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ETF · holdings as filed 2026-03-31

What's inside VO?

VANGUARD MID-CAP INDEX FUND
Holdings
291
positions in the fund
Top 10
9%
of fund assets
Expense ratio
—
net, per year
Fund size
$198B
total net assets
Top 15 holdings
1
VRTVERTIV HOLDINGS CO-A
1.03%
2
HWMHOWMET AEROSPACE INC
1.01%
3
WDCWESTERN DIGITAL CORP
1.00%
4
CEGCONSTELLATION ENERGY
0.94%
5
STXSEAGATE TECHNOLOGY HOLDINGS
0.93%
6
PWRQUANTA SERVICES INC
0.89%
7
SLBSLB LTD
0.84%
8
CMICUMMINS INC
0.81%
9
VLOVALERO ENERGY CORP
0.80%
10
PSXPHILLIPS 66
0.80%
11
MPCMARATHON PETROLEUM CORP
0.78%
12
MSIMOTOROLA SOLUTIONS INC
0.78%
13
CRHCRH PLC
0.77%
14
ROSTROSS STORES INC
0.76%
15
GMGENERAL MOTORS CO
0.73%
Sectors
1Information Technology
23%
2Financials
17%
3Health Care
12%
4Utilities
12%
5Consumer Discretionary
10%
6Industrials
10%
7Materials
6%
8Energy
5%
Geography
1United States
93%
2Ireland
3%
3Unclassified
1%
4Liberia
1%
5Canada
0%
6Switzerland
0%
7Bermuda
0%
8Panama
0%
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Data source: official SEC Form N-PORT filings (as of 2026-03-31); expense ratio from SEC prospectus (risk/return) filings. Fund holdings are disclosed quarterly and may reflect a 60-day reporting delay.
Informational and educational only — not investment advice.