EDGAR Filing Documents for 0000932471-18-005291

Form N-CSR - Certified Shareholder Report:

SEC Accession No. 0000932471-18-005291

Filing Date

2018-03-01

Accepted

2018-03-01 10:00:15

Documents

Period of Report

2017-12-31

Effectiveness Date

2018-03-01

Document Format Files

Seq	Description	Document	Type	Size
1		institutionalfinal.htm	N-CSR	1870004
2		institutionalindex_cert302.htm	EX-99.CERT	18155
3		institutionalindex_cert906.htm	EX-99.906 CERT	15221
4		institutionalindexx10x1.jpg	GRAPHIC	4052
5		institutionalindexx12x1.jpg	GRAPHIC	5483
6		institutionalindexx13x1.jpg	GRAPHIC	9526
7		institutionalindexx1x1.jpg	GRAPHIC	9783
8		institutionalindexx44x1.jpg	GRAPHIC	2543
9		institutionalindexx4x1.jpg	GRAPHIC	2697
10		institutionalindexx7x1.jpg	GRAPHIC	3272
11		insttotalstockmarketindex1x1.jpg	GRAPHIC	9181
12		insttotalstockmarketindex4x1.jpg	GRAPHIC	2666
13		insttotalstockmarketindex7x1.jpg	GRAPHIC	3412
14		insttotalstockmarketindx10x1.jpg	GRAPHIC	3856
15		insttotalstockmarketindx11x1.jpg	GRAPHIC	5115
16		insttotalstockmarketindx12x1.jpg	GRAPHIC	10112
17		insttotalstockmarketindx76x1.jpg	GRAPHIC	2530
18		codeofethics_2017.htm	EX-99.CODE ETH	16157
	Complete submission text file	0000932471-18-005291.txt		2026009

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 6106691000

VANGUARD INSTITUTIONAL INDEX FUNDS (Filer) CIK: 0000862084 (see all company filings)