Index Funds
1155 Kelly Johnson Boulevard, Suite 111
Colorado Springs, Colorado 80920
February 7, 2018
VIA EDGAR
U.S. Securities and Exchange Commission
Division of Investment Management
100 F Street, N.E.
Washington, DC 20549
| Re: | Index Funds |
File Nos. 333-129930, 811-21836
Filing pursuant to Rule 497(e)
To Whom It May Concern:
Enclosed for filing pursuant to Rule 497(e) of the Securities Act of 1933, as amended, (the “1933 Act”) are exhibits containing interactive data format risk/return summary information that reflects the risk/return summary information in the supplement to the Prospectus dated July 28, 2017, for the Index Funds S&P 500® Equal Weight as filed pursuant to Rule 497(e) under the 1933 Act on January 19, 2018 (Accession Number: 0001398344-18-000763).
If you have any questions regarding this filing, please contact Megan Hadley Koehler, with the Registrant’s service provider, ALPS Fund Services, Inc., at (720) 917-0585 or via email at megan.koehler@alpsinc.com.
Sincerely,
| /s/ Michael G. Willis | |
| Michael G. Willis | |
| President |
Enclosure
| cc: | Kevin Teng, Esq. |
Davis Graham & Stubbs LLP