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STATE OF WISCONSIN INVESTMENT BOARD

Benefit plan
Location
MADISON, WI
Portfolio Value
Large $49,103,423,030
Diversification
Diversified
Filing Date
Global Rank
#191 / 8,818 ▼ 11
Top Industry
Semiconductors 12.7%
Period ended 4 months ago
Filed Aug 14, 2026 · 3mo
26 quarters · since Mar 2020

Regulatory profile

From Form ADV, the SEC filer profile, 13D/13G type codes and N-CEN, never from the name.

Holder type
Benefit plan
Schedule 13G, Aug 14, 2026

Portfolio style

Measured from the filed 13F common-share book for Jun 30, 2026, never from the firm's own description.

Style
Diversified active
Top 10 weight 29.5%, 80.9 effective positions, active share 20.8% against every 13F filer's combined book; it meets none of the index-like, systematic-like or concentrated tests
Turnover
Low turnover
16.2% over the last four quarters (under 30%)
Horizon
Long horizon
Value-weighted holding period 22.4 quarters (12+), a floor since 75.4% of the book was already held when coverage starts

Closest benchmark: every 13F filer's combined book, active share 20.8%; sector active share 5.9% against the combined 13F book's sector weights.

Over time 26 measured quarters

How the bands are measured

Style bands measure the filed 13F common-share book each closed quarter, tested in this order. Unknown: under $10,000,000 of valued equity or 5 stocks. Index-like (100+ stocks): active share of 20% or less against the closest benchmark, which is the S&P 500, S&P MidCap 400, S&P SmallCap 600, Russell 1000, Russell 2000, Nasdaq-100 or Dow Jones Industrial Average (weighted by an index-tracking fund's reported holdings or the index's constituents nearest the quarter end, over the names resolved to companies, and only when those are 90%+ of its weight) or every 13F filer's combined book, or index series holding 80%+ of the registered fund assets it advises (N-CEN) and equal to 50%+ of its book. Systematic-like: 500+ stocks, 100%+ annual turnover and a top 10 weight of 25% or less. Concentrated: a top 10 weight of 60%+ or 12 or fewer effective positions. Diversified active: none of these. Turnover is the smaller of buys and sells over average equity value, summed over four quarters: low under 30%, high 100%+. Horizon is the value-weighted number of quarters each position has been held: short under 4, long 12+.

Clone Performance

Build a hypothetical price-return history from this filer's public 13F holdings.

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Portfolio Concentration

2,414 tracked positions · as of Jun 30, 2026 · Δ vs Mar 31, 2026
Top Position
5.0%
−0.2 pts
Top 5
20.2%
+0.4 pts
Top 10
29.5%
+0.2 pts
HHI
124
Sep 2023 → Jun 2026 · range 94 – 138
Diversified+5

Portfolio Trend

26 quarters · across all stocks

Sector Breakdown

As of Jun 30, 2026
Sector % Portfolio Value
Technology 29.2% $14,361,429,502
Financial Services 12.5% $6,129,290,627
Industrials 10.1% $4,939,928,304
Communication Services 9.8% $4,832,167,790
Consumer Cyclical 8.5% $4,150,611,845
Healthcare 8.4% $4,126,712,511
Unclassified 7.9% $3,863,074,046
Consumer Defensive 3.8% $1,865,502,856
Energy 3.5% $1,728,453,700
Real Estate 2.2% $1,103,659,701
Utilities 2.1% $1,029,796,379
Basic Materials 2.0% $972,795,769

Last Quarter's Activity

Export CSV
Jun 30, 2026 vs Mar 31, 2026

Added To

Positions the filer increased
25 positions
Ticker Δ Shares Shares Value Open

Trimmed

Positions the filer reduced
25 positions
Ticker Δ Shares Shares Value Open
— −1,104,487 1,849,057 $149,440,786
— −197,994 216,202 $16,522,156

New Positions

Positions the filer opened this quarter
25 positions
Ticker Shares Value Open

Sold Out

Positions the filer fully exited
25 positions
Ticker Shares Value Open
— 413,556 $14,532,358
— 129,901 $9,819,217
— 120,000 $3,411,600
— 79,680 $3,205,526
— 90,907 $3,043,566
— 50,946 $2,685,873
— 35,279 $2,291,018
— 140,812 $2,036,142
— 17,434 $2,001,772
— 7,189 $1,278,707

Portfolio Positions

Export CSV View 13F filing
2,414 tracked positions · $49,103,423,030 total · filing declares 2,529 positions · $49,553,548,104 · as of Jun 30, 2026
Showing 1–50 of 2,414 positions by value · page 1 of 49
Ticker Company Shares Value (USD) % of Portfolio History

Showing the top 50 of 2,414 positions. Create a free account to see every position, past quarters, search, filters and CSV export.

Covers the securities this platform tracks: U.S.-listed common stock and the put/call positions reported on it. A 13F can also report security types outside that coverage — preferred shares, bonds, warrants, untracked share classes — so the filing's own declared total can exceed the figures above. The source filing is linked at the top of this table.