0000351601 2011-03-01 2012-02-29 0000351601 ric9:S000001588Member 2011-03-01 2012-02-29 Other 2011-10-31 RUSSELL INVESTMENT CO 0000351601 false 2013-01-14 2013-01-14 2012-02-29 RUSSELL INVESTMENT COMPANY Supplement dated January 14, 2013 to PROSPECTUS Dated FEBRUARY 29, 2012 For All Funds Except Russell U.S. Large Cap Equity And Russell U.S. Mid Cap Equity Funds, Which Are Dated JANUARY 17, 2012; Russell Multi-Strategy Alternative Fund, Which Is Dated JUNE 7, 2012; Russell U.S. Strategic Equity Fund, Which Is Dated JUNE 29, 2012; Russell Strategic Call Overwriting Fund, Which Is Dated JULY 27, 2012; And Class A And Class Y Shares Of The Russell U.S. Dynamic Equity Fund, Which Is Dated AUGUST 13, 2012, All As Supplemented Through AUGUST 15, 2012.     RUSSELL INTERNATIONAL DEVELOPED MARKETS FUND RISK/RETURN SUMMARY:   <table style="border-collapse:collapse" border="0" cellpadding="0" cellspacing="0" width="100%"> <tr> <td width="4%"> </td> <td width="4%" valign="top" align="left">(i)</td> <td align="left" valign="top">PRINCIPAL INVESTMENT STRATEGIES: The following sentence replaces the sixth sentence in the sub-section entitled Principal Investment Strategies of the Fund in the Risk/Return Summary section for the Russell International Developed Markets Fund in the Prospectus listed above: </td></tr></table>   <table style="border-collapse:collapse" border="0" cellpadding="0" cellspacing="0" width="100%"> <tr> <td width="4%"> </td> <td width="4%" valign="top" align="left"> </td> <td align="left" valign="top">The Fund employs a multi-style (growth, value, market-oriented and defensive) and multi-manager approach whereby portions of the Fund are allocated to different money managers who employ distinct investment styles. </td></tr></table> RUSSELL INVESTMENT COMPANY Supplement dated January 14, 2013 to PROSPECTUS Dated FEBRUARY 29, 2012 For All Funds Except Russell U.S. Large Cap Equity And Russell U.S. Mid Cap Equity Funds, Which Are Dated JANUARY 17, 2012; Russell Multi-Strategy Alternative Fund, Which Is Dated JUNE 7, 2012; Russell U.S. Strategic Equity Fund, Which Is Dated JUNE 29, 2012; Russell Strategic Call Overwriting Fund, Which Is Dated JULY 27, 2012; And Class A And Class Y Shares Of The Russell U.S. Dynamic Equity Fund, Which Is Dated AUGUST 13, 2012, All As Supplemented Through AUGUST 15, 2012.     RUSSELL INTERNATIONAL DEVELOPED MARKETS FUND RISK/RETURN SUMMARY:   <table style="border-collapse:collapse" border="0" cellpadding="0" cellspacing="0" width="100%"> <tr> <td width="4%"> </td> <td width="4%" valign="top" align="left">(i)</td> <td align="left" valign="top">PRINCIPAL INVESTMENT STRATEGIES: The following sentence replaces the sixth sentence in the sub-section entitled Principal Investment Strategies of the Fund in the Risk/Return Summary section for the Russell International Developed Markets Fund in the Prospectus listed above: </td></tr></table>   <table style="border-collapse:collapse" border="0" cellpadding="0" cellspacing="0" width="100%"> <tr> <td width="4%"> </td> <td width="4%" valign="top" align="left"> </td> <td align="left" valign="top">The Fund employs a multi-style (growth, value, market-oriented and defensive) and multi-manager approach whereby portions of the Fund are allocated to different money managers who employ distinct investment styles. </td></tr></table>