coverletterxbrl497.htm - Generated by SEC Publisher for SEC Filing


August 16, 2019




U.S. Securities and Exchange Commission
100 F Street, N.E.
Washington, DC 20549


Re:	Vanguard Index Funds
	File No. 2-56846


Commissioners:

Pursuant to Rule 497(e) under the Securities Act of 1933, we hereby file exhibits containing
interactive data format risk/return summary information that reflects the risk/return summary
information in the supplement dated July 29, 2019, filed pursuant to Rule 497(e), for the Vanguard
Growth Index Fund, series of the above mentioned Trust.
If you have any questions or comments concerning the enclosed Amendment, please contact me at
(610) 669-7310.

Sincerely,

Alexander F. Smith

Associate Counsel

The Vanguard Group, Inc.

Enclosures

cc: Lisa N. Larkin

U.S. Securities and Exchange Commission