CIK: 0000943712
Total reported value
$251.2M
Reporting period: 2026-03-31 · Number of holdings: 2
WASHINGTON STATE INVESTMENT BOARD disclosed 2 holdings in its latest 13F filing for the period ending 2026-03-31, with total reported value of $251.2M and a quarterly turnover rate of 23.7%.
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Washington State Investment Board's disclosed holdings carry a Herfindahl concentration index of 0.644 — mathematically equivalent to about 2 equally-sized positions, close to its 2 actual disclosed holdings. Value is spread relatively evenly across the portfolio rather than concentrated in a handful of names.
Position sizes are fairly uniform across the portfolio (a coefficient of variation of 0.76), suggesting a disciplined, rules-based approach to how much capital goes into each idea.
No strong tilt toward either adding to existing winners or initiating outsized new positions was observed in the latest reported quarter.
Trim FTAI
-39.3% -$62.6M
Add FIP
0.0% $3.9M
| # | Ticker | Issuer | Asset Subclass | Weight | Weight Change | Shares Change | 4Q Trend |
|---|---|---|---|---|---|---|---|
| 1 | FTAI | FTAI Aviation Ltd. | Stock-Industrials | 76.83% | -5.64% | -39.32% | |
| 2 | FIP | Ftai Infrastructure INC | Stock-Other | 23.17% | +5.64% | — |
Performance for Q3 2026
-18.6%
Performance Last 4 Quarters
+33.6%
| Period | Holdings | Total value | Stability | Top holdings |
|---|---|---|---|---|
| 2026-03-31 | 2 | $251.2M | 24 | |
| 2025-12-31 | 2 | $309.9M | 7 | |
| 2025-09-30 | 2 | $289.7M | 12 | |
| 2025-06-30 | 2 | $256.5M | 0 | |
| 2025-03-31 | 2 | $260.4M | 100 | |
| 2024-12-31 | 2 | $383.8M | 0 | |
| 2024-09-30 | 2 | $963.9M | 0 | |
| 2024-06-30 | 2 | $959.3M | 0 | |
| 2024-03-31 | 2 | $633.1M | 0 | |
| 2023-12-31 | 2 | $431.3M | 0 | |
| 2023-09-30 | 2 | $333.3M | 0 | |
| 2023-06-30 | 2 | $353.3M | 0 | |
| 2023-03-31 | 2 | $364.9M | 0 | |
| 2022-12-31 | 2 | $236.5M | 0 | |
| 2022-09-30 | 2 | $205.0M | 0 | |
| 2022-06-30 | 1 | $227.9M | 0 | |
| 2022-03-31 | 1 | $303.5M | 0 | |
| 2021-12-31 | 1 | $340.8M | 0 | |
| 2021-09-30 | 1 | $299.1M | 0 | |
| 2021-06-30 | 1 | $395.4M | 100 | |
| 2021-03-31 | 1 | $332.2M | 18 | |
| 2020-12-31 | 1 | $276.5M | 31 | |
| 2020-09-30 | 1 | $201.9M | 27 | |
| 2020-06-30 | 1 | $153.1M | 100 | |
| 2016-03-31 | 26 | $69.6M | 13 | |
| 2015-12-31 | 25 | $63.0M | 10 | |
| 2015-09-30 | 25 | $63.1M | 31 | |
| 2015-06-30 | 25 | $81.9M | 15 | |
| 2015-03-31 | 25 | $84.9M | 12 | |
| 2014-12-31 | 27 | $94.8M | 12 | |
| 2014-09-30 | 26 | $104.2M | 13 | |
| 2014-06-30 | 26 | $112.2M | 12 | |
| 2014-03-31 | 26 | $101.8M | 19 | |
| 2013-12-31 | 26 | $106.1M | 11 | |
| 2013-09-30 | 26 | $100.2M | 33 | |
| 2013-06-30 | 28 | $100.8M | — |
Washington State Investment Board's most significant position changes for 2026-03-31: Trim: FTAI Aviation Ltd. (FTAI) — shares -39.32%.
| # | Ticker | Issuer | Weight Change | Shares Change | Action |
|---|---|---|---|---|---|
| 1 | FIP | Ftai Infrastructure INC | +5.6% | — | Unchanged |
| 2 | FTAI | FTAI Aviation Ltd. | -5.6% | -39.32% | Trim |
| Period | Filed | Type | EDGAR |
|---|---|---|---|
| 2026-03-31 | 2026-05-05 | 13F-HR | View on EDGAR |
| 2025-12-31 | 2026-02-09 | 13F-HR | View on EDGAR |
| 2025-09-30 | 2025-11-14 | 13F-HR | View on EDGAR |
| 2025-06-30 | 2025-08-11 | 13F-HR | View on EDGAR |
| 2025-03-31 | 2025-05-05 | 13F-HR | View on EDGAR |
| 2024-12-31 | 2025-02-14 | 13F-HR | View on EDGAR |
| 2024-09-30 | 2024-11-14 | 13F-HR | View on EDGAR |
| 2024-06-30 | 2024-08-05 | 13F-HR | View on EDGAR |
| 2024-03-31 | 2024-05-09 | 13F-HR | View on EDGAR |
| 2023-12-31 | 2024-02-01 | 13F-HR | View on EDGAR |
| 2023-09-30 | 2023-11-14 | 13F-HR | View on EDGAR |
| 2023-06-30 | 2023-08-02 | 13F-HR | View on EDGAR |
| 2023-03-31 | 2023-05-15 | 13F-HR | View on EDGAR |
| 2022-12-31 | 2023-02-08 | Amendment | View on EDGAR |
| 2022-12-31 | 2023-01-09 | 13F-HR | View on EDGAR |
| 2022-09-30 | 2022-11-07 | 13F-HR | View on EDGAR |
| 2022-06-30 | 2022-08-02 | 13F-HR | View on EDGAR |
| 2022-03-31 | 2022-05-02 | 13F-HR | View on EDGAR |
| 2021-12-31 | 2022-02-03 | 13F-HR | View on EDGAR |
| 2021-09-30 | 2021-11-04 | 13F-HR | View on EDGAR |
| 2021-06-30 | 2021-08-06 | 13F-HR | View on EDGAR |
| 2021-03-31 | 2021-04-29 | 13F-HR | View on EDGAR |
| 2020-12-31 | 2021-01-29 | 13F-HR | View on EDGAR |
| 2020-09-30 | 2020-11-05 | 13F-HR | View on EDGAR |
| 2020-06-30 | 2020-08-12 | 13F-HR | View on EDGAR |
| 2016-03-31 | 2016-04-12 | 13F-HR | View on EDGAR |
| 2015-12-31 | 2016-01-28 | 13F-HR | View on EDGAR |
| 2015-09-30 | 2015-10-22 | 13F-HR | View on EDGAR |
| 2015-06-30 | 2015-07-28 | 13F-HR | View on EDGAR |
| 2015-03-31 | 2015-04-22 | 13F-HR | View on EDGAR |
| 2014-12-31 | 2015-01-29 | 13F-HR | View on EDGAR |
| 2014-09-30 | 2014-10-22 | 13F-HR | View on EDGAR |
| 2014-06-30 | 2014-07-23 | 13F-HR | View on EDGAR |
| 2014-03-31 | 2014-05-02 | 13F-HR | View on EDGAR |
| 2013-12-31 | 2014-01-30 | 13F-HR | View on EDGAR |
| 2013-09-30 | 2013-11-08 | 13F-HR | View on EDGAR |
| 2013-06-30 | 2013-08-02 | 13F-HR | View on EDGAR |
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