WASHINGTON STATE INVESTMENT BOARD
Long book
$251.2M
Q1 2026
Positions
2
Top-10 weight
100%
concentration
Last quarter
-1.1%
SPY +14.8%
Turnover
0%
of book per quarter
Strategy in plain words
auto-generated from filingsWASHINGTON STATE INVESTMENT BOARD is a diversified fundamental manager, specialised in services_media (77% of the long book), running a $251.2M US long book across 2 positions.
The portfolio is extremely concentrated — the top 10 positions are almost the whole book. The book barely moves quarter to quarter — a patient, low-turnover holder. Current anchor positions: FTAI AVIATION LTD, FTAI INFRASTRUCTURE INC.
Over the last 9 quarters its long book ran on average 9.9pp per quarter ahead of the S&P 500, beating the index in 6 of 9 quarters. We rate its filings as signal-bearing: position changes reflect genuine views.
Implied long-book return vs S&P 500
methodology: positions priced quarterly, no shorts/options Fund long book S&P 500
Q1 2024
+52.1%
Q2 2024
+27.0%
Q3 2024
+5.1%
Q4 2024
-25.9%
Q1 2025
+10.7%
Q2 2025
+24.3%
Q3 2025
+16.1%
Q4 2025
+21.7%
Q1 2026
-1.1%
Sector allocation
Services media 77%
Industrials 23%
Long book by quarter
What does WASHINGTON STATE own?
Q1 2026 13F13F filing history
| Period | Form | Filed | Entries | Reported value | Flags | Source |
|---|---|---|---|---|---|---|
| Q1 2026 | 13F-HR | May 5, 2026 | 2 | $251.2M | canonical | SEC ↗ |
| Q4 2025 | 13F-HR | Feb 9, 2026 | 2 | $309.9M | canonical | SEC ↗ |
| Q3 2025 | 13F-HR | Nov 14, 2025 | 2 | $289.7M | canonical | SEC ↗ |
| Q2 2025 | 13F-HR | Aug 11, 2025 | 2 | $256.5M | canonical | SEC ↗ |
| Q1 2025 | 13F-HR | May 5, 2025 | 2 | $260.4M | canonical | SEC ↗ |
| Q4 2024 | 13F-HR | Feb 14, 2025 | 2 | $383.8M | canonical | SEC ↗ |
| Q3 2024 | 13F-HR | Nov 14, 2024 | 2 | $963.9M | canonical | SEC ↗ |
| Q2 2024 | 13F-HR | Aug 5, 2024 | 2 | $959.3M | canonical | SEC ↗ |
| Q1 2024 | 13F-HR | May 9, 2024 | 2 | $633.1M | canonical | SEC ↗ |
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