PROSPECTUS SUPPLEMENT -- MAY 1, 2010

FUND (PROSPECTUS EFFECTIVE DATE)                                 MATERIAL NUMBER
RiverSource Disciplined Equity Fund (Sept. 29, 2009)                 S-6263-99 J

On May 1, 2010, Ameriprise Financial, Inc. (Ameriprise Financial) announced the
closing of its acquisition of the long-term asset management business of
Columbia Management Group, LLC and certain of its affiliated companies from Bank
of America (the Columbia Transaction). In connection with the Columbia
Transaction, effective May 1, 2010, the Fund's investment manager, RiverSource
Investments, LLC, a wholly owned subsidiary of Ameriprise Financial, changed its
name to Columbia Management Investment Advisers, LLC. In connection with the
Columbia Transaction, the Fund's portfolio managers have been changed. This
change results in modification to the investment process used for the Fund. The
foregoing changes are reflected in the revised Principal Investment Strategies,
Principal Risks, and Fund Management and Compensation sections of the Fund's
prospectus, as set forth below.

Effective May 1, 2010, the following changes are hereby made to the Fund's
prospectus:

The description of the portfolio managers responsible for the Fund's day-to-day
portfolio management, as described under the caption "Fund Management and
Compensation - Investment Manager" is superseded and replaced as follows:

Portfolio Managers. The portfolio managers responsible for the day-to-day
management of the Fund are:

Brian M. Condon, Portfolio Manager

- -    Managed the Fund since May 2010.

- -    Joined the investment manager in May 2010 when it acquired the long-term
     asset management business of Columbia Management Group, where he worked as
     an investment professional since 1999.

- -    Began investment career in 1993.

- -    BA from Bryant College and MS in finance from Bentley College.

Gina K. Mourtzinou, Ph.D., Portfolio Manager

- -    Managed the Fund since 2003.

- -    Joined the investment manager as a portfolio manager and member of the
     Disciplined Equity and Asset Allocation Team in 2002.

- -    Co-founded Dynamic Ideas, LLC, a consulting firm that specialized in the
     development of quantitative tools for the asset management industry, where
     she served as Vice President of Research and Analytics, 1999 to 2002.

- -    Began investment career as a consultant to asset managers in 1996; became
     portfolio manager in 2002.

- -    Ph.D., MIT.

The information under the caption "Principal Investment Strategies" is hereby
superseded and replaced with the following information:

Under normal market conditions, at least 80% of the Fund's net assets are
invested in equity securities of companies listed on U.S. exchanges with market
capitalizations greater than $5 billion at the time of purchase. The Fund will
provide shareholders with at least 60 days' written notice of any change in the
80% policy.

The universe of stocks from which the investment manager, Columbia Management
Investment Advisers, LLC (formerly RiverSource Investments, LLC), selects the
Fund's investments primarily will be those included in the Fund's benchmark, the
S&P 500 Index (the Index). The Fund generally holds fewer stocks than the Index
and may hold securities that are not in the Index.

In pursuit of the Fund's objective, the investment manager uses quantitative
analysis to evaluate the relative attractiveness of potential investments by
considering a variety of factors which may include, among others, valuation,
quality and momentum. Analysis of such factors is designed to identify companies
with:

- -    Attractive valuations, based on factors such as price-to-earnings ratios;

- -    Sound balance sheets; or

- -    Improving outlooks, based on an analysis of return patterns over time.



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 company continues to meet the investment manager's performance
     expectations; or

- -    The security is removed from the Index.

The Fund's investment strategy may involve frequent trading of portfolio
securities. This may cause the Fund to incur higher transaction costs (which may
adversely affect the Fund's performance) and may increase taxable distributions
for shareholders.

The investment manager may use derivatives such as futures, options, swaps and
forward contracts, to produce incremental earnings, to hedge existing positions,
maintain investment efficiency or to increase flexibility.

The information under the caption "Principal Risks" is hereby revised to include
the following:

PORTFOLIO TURNOVER RISK. The investment manager may actively and frequently
trade securities in the Fund's portfolio to carry out its principal strategies.
A high portfolio turnover rate increases transaction costs, which may increase
the Fund's expenses. Frequent and active trading may also cause adverse tax
consequences for investors in the Fund due to an increase in short-term capital
gains.

                                                               S-6263-4 A (5/10)