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Filing Detail
Form 497K - Summary Prospectus for certain open-end management investment companies filed pursuant to Securities Act Rule 497(K):
SEC Accession No. 0000932471-10-003591
Filing Date
2010-12-13
Accepted
2010-12-13 12:59:37
Documents
3
Effectiveness Date
2010-12-13

Document Format Files

Seq Description Document Type Size
1 EXTENDED MARKET SUMMARY extendedmarketindexfundspi85.htm 497K 39282
3 extendedmarketindexfundsx1x1.jpg GRAPHIC 2502
4 extendedmarketindexfundsx4x1.jpg GRAPHIC 7754
  Complete submission text file 0000932471-10-003591.txt   55917

Series and Classes/Contracts Information:

Existing
  Status Name Ticker Symbol
CIK 0000036405      
Series S000002841   Vanguard Extended Market Index Fund
Class/Contract C000007781   Institutional Shares VIEIX
Class/Contract C000096110   Institutional Plus Shares VEMPX
Mailing Address PO BOX 2600 V26 VALLEY FORGE PA 19482
Business Address PO BOX 2600 V26 VALLEY FORGE PA 19482 6106696295
VANGUARD INDEX FUNDS (Filer) CIK: 0000036405 (see all company filings)

IRS No.: 231999755 | State of Incorp.: DE | Fiscal Year End: 1231
Type: 497K | Act: 33 | File No.: 002-56846 | Film No.: 101247313