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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
-2.67%
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
$38.7B
AUM Growth
-$490M
Cap. Flow
+$1.41B
Cap. Flow %
3.64%
Top 10 Hldgs %
25.43%
Holding
2,386
New
123
Increased
1,235
Reduced
836
Closed
145

Top Buys

Rank Stock Value
1
RSP icon
Invesco S&P 500 Equal Weight ETF
RSP
+$795M
2
GOOGL icon
Alphabet (Google) Class A
GOOGL
+$386M
3
EFFE
Harbor Osmosis Emerging Markets Resource Efficient ETF
EFFE
+$105M
4
BRK.A icon
Berkshire Hathaway Class A
BRK.A
+$90.4M
5
EFFI
Harbor Osmosis International Resource Efficient ETF
EFFI
+$58.1M

Top Sells

Rank Stock Value
1
IBIT icon
iShares Bitcoin Trust
IBIT
+$322M
2
USHY icon
iShares Broad USD High Yield Corporate Bond ETF
USHY
+$85.2M
3
HEI.A icon
HEICO Corp Class A
HEI.A
+$34.6M
4
SPY icon
State Street SPDR S&P 500 ETF Trust
SPY
+$26.5M
5
ALTR
Altair Engineering Inc
ALTR
+$21.6M

Sector Composition

Rank Sector Weight
1 Technology 24.98%
2 Financials 13.13%
3 Communication Services 10.56%
4 Healthcare 10.1%
5 Consumer Discretionary 9.45%
Name Market Value Portfolio Weight Shares or Principal Change
in Stake 		Capital Flow
LRN icon
1151
Stride
LRN
$3.27B
$2.6M 0.01%
20,526
+11,888
+138% +$1.5M
AUPH icon
1152
Aurinia Pharmaceuticals
AUPH
$2.06B
$2.59M 0.01%
322,750
+40,738
+14% +$330K
REXR icon
1153
Rexford Industrial Realty
REXR
$8.11B
$2.59M 0.01%
66,180
+10,354
+19% +$415K
HRI icon
1154
Herc Holdings
HRI
$5.64B
$2.59M 0.01%
19,286
+9,997
+108% +$1.7M
MNDY icon
1155
monday.com
MNDY
$3.99B
$2.58M 0.01%
10,600
-3,800
-26% -$1M
WLK icon
1156
Westlake Corp
WLK
$10.2B
$2.57M 0.01%
25,647
+3,400
+15% +$377K
MTG icon
1157
MGIC Investment
MTG
$6.29B
$2.54M 0.01%
102,429
-3,953
-4% -$95.7K
CON
1158
Concentra Group Holdings
CON
$4.4B
$2.52M 0.01%
116,226
+321
+0.3% +$7.06K
ENSG icon
1159
The Ensign Group
ENSG
$10.6B
$2.51M 0.01%
19,409
-491
-2% -$65K
BLBD icon
1160
Blue Bird Corp
BLBD
$2.04B
$2.51M 0.01%
77,443
+23,538
+44% +$861K
VKTX icon
1161
Viking Therapeutics
VKTX
$3.84B
$2.5M 0.01%
103,661
+21,697
+26% +$686K
ACLX
1162
DELISTED
Arcellx
ACLX
$2.5M 0.01%
38,103
+3,771
+11% +$255K
ALK icon
1163
Alaska Air
ALK
$5.3B
$2.48M 0.01%
50,388
+47,272
+1,517% +$3.1M
ENVX icon
1164
Enovix
ENVX
$966M
$2.47M 0.01%
384,982
+107,379
+39% +$956K
ARCB icon
1165
ArcBest
ARCB
$3.14B
$2.47M 0.01%
34,963
+30,104
+620% +$2.61M
CAR icon
1166
Avis
CAR
$4.93B
$2.47M 0.01%
32,506
+1,149
+4% +$92.3K
COHU icon
1167
Cohu
COHU
$2.76B
$2.47M 0.01%
167,687
+19,149
+13% +$398K
FORM icon
1168
FormFactor
FORM
$10.1B
$2.45M 0.01%
86,707
+10,024
+13% +$368K
PRGO icon
1169
Perrigo
PRGO
$1.76B
$2.44M 0.01%
87,114
-173
-0.2% -$4.49K
FIVN icon
1170
FIVE9
FIVN
$2.53B
$2.43M 0.01%
89,619
+16,524
+23% +$606K
WIX icon
1171
WIX.com
WIX
$3.35B
$2.43M 0.01%
14,878
-1,400
-9% -$291K
IVZ icon
1172
Invesco
IVZ
$13.9B
$2.43M 0.01%
160,019
+70,202
+78% +$1.2M
W icon
1173
Wayfair
W
$13.9B
$2.42M 0.01%
75,513
-4,324
-5% -$180K
SRRK icon
1174
Scholar Rock
SRRK
$6.55B
$2.41M 0.01%
74,891
+33,907
+83% +$1.3M
HROW icon
1175
Harrow
HROW
$1.48B
$2.4M 0.01%
90,353
+1,724
+2% +$51.6K
45 46
47
48 49

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LP
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HF
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State of Wisconsin Investment Board's Q1 2025 Portfolio in Review

As of Q1 2025, State of Wisconsin Investment Board held 2,386 positions worth $38.7B, down 1.2% from $39.2B the previous quarter. Its ten largest holdings account for 25% of the portfolio.

State of Wisconsin Investment Board deployed $1.41B of net new capital in Q1 2025, opening 123 new positions and adding to 1,235 existing holdings. Its largest new stake was Harbor Osmosis Emerging Markets Resource Efficient ETF: 5,140,000 shares worth $106M.

By sector, the portfolio is most concentrated in Technology at 25% of assets, down from 28% a quarter earlier, followed by Financials and Communication Services.

On the sell side, the largest reduction was HEICO Corp Class A, an estimated $34.6M trimmed.

  • State of Wisconsin Investment Board's largest Q1 2025 buy was Harbor Osmosis Emerging Markets Resource Efficient ETF: 5,140,000 shares worth $106M.
  • State of Wisconsin Investment Board added most to Invesco S&P 500 Equal Weight ETF in Q1 2025, an estimated $795M increase.
  • State of Wisconsin Investment Board's biggest Q1 2025 reduction was HEICO Corp Class A, cutting an estimated $34.6M.
  • State of Wisconsin Investment Board fully exited iShares Bitcoin Trust in Q1 2025, selling an estimated $322M.
  • State of Wisconsin Investment Board's ten largest holdings make up 25% of its $38.7B portfolio in Q1 2025.
  • State of Wisconsin Investment Board opened 123 new positions and closed 145 in Q1 2025.
  • State of Wisconsin Investment Board's portfolio value fell 1.2% quarter-over-quarter to $38.7B.

Based on State of Wisconsin Investment Board's 13F filing for Q1 2025, filed 15 May 2025.