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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
BMI icon
1026
Badger Meter
BMI
$3.98B
$4.52M 0.01%
29,674
+3,550
+14% +$557K
MIR icon
1027
Mirion Technologies
MIR
$3.74B
$4.51M 0.01%
242,812
+16,278
+7% +$367K
AGX icon
1028
Argan
AGX
$8.28B
$4.48M 0.01%
8,223
-581
-7% -$237K
CORZ icon
1029
Core Scientific
CORZ
$6.76B
$4.48M 0.01%
299,305
-52,885
-15% -$902K
TRI icon
1030
Thomson Reuters
TRI
$43.4B
$4.46M 0.01%
48,771
-5,415
-10% -$571K
ATMU icon
1031
Atmus Filtration Technologies
ATMU
$4.45B
$4.45M 0.01%
78,344
-4,891
-6% -$289K
STLA icon
1032
Stellantis
STLA
$20.9B
$4.44M 0.01%
636,144
-70,082
-10% -$587K
IONQ icon
1033
IonQ
IONQ
$14.8B
$4.44M 0.01%
153,976
+5,188
+3% +$199K
RCI icon
1034
Rogers Communications
RCI
$18.7B
$4.41M 0.01%
115,033
-12,800
-10% -$488K
SWK icon
1035
Stanley Black & Decker
SWK
$15.3B
$4.4M 0.01%
61,933
-6,900
-10% -$554K
NHI icon
1036
National Health Investors
NHI
$3.65B
$4.39M 0.01%
54,345
+8,184
+18% +$682K
VRNS icon
1037
Varonis Systems
VRNS
$4.87B
$4.39M 0.01%
204,600
-671
-0.3% -$18.2K
ST icon
1038
Sensata Technologies
ST
$6.74B
$4.38M 0.01%
124,371
+116,424
+1,465% +$4.12M
DORM icon
1039
Dorman Products
DORM
$4.08B
$4.37M 0.01%
41,880
+3,104
+8% +$370K
ECVT icon
1040
Ecovyst
ECVT
$1.2B
$4.35M 0.01%
338,599
-196,813
-37% -$2.22M
UGI icon
1041
UGI
UGI
$7.35B
$4.35M 0.01%
119,351
-14,446
-11% -$544K
ANF icon
1042
Abercrombie & Fitch
ANF
$4.91B
$4.34M 0.01%
47,526
+9,047
+24% +$880K
BRZE icon
1043
Braze
BRZE
$2.9B
$4.34M 0.01%
183,723
-3,864
-2% -$83.6K
LAZ icon
1044
Lazard
LAZ
$4.22B
$4.31M 0.01%
101,551
-5,060
-5% -$248K
AIP icon
1045
Arteris
AIP
$1.46B
$4.31M 0.01%
262,346
-26,199
-9% -$415K
SII
1046
Sprott
SII
$2.89B
$4.31M 0.01%
+30,314
New +$4.06M
UAL icon
1047
United Airlines
UAL
$41.9B
$4.3M 0.01%
46,755
-12,870
-22% -$1.35M
SMG icon
1048
ScottsMiracle-Gro
SMG
$3.61B
$4.3M 0.01%
70,715
-4,455
-6% -$288K
BXP icon
1049
Boston Properties
BXP
$11B
$4.3M 0.01%
82,855
-5,968
-7% -$359K
PENG
1050
Penguin Solutions Inc
PENG
$2.88B
$4.29M 0.01%
243,981
-12,122
-5% -$231K
40 41
42
43 44

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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.