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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
MGEE icon
1476
MGE Energy Inc
MGEE
$3.08B
$1.31M ﹤0.01%
16,971
-8,855
-34% -$697K
EMCS
1477
Xtrackers MSCI Emerging Markets Select ETF
EMCS
$999M
$1.31M ﹤0.01%
35,286
– –
KOP icon
1478
Koppers
KOP
$985M
$1.31M ﹤0.01%
33,744
+16,326
+94% +$546K
GTLS
1479
DELISTED
Chart Industries
GTLS
$1.3M ﹤0.01%
6,310
-10,952
-63% -$2.27M
PLUS icon
1480
ePlus
PLUS
$2.34B
$1.3M ﹤0.01%
+17,322
New +$1.42M
SHC icon
1481
Sotera Health
SHC
$5.38B
$1.3M ﹤0.01%
90,678
+26,386
+41% +$438K
NSA
1482
DELISTED
National Storage Affiliates Trust
NSA
$1.3M ﹤0.01%
34,359
-1,997
-5% -$67.5K
SLM icon
1483
SLM Corp
SLM
$5.15B
$1.3M ﹤0.01%
60,555
+16,970
+39% +$401K
FLR icon
1484
Fluor
FLR
$7.96B
$1.3M ﹤0.01%
27,772
+5,634
+25% +$262K
OTTR icon
1485
Otter Tail
OTTR
$3.94B
$1.29M ﹤0.01%
14,751
-7,650
-34% -$662K
REX icon
1486
REX American Resources
REX
$1.41B
$1.29M ﹤0.01%
28,327
+10,657
+60% +$386K
BXC icon
1487
BlueLinx
BXC
$706M
$1.29M ﹤0.01%
23,816
-568
-2% -$37.3K
PHIN icon
1488
Phinia Inc
PHIN
$2.74B
$1.29M ﹤0.01%
18,831
-54,264
-74% -$3.79M
RH icon
1489
RH
RH
$3.71B
$1.29M ﹤0.01%
9,210
+2,533
+38% +$462K
ITHA
1490
ITHAX Acquisition Corp III
ITHA
$309M
$1.29M ﹤0.01%
+130,000
New +$1.29M
HCI icon
1491
HCI Group
HCI
$2.41B
$1.28M ﹤0.01%
8,307
+2,746
+49% +$450K
MASI
1492
DELISTED
Masimo
MASI
$1.28M ﹤0.01%
7,189
-12,301
-63% -$1.93M
RCUS icon
1493
Arcus Biosciences
RCUS
$3.64B
$1.28M ﹤0.01%
59,197
+362
+0.6% +$7.82K
ATKR icon
1494
Atkore
ATKR
$3.16B
$1.28M ﹤0.01%
21,675
+8,887
+69% +$578K
TYRA icon
1495
Tyra Biosciences
TYRA
$1.58B
$1.27M ﹤0.01%
33,258
-5,765
-15% -$187K
IMVT icon
1496
Immunovant
IMVT
$8.25B
$1.27M ﹤0.01%
51,022
+12,103
+31% +$313K
RRC icon
1497
Range Resources
RRC
$8.95B
$1.26M ﹤0.01%
27,832
-12,065
-30% -$470K
HMN icon
1498
Horace Mann Educators
HMN
$2.11B
$1.26M ﹤0.01%
29,430
+2,028
+7% +$87.7K
ICL icon
1499
ICL Group
ICL
$6.85B
$1.25M ﹤0.01%
244,407
-27,003
-10% -$144K
SEI
1500
Solaris Energy Infrastructure
SEI
$3.55B
$1.25M ﹤0.01%
22,088
+86
+0.4% +$4.65K
58 59
60
61 62

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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.