Vanguard Institutional Index Fund Institutional Plus Shares (VIIIX) is a Vanguard mutual fund with a 0.02% expense ratio, 504 holdings and $350.3B in net assets. Largest sector: Technology (38%).
Fee
0.02%
prospectus Apr 28, 2026
Net assets
$350.3B
Launched
Jul 7, 1997
Holdings
504
as of Jun 30, 2026
Top 10 weight
36.5%
largest ten holdings
Largest sector
Technology
38.4%
Yield
—
Benchmark
—
VIIIX's holdings are as of Jun 30, 2026 — a mutual fund reports its holdings to the SEC quarterly, one to three months after the date.
Technology
38.4%
Financial Services
11.4%
Communication Services
9.9%
Consumer Cyclical
9.5%
Healthcare
8.9%
Industrials
8.7%
Consumer Defensive
4.6%
Energy
2.9%
Utilities
2.2%
Real Estate
1.8%
Basic Materials
1.6%
1
NVDA
NVIDIA
7.53%
2
AAPL
APPLE
6.61%
3
MSFT
MICROSOFT
4.31%
4
AMZN
AMAZON.COM
3.63%
5
GOOGL
ALPHABET
3.26%
6
AVGO
BROADCOM
2.78%
7
GOOG
ALPHABET CL C
2.60%
8
MU
MICRON TECHNOLOGY
2.02%
9
META
META PLATFORMS
1.92%
10
TSLA
TESLA
1.84%
11
LLY
ELI LILLY
1.48%
12
AMD
ADVANCED MICRO DEVICES
1.47%
13
BRK.B
BERKSHIRE HATHAWAY
1.43%
14
JPM
JPMORGAN CHASE
1.26%
15
INTC
INTEL
1.03%
16
JNJ
JOHNSON + JOHNSON
0.95%
17
AMAT
APPLIED MATERIALS
0.89%
18
XOM
EXXON MOBIL
0.88%
19
V
VISA
0.86%
20
LRCX
LAM RESEARCH
0.84%
21
WMT
WALMART
0.77%
22
CAT
CATERPILLAR
0.76%
23
CSCO
CISCO SYSTEMS
0.72%
24
ABBV
ABBVIE
0.69%
25
COST
COSTCO WHOLESALE
0.65%
1–25 of 504
Funds listed by how much of their largest holdings they share with VIIIX — not a ranking.
Data from Vanguard and its SEC filings; prices and returns from market data. Page updated October 29, 2026. Holdings and figures change over time. For information only — not investment advice.