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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
MOS icon
926
The Mosaic Company
MOS
$7.46B
$5.77M 0.01%
226,334
-31,070
-12% -$852K
NFG icon
927
National Fuel Gas
NFG
$7.66B
$5.76M 0.01%
61,266
+9,581
+19% +$836K
ESAB icon
928
ESAB
ESAB
$5.87B
$5.73M 0.01%
59,308
-21,145
-26% -$2.45M
BAM icon
929
Brookfield Asset Management
BAM
$84.9B
$5.73M 0.01%
129,182
-14,700
-10% -$718K
EPAM icon
930
EPAM Systems
EPAM
$4.86B
$5.7M 0.01%
42,100
-1,520
-3% -$260K
CVCO icon
931
Cavco Industries
CVCO
$4.45B
$5.7M 0.01%
11,767
-806
-6% -$458K
IRTC icon
932
iRhythm Holdings
IRTC
$4.21B
$5.67M 0.01%
48,050
-3,103
-6% -$448K
APLD icon
933
Applied Digital
APLD
$8.31B
$5.66M 0.01%
238,450
+56,183
+31% +$1.76M
TTC icon
934
Toro Company
TTC
$9.35B
$5.66M 0.01%
60,578
-8,254
-12% -$778K
TREE icon
935
LendingTree
TREE
$447M
$5.61M 0.01%
130,867
-17,617
-12% -$843K
RBA icon
936
RB Global
RBA
$17.2B
$5.59M 0.01%
58,523
-6,400
-10% -$678K
MRCY icon
937
Mercury Systems
MRCY
$6.53B
$5.58M 0.01%
76,505
+20,317
+36% +$1.77M
GFL icon
938
GFL Environmental
GFL
$15B
$5.57M 0.01%
133,946
-9,200
-6% -$394K
ECPG icon
939
Encore Capital Group
ECPG
$2.1B
$5.57M 0.01%
79,428
-5,151
-6% -$317K
IAG icon
940
IAMGOLD
IAG
$9.27B
$5.57M 0.01%
297,070
+282,282
+1,909% +$5.6M
SWX icon
941
Southwest Gas
SWX
$6.69B
$5.55M 0.01%
63,830
-15,629
-20% -$1.33M
NIC icon
942
Nicolet Bankshares
NIC
$3.64B
$5.54M 0.01%
37,258
+32,930
+761% +$4.78M
SNX icon
943
TD Synnex
SNX
$20.7B
$5.52M 0.01%
32,716
+157
+0.5% +$24.7K
GTES icon
944
Gates Industrial Corporation Ltd.
GTES
$7.24B
$5.52M 0.01%
244,105
-27,035
-10% -$657K
PATK icon
945
Patrick Industries
PATK
$2.87B
$5.51M 0.01%
49,621
-8,657
-15% -$1.07M
HLIT icon
946
Harmonic Inc
HLIT
$1.27B
$5.5M 0.01%
612,931
-109,044
-15% -$1.08M
OGE icon
947
OGE Energy
OGE
$9.67B
$5.49M 0.01%
114,396
-8,014
-7% -$367K
SOLV icon
948
Solventum
SOLV
$14.4B
$5.45M 0.01%
83,487
+2,954
+4% +$219K
EXLS icon
949
EXL Service
EXLS
$5.25B
$5.44M 0.01%
178,504
-10,801
-6% -$373K
ESE icon
950
ESCO Technologies
ESE
$8.5B
$5.43M 0.01%
19,284
-566
-3% -$143K
36 37
38
39 40

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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.