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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
WRBY icon
2051
Warby Parker
WRBY
$3.25B
$367K ﹤0.01%
17,408
+3,408
+24% +$84.5K
ATAI icon
2052
AtaiBeckley Inc
ATAI
$2.68B
$366K ﹤0.01%
+103,459
New +$390K
PLPC icon
2053
Preformed Line Products
PLPC
$2.28B
$363K ﹤0.01%
1,341
-2,251
-63% -$575K
AXGN icon
2054
Axogen
AXGN
$2.5B
$363K ﹤0.01%
10,943
-6,860
-39% -$223K
OSBC icon
2055
Old Second Bancorp
OSBC
$1.3B
$361K ﹤0.01%
17,885
+1,744
+11% +$35K
GRND icon
2056
Grindr
GRND
$2.95B
$360K ﹤0.01%
29,814
+3,486
+13% +$41.1K
AVNW icon
2057
Aviat Networks
AVNW
$273M
$359K ﹤0.01%
15,885
+300
+2% +$7.17K
LADR
2058
Ladder Capital
LADR
$1.24B
$357K ﹤0.01%
36,548
+4,354
+14% +$45.8K
STAA icon
2059
STAAR Surgical
STAA
$1.21B
$357K ﹤0.01%
19,082
-874
-4% -$16.7K
FA icon
2060
First Advantage
FA
$4.12B
$357K ﹤0.01%
30,341
+7,349
+32% +$89.9K
FFIN icon
2061
First Financial Bankshares
FFIN
$4.97B
$354K ﹤0.01%
+12,030
New +$379K
PLTK icon
2062
Playtika
PLTK
$1.12B
$354K ﹤0.01%
127,211
-4,389
-3% -$14.4K
DLB icon
2063
Dolby
DLB
$5.79B
$354K ﹤0.01%
5,888
-6,378
-52% -$403K
NOMD icon
2064
Nomad Foods
NOMD
$1.68B
$353K ﹤0.01%
36,738
-98,362
-73% -$1.13M
ASPN icon
2065
Aspen Aerogels
ASPN
$518M
$351K ﹤0.01%
102,676
-17,562
-15% -$59.2K
CCC
2066
CCC Intelligent Solutions
CCC
$4.08B
$350K ﹤0.01%
58,368
-104,841
-64% -$687K
CMCL icon
2067
Caledonia Mining Corp
CMCL
$420M
$349K ﹤0.01%
15,439
-4,606
-23% -$128K
WSFS icon
2068
WSFS Financial
WSFS
$4.15B
$349K ﹤0.01%
+5,327
New +$336K
VIRT icon
2069
Virtu Financial
VIRT
$4.93B
$348K ﹤0.01%
+7,923
New +$309K
KOS icon
2070
Kosmos Energy
KOS
$1.48B
$348K ﹤0.01%
125,172
+99,069
+380% +$186K
SNDA icon
2071
Sonida Senior Living
SNDA
$1.91B
$348K ﹤0.01%
+10,787
New +$361K
SPNT icon
2072
SiriusPoint
SPNT
$2.68B
$347K ﹤0.01%
16,111
+3,644
+29% +$75.1K
BRC icon
2073
Brady Corp
BRC
$4.57B
$345K ﹤0.01%
+4,248
New +$369K
RWT
2074
Redwood Trust
RWT
$594M
$345K ﹤0.01%
61,437
-5,004
-8% -$29K
GO icon
2075
Grocery Outlet
GO
$980M
$344K ﹤0.01%
+48,764
New +$424K
81 82
83
84 85

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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.