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Form EFFECT - Notice of Effectiveness:
SEC Accession No. 9999999995-06-001261
Accepted
2006-08-18 00:15:11
Documents
1
Effectiveness Date
2006-08-17
Registration Form
485APOS
Reference AccNo
0000932471-06-001179

Document Format Files

Seq Description Document Type Size
1 primary_doc.html EFFECT  
1 primary_doc.xml EFFECT 2069
  Complete submission text file 9999999995-06-001261.txt   4610

Series and Classes/Contracts Information:

Existing
  Status Name Ticker Symbol
CIK 0000862084      
Series S000002853   Vanguard Institutional Index Fund
Class/Contract C000007825   INSTITUTIONAL SHARES VINIX
Class/Contract C000007826   INSTITUTIONAL PLUS SHARES VIIIX
  Status Name Ticker Symbol
CIK 0000862084      
Series S000002855   Vanguard Institutional Total Stock Market Index Fund
Class/Contract C000007828   INSTITUTIONAL SHARES VITNX
Class/Contract C000007829   INSTITUTIONAL PLUS SHARES VITPX
Mailing Address PO BOX 2600 V26 VALLEY FORGE PA 19482
Business Address PO BOX 2600 V26 VALLEY FORGE PA 19482 6106696295
VANGUARD INSTITUTIONAL INDEX FUND (Filer) CIK: 0000862084 (see all company filings)

IRS No.: 000000000 | State of Incorp.: DE | Fiscal Year End: 1231
Type: EFFECT | Act: 33 | File No.: 033-34494 | Film No.: 061042135