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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
BIIB icon
526
Biogen
BIIB
$31.1B
$12.1M 0.03%
88,576
+8,435
+11% +$1.21M
RVTY icon
527
Revvity
RVTY
$13.1B
$12.1M 0.03%
114,369
+13,475
+13% +$1.55M
EVRG icon
528
Evergy
EVRG
$19.3B
$12.1M 0.03%
175,321
-8,412
-5% -$550K
CCL icon
529
Carnival Corporation Ltd
CCL
$38.9B
$12.1M 0.03%
617,974
+44,155
+8% +$1.05M
WDC icon
530
Western Digital
WDC
$168B
$12M 0.03%
297,058
-95,287
-24% -$4.52M
AYI icon
531
Acuity Brands
AYI
$10.8B
$12M 0.03%
45,560
+4,031
+10% +$1.22M
ESAB icon
532
ESAB
ESAB
$5.29B
$12M 0.03%
102,920
-2,094
-2% -$255K
AMED
533
DELISTED
Amedisys
AMED
$11.9M 0.03%
128,441
+14,061
+12% +$1.3M
LYV icon
534
Live Nation Entertainment
LYV
$43.3B
$11.9M 0.03%
91,085
-9,112
-9% -$1.24M
PCOR icon
535
Procore
PCOR
$9.45B
$11.9M 0.03%
180,138
+456
+0.3% +$34.4K
BALL icon
536
Ball Corp
BALL
$16.4B
$11.9M 0.03%
228,095
+17,794
+8% +$934K
RS icon
537
Reliance Steel & Aluminium
RS
$21.7B
$11.9M 0.03%
41,109
+1,909
+5% +$546K
CUK
538
DELISTED
Carnival PLC
CUK
$11.9M 0.03%
676,208
– –
KMPR icon
539
Kemper
KMPR
$1.59B
$11.8M 0.03%
177,254
+15,673
+10% +$1.04M
AIT icon
540
Applied Industrial Technologies
AIT
$13.2B
$11.8M 0.03%
52,437
+325
+0.6% +$80.1K
RRX icon
541
Regal Rexnord
RRX
$11.4B
$11.8M 0.03%
103,783
+8,774
+9% +$1.22M
HOMB icon
542
Home BancShares
HOMB
$6.27B
$11.8M 0.03%
416,861
-1,886
-0.5% -$55.1K
WCC
543
WESCO International
WCC
$17.5B
$11.7M 0.03%
75,642
+933
+1% +$167K
MKC icon
544
McCormick & Company Non-Voting
MKC
$14.6B
$11.7M 0.03%
142,337
+3,349
+2% +$262K
FDS icon
545
Factset
FDS
$10.2B
$11.7M 0.03%
25,739
+609
+2% +$277K
ROL icon
546
Rollins
ROL
$17.4B
$11.6M 0.03%
215,299
-13,505
-6% -$678K
KFY icon
547
Korn Ferry
KFY
$4.36B
$11.6M 0.03%
170,974
-13,090
-7% -$884K
MTZ icon
548
MasTec
MTZ
$23B
$11.6M 0.03%
99,245
-6,252
-6% -$844K
INVH icon
549
Invitation Homes
INVH
$18B
$11.5M 0.03%
330,756
-52,924
-14% -$1.71M
ON icon
550
ON Semiconductor
ON
$31.8B
$11.5M 0.03%
283,254
+47,830
+20% +$2.41M
20 21
22
23 24

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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.