Corporate Tax

                               AMEX Assurance Company                                          Senior Vice President - Corporate Tax

                               Boston Equity General Partner LLC                               Senior Vice President - Corporate Tax

                               IDS Cable Corporation                                           Senior Vice President - Corporate Tax

                               IDS Cable II Corporation                                        Senior Vice President - Corporate Tax

                               IDS Capital Holdings Inc.                                       Senior Vice President - Corporate Tax

                               IDS Futures Corporation                                         Senior Vice President - Corporate Tax

                               RiverSource Life Insurance Company                              Senior Vice President - Corporate Tax

                               RiverSource Life Insurance Co. of                               Senior Vice President - Corporate Tax
                               New York

                               IDS Management Corporation                                      Senior Vice President - Corporate Tax

                               IDS Property Casualty Insurance                                 Senior Vice President - Corporate Tax
                               Company

                               IDS Realty Corporation                                          Senior Vice President - Corporate Tax

                               IDS REO 1 LLC                                                   Senior Vice President - Corporate Tax

                               IDS REO 2 LLC                                                   Senior Vice President - Corporate Tax

                               RiverSource Service Corporation                                 Senior Vice President - Corporate Tax

                               Riversource Tax Advantaged                                      Senior Vice President - Corporate Tax
                               Investments Inc.

Kevin J. Callahan              None                                                            None
Vice President

Robert D. Ewing                Advisory Capital Strategies                                     Vice President
Vice President and Senior      Group Inc.
Portfolio Manager
                               Boston Equity General                                           Vice President
                               Partner LLC

Peter A. Gallus                Advisory Capital Partners LLC                                   President, Chief Operating Officer
Senior Vice President,                                                                         and Chief Compliance Officer
Chief Operating Officer
and Assistant Treasurer        Advisory Capital Strategies                                     Director, President, Chief Operating
                               Group Inc.                                                      Officer and Chief Compliance Officer

                               Advisory Convertible
                               Arbitrage LLC                                                   President, Chief Operating Officer
                                                                                               and Chief Compliance Officer

                               Advisory Select LLC                                             Vice President and Chief
                                                                                               Compliance Officer

                               American Express Asset                                          Assistant Treasurer
                               Management International, Inc.

                               Ameriprise Financial Inc.                                       Vice President - Investment
                                                                                               Administration

                               Ameriprise Financial                                            Vice President - CAO
                               Services Inc.                                                   Investment Management

                               Boston Equity General                                           President, Chief Operating Officer
                               Partner LLC                                                     and Chief Compliance Officer

                               IDS Capital Holdings Inc.                                       Vice President and Controller

                               Kenwood Capital Management LLC                                  Manager

Jim Hamalainen                 Ameriprise Financial Inc.                                       Assistant Treasurer
Vice President - Asset
Liability Management           RiverSource Life Insurance Company                              Vice President - Investments

                               RiverSource Life Insurance Co. of New York                      Vice President - Investments

James C. Jackson               None                                                            None
Vice President and Senior
Portfolio Manager

Christopher P. Keating         Ameriprise Trust Company                                        Director
Head of Institutional Sales,
Client Service and
Consultant Relationships

Michelle M. Keeley             American Express                                                Director
Director and Executive Vice    Asset Management
President - Equity and         International Inc.
Fixed Income
                               Ameriprise                                                      Vice President-Investments
                               Certificate Company

                               Ameriprise Financial Inc.                                       Executive Vice President-Equity and
                                                                                               Fixed Income

                               Ameriprise Financial                                            Executive Vice President-Equity and
                               Services Inc.                                                   Fixed Income

                               Ameriprise Insurance Company                                    Vice President-Investments

                               AMEX Assurance Company                                          Vice President-Investments

                               RiverSource Life Insurance Company                              Vice President-Investments

                               Ameriprise Property Casualty Insurance                          Vice President-Investments
                               Company

                               Kenwood Capital Management LLC                                  Manager

Brian J. McGrane               Advisory Capital Partners LLC                                   Vice President and Chief Financial
Vice President and                                                                             Officer
Chief Financial Officer        Advisory Capital                                                Vice President and Chief Financial
                               Strategies Group Inc.                                           Officer

                               Advisory Convertible                                            Vice President and Chief Financial
                               Arbitrage LLC                                                   Officer

                               Advisory Select LLC                                             Vice President and Chief Financial
                                                                                               Officer

                               American Express Asset                                          Vice President and Chief Financial
                               Management International Inc.                                   Officer

                               Ameriprise                                                      Vice President and Chief Financial
                               Certificate Company                                             Officer

                               Ameriprise Financial Inc.                                       Senior Vice President and Lead
                                                                                               Financial Officer Finance

                               Ameriprise Financial                                            Vice President and Lead
                               Services Inc.                                                   Financial Officer Finance

                               Ameriprise Trust Company                                        Director

                               Boston Equity General                                           Vice President and Chief Financial
                               Partner LLC                                                     Officer

                               RiverSource Life Insurance Company                              Director, Executive Vice President
                                                                                               and Chief Financial Officer

Thomas R. Moore                American Enterprise Investment                                  Secretary
Secretary                      Services Inc.

                               American Enterprise REO 1 LLC                                   Secretary

                               American Express Insurance                                      Secretary
                               Agency of Alabama Inc.

                               American Express Insurance                                      Secretary
                               Agency of Arizona Inc.

                               American Express Insurance                                      Secretary
                               Agency of Idaho Inc.

                               American Express Insurance                                      Secretary
                               Agency of Maryland Inc.

                               American Express Insurance                                      Secretary
                               Agency of Massachusetts Inc.

                               American Express Insurance                                      Secretary
                               Agency of Nevada Inc.

                               American Express Insurance                                      Secretary
                               Agency of New Mexico Inc.

                               American Express Insurance                                      Secretary
                               Agency of Oklahoma Inc.

                               American Express Insurance                                      Secretary
                               Agency of Wyoming Inc.

                               American Partners Life                                          Secretary
                               Insurance Company

                               Ameriprise Financial Inc.                                       Secretary

                               Ameriprise Financial                                            Secretary
                               Services Inc.

                               Ameriprise Trust Company                                        Secretary

                               IDS Cable Corporation                                           Secretary

                               IDS Cable II Corporation                                        Secretary

                               IDS Capital Holdings Inc.                                       Secretary

                               RiverSource Life Insurance Company                              Secretary

                               RiverSource Life Insurance Co.                                  Secretary
                               of New York

                               IDS Management Corporation                                      Secretary

                               IDS Realty Corporation                                          Secretary

                               IDS REO 1 LLC                                                   Secretary

                               IDS REO 2 LLC                                                   Secretary

                               Investors Syndicate                                             Secretary
                               Development Corporation

                               RiverSource Distributors Inc.                                   Secretary

                               RiverSource Service Corporation                                 Secretary

                               RiverSource Tax Advantaged                                      Secretary
                               Investments Inc.

Thomas W. Murphy               Ameriprise Certificate Company                                  Vice President - Investments
Vice President and Senior
Sector Manager                 Ameriprise Insurance Company                                    Vice President - Investments

                               AMEX Assurance Company                                          Vice President - Investments

                               RiverSource Life Insurance Company                              Vice President - Investments

                               RiverSource Life Insurance Co.                                  Vice President - Investments
                               of New York

                               IDS Property Casualty                                           Vice President - Investments
                               Insurance Company

Patrick T. Olk                 None                                                            None
Vice President

Benji Orr                      Advisory Capital Partners LLC                                   Deputy Anti-Money Laundering
Deputy Anti-Money                                                                              Officer
Laundering
Officer                        Advisory Capital Strategies Group                               Deputy Anti-Money Laundering
                               Inc.                                                            Officer

                               Advisory Convertible Arbitrage                                  Deputy Anti-Money Laundering
                               LLC                                                             Officer

                               Advisory Select LLC                                             Deputy Anti-Money Laundering
                                                                                               Officer

                               American Enterprise Investment                                  Deputy Anti-Money Laundering
                               Services Inc                                                    Officer

                               American Enterprise REO 1 LLC                                   Deputy Anti-Money Laundering
                                                                                               Officer

                               American Express Asset Management                               Deputy Anti-Money Laundering
                               International Inc.                                              Officer

                               American Express Insurance Agency                               Deputy Anti-Money Laundering
                               of Alabama Inc.                                                 Officer

                               American Express Insurance Agency                               Deputy Anti-Money Laundering
                               of Arizona Inc.                                                 Officer

                               American Express Insurance Agency                               Deputy Anti-Money Laundering
                               of Idaho Inc.                                                   Officer

                               American Express Insurance Agency                               Deputy Anti-Money Laundering
                               of Maryland Inc.                                                Officer

                               American Express Insurance Agency                               Deputy Anti-Money Laundering
                               of Massachusetts Inc.                                           Officer

                               American Express Insurance Agency                               Deputy Anti-Money Laundering
                               of Nevada Inc.                                                  Officer

                               American Express Insurance Agency                               Deputy Anti-Money Laundering
                               of New Mexico Inc.                                              Officer

                               American Express Insurance Agency                               Deputy Anti-Money Laundering
                               of Oklahoma Inc.                                                Officer

                               American Express Insurance Agency                               Deputy Anti-Money Laundering
                               of Texas Inc.                                                   Officer

                               American Express Insurance Agency                               Deputy Anti-Money Laundering
                               of Wyoming Inc.                                                 Officer

                               American Partners Life Insurance                                Deputy Anti-Money Laundering
                               Company                                                         Officer

                               Ameriprise Auto & Home Insurance                                Deputy Anti-Money Laundering
                               Agency Inc.                                                     Officer

                               Ameriprise Certificate Company                                  Deputy Anti-Money Laundering
                                                                                               Officer

                               Ameriprise Financial Inc.                                       Deputy Anti-Money Laundering
                                                                                               Officer

                               Ameriprise Financial Services,                                  Deputy Anti-Money Laundering
                               Inc.                                                            Officer

                               Boston Equity General Partner LLC                               Deputy Anti-Money Laundering
                                                                                               Officer

                               IDS Capital Holdings Inc.                                       Deputy Anti-Money Laundering
                                                                                               Officer

                               RiverSource Life Insurance Company                              Deputy Anti-Money Laundering
                                                                                               Officer

                               IDS Management Corporation                                      Deputy Anti-Money Laundering
                                                                                               Officer

                               RiverSource Distributors Inc.                                   Deputy Anti-Money Laundering
                                                                                               Officer

                               RiverSource Service Corporation                                 Deputy Anti-Money Laundering
                                                                                               Officer

Jennifer L. Ponce De Leon      None                                                            None
Vice President and Senior
Sector Manager High Yield

Warren E. Spitz                None                                                            None
Vice President and Senior
Portfolio Manager

Nainoor C. "Nick" Thakore      Advisory Capital Strategies                                     Vice President
Vice President and Senior      Group, Inc.
Portfolio Manager
                               Boston Equity General                                           Vice President
                               Partner LLC

William F. "Ted" Truscott      Advisory Capital Strategies                                     Director
President, Chairman of the     Group Inc.
Board and Chief Investment
Officer                        American Express Asset                                          Director
                               Management International, Inc.

                               Ameriprise Certificate Company                                  Director, President and Chief
                                                                                               Executive Officer

                               Ameriprise Financial Inc.                                       President - U.S. Asset Management
                                                                                               and Chief Investment Officer

                               Ameriprise Financial                                            Senior Vice President and
                               Services Inc.                                                   Chief Investment Officer

                               IDS Capital Holdings Inc.                                       Director and President

                               Kenwood Capital Management LLC                                  Manager

                               RiverSource Distributors, Inc.                                  Director

                               Threadneedle Asset Management                                   Director
                               Holdings LTD

* Unless otherwise noted, address is 70100 Ameriprise Financial Center, Minneapolis, MN 55474.


Item 27. Principal Underwriters

(a) Not Applicable.
(b) Not Applicable.
(c) Not Applicable.

Item 28. Location of Accounts and Records

Ameriprise Financial, Inc.
70100 Ameriprise Financial Center
Minneapolis, MN 55474

Item 29. Management Services

Not Applicable.

Item 30. Undertakings

Not Applicable.


SIGNATURES

Pursuant to the requirements of the Securities Act and the Investment Company Act, the Registrant, RIVERSOURCE SERIES TRUST, certifies that it meets all of the requirements for effectiveness of this Amendment to its Registration Statement under Rule 485(b) under the Securities Act and has duly caused this Amendment to its Registration Statement to be signed on its behalf by the undersigned, duly authorized, in the City of Minneapolis and the State of Minnesota on the 2nd day of Oct., 2007.

RIVERSOURCE SERIES TRUST

By /s/ Patrick T. Bannigan
   -------------------------------------
   Patrick T. Bannigan
   President


By /s/ Jeffrey P. Fox
   -------------------------------------
   Jeffrey P. Fox
   Treasurer

Pursuant to the requirements of the Securities Act, this Amendment to the Registration Statement has been signed below by the following persons in the capacities indicated on the 2nd day of Oct., 2007.

Signature                                  Capacity
---------                                  ----------------------


/s/ Stephen R. Lewis, Jr.*                 Chair of the Board
----------------------------------------
Stephen R. Lewis, Jr.


/s/ Kathleen A. Blatz*                     Trustee
----------------------------------------
Kathleen A. Blatz


/s/ Arne H. Carlson*                       Trustee
----------------------------------------
Arne H. Carlson


/s/ Pamela G. Carlton*                     Trustee
----------------------------------------
Pamela G. Carlton


/s/ Patricia M. Flynn*                     Trustee
----------------------------------------
Patricia M. Flynn


/s/ Anne P. Jones*                         Trustee
----------------------------------------
Anne P. Jones


/s/ Jeffrey Laikind*                       Trustee
----------------------------------------
Jeffrey Laikind


/s/ Catherine James Paglia*                Trustee
----------------------------------------
Catherine James Paglia


/s/ Alison Taunton-Rigby*                  Trustee
----------------------------------------
Alison Taunton-Rigby


/s/ William F. Truscott*                   Trustee
----------------------------------------
William F. Truscott

* Signed pursuant to Directors/Trustees Power of Attorney, dated Sept. 11, 2007, filed electronically herewith as Exhibit (q) to Registrant's Post-Effective Amendment No. 5 to Registration Statement No. 333-131683, by:

/s/ Scott R. Plummer
----------------------------------------
Scott R. Plummer


Contents of this Post-Effective Amendment No. 5 to Registration Statement No. 333-131683

This Post-Effective Amendment contains the following papers and documents:

The facing sheet.

Part A.

The prospectus for:

RiverSource 120/20 Contrarian Equity Fund. RiverSource 130/30 U.S. Equity Fund.

Part B.

Statement of Additional Information.

Part C.

Other information.

The signatures.


EXHIBIT INDEX

(a)(2) Amendment No. 1 to the Agreement and Declaration of Trust.

(i) Opinion and consent of counsel as to the legality of the securities being registered.

(q) Directors/Trustees Power of Attorney to sign Amendments to this Registration Statement, dated Sept. 11, 2007.


RIVERSOURCE RETIREMENT SERIES TRUST

AMENDMENT NO. 1 TO THE
AGREEMENT AND DECLARATION OF TRUST

WHEREAS, Section 1 of Article I of the Agreement and Declaration of Trust (the "Declaration of Trust") dated January 20, 2006 of RiverSource Retirement Series Trust (the "Trust"), a copy of which is on file in the Office of the Secretary of The Commonwealth of Massachusetts, authorizes the Trustees of the Trust to amend the Declaration of Trust to change the name of the Trust without authorization by vote of the Shareholders of the Trust.

WHEREAS, Section 5 of Article 1 of the Declaration of Trust of the Trust, authorizes the Trustees of the Trust to amend the Declaration of Trust to create one or more Series of classes of Shares (in addition to any Series or classes already existing or otherwise) with such rights and preferences and such eligibility requirements for investment therein as the Trustees shall determine without authorization by vote of the Shareholders of the Trust.

NOW, THEREFORE, The undersigned, being at least a majority of the Trustees of RiverSource Retirement Series Trust, do hereby certify that we have determined to conduct the business of the Trust under the name "RiverSource Series Trust" and have authorized the creation of two additional Series of the Trust, and have authorized the following amendment to said Declaration of Trust:

Section 1 of Article I is hereby amended to read in its entirety as follows:

Section 1. This Trust shall be known as "RiverSource Series Trust" and the Trustees shall conduct the business of the Trust under that name or any other name as they may from time to time determine.

Section 6 of Article I is hereby amended to read as follows:

Section 6. Establishment and Designation of Series and Classes. Without limiting the authority of the Trustees as set forth in Section 5, inter alia, to establish and designate any further Series or classes or to modify the rights and preferences of any Series or class, the following Series shall be, and are hereby, established and designated;

RiverSource Retirement Plus Fund - 2010 RiverSource Retirement Plus Fund - 2015 RiverSource Retirement Plus Fund - 2020 RiverSource Retirement Plus Fund - 2025 RiverSource Retirement Plus Fund - 2030 RiverSource Retirement Plus Fund - 2035 RiverSource Retirement Plus Fund - 2040 RiverSource Retirement Plus Fund - 2045 RiverSource 120/20 Contrarian Equity Fund RiverSource 130/30 U.S. Equity Fund

Shares of each Series established in this Section 6 shall have the following rights and preferences relative to Shares of each other Series, and Shares of each class of a Multi-Class Series shall have such


rights and preferences relative to other classes of the same Series as are set forth below, together with such other rights and preferences relative to such other classes as are set forth in any resolutions of the Trustees establishing and designating such class of Shares.

The rest of this Section 6 remains unchanged.

The foregoing amendment is effective as of September 11, 2007.

[The remainder of this page intentionally left blank.]


IN WITNESS WHEREOF, the undersigned has signed this Amendment No. 1 to the Agreement and Declaration of Trust on September 11, 2007.

/s/ Kathleen Blatz                      /s/ Arne H. Carlson
-------------------------------------   ----------------------------------------
Kathleen Blatz *                        Arne H. Carlson *


/s/ Pamela G. Carlton                   /s/ Patricia M. Flynn
-------------------------------------   ----------------------------------------
Pamela G. Carlton *                     Patricia M. Flynn *


/s/ Anne P. Jones                       /s/ Jeffrey Laikind
-------------------------------------   ----------------------------------------
Anne P. Jones *                         Jeffrey Laikind *


/s/ Stephen R. Lewis, Jr.               /s/ Catherine James Paglia
-------------------------------------   ----------------------------------------
Stephen R. Lewis, Jr. *                 Catherine James Paglia *


/s/ Alison Taunton-Rigby                /s/ William F. Truscott
-------------------------------------   ----------------------------------------
Alison Taunton-Rigby *                  William F. Truscott **

* 901 S. Marquette Avenue
Minneapolis, MN 55402

** 53600 Ameriprise Financial Center
Minneapolis, MN 55474

Registered Agent: Corporation Service Company 84 State Street
Boston, MA 02109


October 2, 2007

RiverSource Series Trust
50606 Ameriprise Financial Center
Minneapolis, Minnesota 55474

Gentlemen:

I have examined the Agreement and Declaration of Trust and the By-Laws of RiverSource Series Trust (the Trust) and all necessary certificates, permits, minute books, documents and records of the Trust, and the applicable statutes of the Commonwealth of Massachusetts, and it is my opinion that the shares sold in accordance with applicable federal and state securities laws will be legally issued, fully paid, and nonassessable.

This opinion may be used in connection with the Post-Effective Amendment.

Sincerely,

/s/ Scott R. Plummer
-------------------------------------
Scott R. Plummer
General Counsel
RiverSource Funds


DIRECTORS/TRUSTEES POWER OF ATTORNEY

City of Minneapolis

State of Minnesota

Each of the undersigned, as directors and trustees of the below listed open-end investment companies that previously have filed registration statements and amendments thereto pursuant to the requirements of the Securities Act of 1933 and/or the Investment Company Act of 1940 with the Securities and Exchange Commission:

                                                            1933 Act      1940 Act
                                                           Reg. Number   Reg. Number
                                                           -----------   -----------
RiverSource Bond Series, Inc.                              2-72174       811-3178
RiverSource California Tax-Exempt Trust                    33-5103       811-4646
RiverSource Dimensions Series, Inc.                        2-28529       811-1629
RiverSource Diversified Income Series, Inc.                2-51586       811-2503
RiverSource Equity Series, Inc.                            2-13188       811-772
RiverSource Global Series, Inc.                            33-25824      811-5696
RiverSource Government Income Series, Inc.                 2-96512       811-4260
RiverSource High Yield Income Series, Inc.                 2-86637       811-3848
RiverSource Income Series, Inc.                            2-10700       811-499
RiverSource International Managers Series, Inc.            333-64010     811-10427
RiverSource International Series, Inc.                     2-92309       811-4075
RiverSource Investment Series, Inc.                        2-11328       811-54
RiverSource Large Cap Series, Inc.                         2-38355       811-2111
RiverSource Managers Series, Inc.                          333-57852     811-10321
RiverSource Market Advantage Series, Inc.                  33-30770      811-5897
RiverSource Money Market Series, Inc.                      2-54516       811-2591
RiverSource Sector Series, Inc.                            33-20872      811-5522
RiverSource Selected Series, Inc.                          2-93745       811-4132
RiverSource Series Trust                                   333-131683    811-21852
RiverSource Short Term Investments Series, Inc.            N/A           811-21914
RiverSource Special Tax-Exempt Series Trust                33-5102       811-4647
RiverSource Strategic Allocation Series, Inc.              2-93801       811-4133
RiverSource Strategy Series, Inc.                          2-89288       811-3956
RiverSource Tax-Exempt Series, Inc.                        2-57328       811-2686
RiverSource Tax-Exempt Income Series, Inc.                 2-63552       811-2901
RiverSource Tax-Exempt Money Market Series, Inc.           2-66868       811-3003
RiverSource Variable Portfolio-Income Series, Inc.         2-73113       811-3219
RiverSource Variable Portfolio-Investment Series, Inc.     2-73115       811-3218
RiverSource Variable Portfolio-Managed Series, Inc.        2-96367       811-4252
RiverSource Variable Portfolio-Managers Series, Inc        333-61346     811-10383
RiverSource Variable Portfolio-Money Market Series, Inc.   2-72584       811-3190
RiverSource Variable Portfolio-Select Series, Inc.         333-113780    811-21534
RiverSource Variable Series Trust                               *              *

* To be assigned.


hereby constitutes and appoints Steven R. Lewis, Jr., any other member of the Boards who is not an interested person of the investment manager, and Scott R. Plummer or any one of these persons individually as her or his attorney-in-fact and agent to file and sign for her or him in her or his name, place and stead any and all further amendments to said registration statements with all exhibits and other documents thereto pursuant to said Acts and any rules and regulations thereunder and grants them the full power and authority to do and perform each and every act required and necessary to be done in connection therewith.

Dated the 11th day of September, 2007.

/s/ Kathleen A. Blatz                   /s/ Jeffrey Laikind
-------------------------------------   ----------------------------------------
Kathleen A. Blatz                       Jeffrey Laikind


/s/ Arne H. Carlson                     /s/ Stephen R. Lewis, Jr.
-------------------------------------   ----------------------------------------
Arne H. Carlson                         Stephen R. Lewis, Jr.


/s/ Pamela G. Carlton                   /s/ Catherine James Paglia
-------------------------------------   ----------------------------------------
Pamela G. Carlton                       Catherine James Paglia


/s/ Patricia M. Flynn                   /s/ Alison Taunton-Rigby
-------------------------------------   ----------------------------------------
Patricia M. Flynn                       Alison Taunton-Rigby


/s/ Anne P. Jones                       /s/ William F. (Ted) Truscott
-------------------------------------   ----------------------------------------
Anne P. Jones                           William F. (Ted) Truscott