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State of Wisconsin Investment Board

State of Wisconsin Investment Board Portfolio holdings

AUM $43.7B
1-Year Est. Return 27.76%
This Fund
S&P 500
This Quarter Est. Return
-0.92%
1 Year Est. Return
+27.76%
3 Year Est. Return
+95.56%
5 Year Est. Return
+123.77%
10 Year Est. Return
+486.44%
AUM
$43.7B
AUM Growth
-$1.04B
Cap. Flow
+$646M
Cap. Flow %
1.48%
Top 10 Hldgs %
26.7%
Holding
2,643
New
278
Increased
1,112
Reduced
954
Closed
152

Top Buys

Rank Stock Value
1
HEI.A icon
HEICO Corp Class A
HEI.A
+$108M
2
Z icon
Zillow
Z
+$106M
3
CCOM
Simplify Chinese Commodities Strategy No K-1 ETF
CCOM
+$104M
4
AZN icon
AstraZeneca
AZN
+$96.2M
5
NVDA icon
NVIDIA
NVDA
+$77.9M

Top Sells

Rank Stock Value
1
RSP icon
Invesco S&P 500 Equal Weight ETF
RSP
+$374M
2
XRT icon
State Street SPDR S&P Retail ETF
XRT
+$54M
3
JAAA icon
Janus Henderson AAA CLO ETF
JAAA
+$50.6M
4
BIP icon
Brookfield Infrastructure Partners
BIP
+$43.5M
5
ZG icon
Zillow
ZG
+$40.6M

Sector Composition

Rank Sector Weight
1 Technology 25.53%
2 Financials 12.43%
3 Communication Services 9.92%
4 Industrials 9.52%
5 Consumer Discretionary 8.86%
Name Market Value Portfolio Weight Shares or Principal Change
in Stake 		Capital Flow
YETI icon
1126
Yeti Holdings
YETI
$3.96B
$3.37M 0.01%
92,156
+50,477
+121% +$2.22M
ADEA icon
1127
Adeia
ADEA
$3.12B
$3.34M 0.01%
138,907
-8,280
-6% -$168K
ELF icon
1128
e.l.f. Beauty
ELF
$5.82B
$3.3M 0.01%
54,458
-6,080
-10% -$494K
MAT icon
1129
Mattel
MAT
$4.24B
$3.29M 0.01%
226,183
+28,358
+14% +$517K
EYE icon
1130
National Vision
EYE
$1.8B
$3.29M 0.01%
126,849
+17,795
+16% +$484K
UEC icon
1131
Uranium Energy
UEC
$5.6B
$3.28M 0.01%
243,308
-50,632
-17% -$781K
PRCT icon
1132
Procept Biorobotics
PRCT
$1.2B
$3.28M 0.01%
131,235
+47,516
+57% +$1.34M
SUPN icon
1133
Supernus Pharmaceuticals
SUPN
$2.73B
$3.28M 0.01%
63,383
-1,254
-2% -$63.9K
ICUI icon
1134
ICU Medical
ICUI
$4.6B
$3.27M 0.01%
25,316
-1,221
-5% -$176K
ENSG icon
1135
The Ensign Group
ENSG
$10.6B
$3.27M 0.01%
16,213
+567
+4% +$111K
PTGX icon
1136
Protagonist Therapeutics
PTGX
$9.46B
$3.24M 0.01%
30,767
-4,019
-12% -$356K
OI icon
1137
O-I Glass
OI
$1.1B
$3.23M 0.01%
307,061
+142,314
+86% +$1.96M
BYD icon
1138
Boyd Gaming
BYD
$6.09B
$3.21M 0.01%
39,081
+68
+0.2% +$5.71K
APLS
1139
DELISTED
Apellis Pharmaceuticals
APLS
$3.21M 0.01%
79,680
+12,764
+19% +$275K
ALH
1140
Alliance Laundry Holdings
ALH
$5.49B
$3.2M 0.01%
154,386
+19,324
+14% +$420K
RYTM icon
1141
Rhythm Pharmaceuticals
RYTM
$7.89B
$3.18M 0.01%
36,571
+492
+1% +$47.8K
ZION icon
1142
Zions Bancorporation
ZION
$10.3B
$3.16M 0.01%
54,913
+2,061
+4% +$121K
MIRM icon
1143
Mirum Pharmaceuticals
MIRM
$6.08B
$3.15M 0.01%
34,106
-12,100
-26% -$1.14M
FLYW icon
1144
Flywire
FLYW
$2.19B
$3.14M 0.01%
269,930
-10,478
-4% -$132K
ADTN icon
1145
Adtran
ADTN
$623M
$3.14M 0.01%
249,706
-20,883
-8% -$212K
QBTS icon
1146
D-Wave Quantum Inc. Common Stock
QBTS
$7.51B
$3.13M 0.01%
216,748
+6,675
+3% +$141K
IWM icon
1147
iShares Russell 2000 ETF
IWM
$82.9B
$3.13M 0.01%
12,603
-46,697
-79% -$12M
STN icon
1148
Stantec
STN
$8.41B
$3.1M 0.01%
36,000
-3,900
-10% -$367K
OPCH icon
1149
Option Care Health
OPCH
$3.59B
$3.1M 0.01%
115,182
+11,474
+11% +$372K
KYMR icon
1150
Kymera Therapeutics
KYMR
$8.89B
$3.1M 0.01%
37,185
+10,672
+40% +$845K
44 45
46
47 48

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State of Wisconsin Investment Board's Q1 2026 Portfolio in Review

As of Q1 2026, State of Wisconsin Investment Board held 2,643 positions worth $43.7B, down 2.3% from $44.7B the previous quarter. Its ten largest holdings account for 27% of the portfolio.

State of Wisconsin Investment Board's Q1 2026 filing shows 278 new, 1,112 increased, 954 reduced and 152 closed positions. Its largest new stake was Simplify Chinese Commodities Strategy No K-1 ETF: 4,202,200 shares worth $104M. The largest sale was Invesco S&P 500 Equal Weight ETF, an estimated $374M.

By sector, the portfolio is most concentrated in Technology at 26% of assets, down from 27% a quarter earlier, followed by Financials and Communication Services.

  • State of Wisconsin Investment Board's largest Q1 2026 buy was Simplify Chinese Commodities Strategy No K-1 ETF: 4,202,200 shares worth $104M.
  • State of Wisconsin Investment Board added most to HEICO Corp Class A in Q1 2026, an estimated $108M increase.
  • State of Wisconsin Investment Board's biggest Q1 2026 reduction was Invesco S&P 500 Equal Weight ETF, cutting an estimated $374M.
  • State of Wisconsin Investment Board fully exited State Street SPDR S&P Retail ETF in Q1 2026, selling an estimated $54M.
  • State of Wisconsin Investment Board's ten largest holdings make up 27% of its $43.7B portfolio in Q1 2026.
  • State of Wisconsin Investment Board opened 278 new positions and closed 152 in Q1 2026.
  • State of Wisconsin Investment Board's portfolio value fell 2.3% quarter-over-quarter to $43.7B.

Based on State of Wisconsin Investment Board's 13F filing for Q1 2026, filed 15 May 2026.