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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
+486.42%
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
AFL icon
251
Aflac
AFL
$63.7B
$29.2M 0.07%
266,193
+3,581
+1% +$397K
IDXX icon
252
Idexx Laboratories
IDXX
$46.5B
$28.9M 0.07%
51,378
-323
-0.6% -$207K
CM icon
253
Canadian Imperial Bank of Commerce
CM
$109B
$28.9M 0.07%
305,540
-50,300
-14% -$4.81M
VTR icon
254
Ventas
VTR
$47.3B
$28.8M 0.07%
352,216
+30,890
+10% +$2.53M
D icon
255
Dominion Energy
D
$59.9B
$28.8M 0.07%
465,613
+9,674
+2% +$598K
WBS icon
256
Webster Financial
WBS
$12.8B
$28.8M 0.07%
414,196
+33,054
+9% +$2.26M
F icon
257
Ford
F
$56.9B
$28.7M 0.07%
2,490,916
+151,344
+6% +$1.99M
URI icon
258
United Rentals
URI
$72B
$28.6M 0.07%
39,266
+1,144
+3% +$961K
FAST icon
259
Fastenal
FAST
$57.6B
$28.5M 0.07%
614,786
-95,720
-13% -$4.3M
ADSK icon
260
Autodesk
ADSK
$50.3B
$28.5M 0.07%
119,119
-2,441
-2% -$614K
PCG icon
261
PG&E
PCG
$38.2B
$28.5M 0.07%
1,621,861
+468,959
+41% +$7.98M
CUK
262
DELISTED
Carnival PLC
CUK
$28.5M 0.07%
1,105,495
-12,095
-1% -$351K
SU icon
263
Suncor Energy
SU
$74.6B
$28.4M 0.07%
431,247
-100,200
-19% -$5.54M
FTNT icon
264
Fortinet
FTNT
$123B
$28.3M 0.06%
346,176
-16,043
-4% -$1.3M
DELL icon
265
Dell
DELL
$309B
$28.1M 0.06%
171,075
-20,495
-11% -$2.73M
MPWR icon
266
Monolithic Power Systems
MPWR
$64.8B
$28M 0.06%
25,655
-3,702
-13% -$4.04M
KEYS icon
267
Keysight
KEYS
$58B
$28M 0.06%
99,117
+5,872
+6% +$1.47M
ZTS icon
268
Zoetis
ZTS
$31.2B
$27.9M 0.06%
236,309
+6,804
+3% +$841K
HOOD icon
269
Robinhood
HOOD
$84.6B
$27.9M 0.06%
402,000
+20,318
+5% +$1.78M
VMC icon
270
Vulcan Materials
VMC
$37.4B
$27.8M 0.06%
102,255
+10,183
+11% +$3M
VST icon
271
Vistra
VST
$47.8B
$27.5M 0.06%
182,664
-41
-0% -$6.64K
AME icon
272
Ametek
AME
$58.4B
$27.4M 0.06%
127,816
+8,116
+7% +$1.8M
TPL icon
273
Texas Pacific Land
TPL
$26.6B
$27.2M 0.06%
57,411
-1,707
-3% -$734K
TPR icon
274
Tapestry
TPR
$32.5B
$27.1M 0.06%
192,240
+36,642
+24% +$5.19M
XEL icon
275
Xcel Energy
XEL
$48B
$27M 0.06%
340,088
+20,945
+7% +$1.64M
9 10
11
12 13

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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.