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ETF · holdings as filed 2026-05-31

What's inside IVOO?

VANGUARD S&P MID-CAP 400 INDEX FUND
Holdings
402
positions in the fund
Top 10
8%
of fund assets
Expense ratio
0.07%
net, per year
Fund size
$6B
total net assets

Top 20 holdings

RankLogoTicker / NameWeight
1
F
FLEXFLEX LTD
1.58%
2
T
TWLOTWILIO INC - A
0.82%
3
F
FTITECHNIPFMC PLC
0.79%
4
C
CWCURTISS-WRIGHT CORP
0.78%
5
N
NVTNVENT ELECTRIC PLC
0.77%
6
S
STRLSTERLING INFRASTRUCTURE INC
0.75%
7
X
XPOXPO INC
0.71%
8
P
PEVERPURE INC-A
0.71%
9
I
ILMNILLUMINA INC
0.71%
10
U
UTHRUNITED THERAPEUTICS CORP
0.68%
11
A
ATIATI INC
0.68%
12
M
MTSIMACOM TECHNOLOGY SOLUTIONS H
0.67%
13
F
FNFABRINET
0.67%
14
C
CRSCARPENTER TECHNOLOGY
0.66%
15
N
NXTNEXTPOWER INC-CL A
0.66%
16
M
MTZMASTEC INC
0.66%
17
M
MKSIMKS INC
0.62%
18
E
ENTGENTEGRIS INC
0.60%
19
O
OKTAOKTA INC
0.59%
20
W
WWDWOODWARD INC
0.59%
Sectors
Top holdings — Information Technology
Your 10 largest positions in this sector
1
F
FLEXFLEX LTD
1.58%
2
T
TWLOTWILIO INC - A
0.82%
3
F
FTITECHNIPFMC PLC
0.79%
4
C
CWCURTISS-WRIGHT CORP
0.78%
5
N
NVTNVENT ELECTRIC PLC
0.77%
6
P
PEVERPURE INC-A
0.71%
7
M
MTSIMACOM TECHNOLOGY SOLUTIONS H
0.67%
8
F
FNFABRINET
0.67%
9
N
NXTNEXTPOWER INC-CL A
0.66%
10
O
OKTAOKTA INC
0.59%
Geography
Top holdings — United States
Your 10 largest positions in this country
1
T
TWLOTWILIO INC - A
0.82%
2
C
CWCURTISS-WRIGHT CORP
0.78%
3
S
STRLSTERLING INFRASTRUCTURE INC
0.75%
4
X
XPOXPO INC
0.71%
5
P
PEVERPURE INC-A
0.71%
6
I
ILMNILLUMINA INC
0.71%
7
U
UTHRUNITED THERAPEUTICS CORP
0.68%
8
A
ATIATI INC
0.68%
9
M
MTSIMACOM TECHNOLOGY SOLUTIONS H
0.67%
10
C
CRSCARPENTER TECHNOLOGY
0.66%
Geography reflects each issuer's registered business address per SEC EDGAR filings where available, falling back to the exchange or listing where no SEC filing exists — not necessarily where a company's stock is primarily listed (e.g. TSMC is classified as Taiwan even though its ADR trades on the NYSE).
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Data source: official SEC Form N-PORT filings (as of 2026-05-31); 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.