One William Street Capital Management, L.P.
One William Street Capital Management, L.P. reported 12 US-listed holdings worth $42.3 million in its 13F for the quarter ended 30 June 2026, filed 14 August 2026. Its largest: Invesco Exch Traded FD Trust II (37.1%), TPG Re Fin Trust Inc. (21.2%) and Vanguard Intermediate-Term Corp. (14.0%). Against the quarter before, it opened 2 positions, added to 1, trimmed 3 and sold out of 1.
The 12 largest of its 12 positions, each sized by its share of the reported holdings, coloured by the change in shares against Q1 2026.
What the fund reported holding at each quarter's end; hover a bar for the number of positions
What its reported holdings returned
Held through each quarter, the holdings it reported returned +87.9% over the 7 quarters to 30 June 2026, against +30.2% for the S&P 500.
Not the fund's own return: each 13F's holdings are kept unchanged until the next one, so trades inside a quarter, dividends, cash and fees are left out. A rough guide to how its picks have done over time.
What it did on the quarter
Its positions against its 13F for the quarter to 31 March 2026; a change under 0.1% of a position counts as held
Opened 2
- KKR Real Estate Fin Trust Inc. KREF$1.4 million
- Service Pptys Trust SVC$1.1 million
Added to 1
- Invesco Exch Traded FD Trust II BKLN+45,977 shares · +6%
Trimmed 3
- Cousins Properties Inc. CUZ-179,915 shares · -90%
- Flagstar Bank, National Association FLG-244,000 shares · -61%
- Rocket Companies, Inc. RKT-120,030 shares · -76%
Sold out of 1
- SPDR S&P 500 SPY$4.9 million last quarter
What it holds
| Company | Shares | Value | Of its book | Change in shares |
|---|---|---|---|---|
| Invesco Exch Traded FD Trust II BKLN | 771.0K | $15.7 million | 37.13% | +46.0K |
| TPG Re Fin Trust Inc. TRTX | 1.1M | $9.0 million | 21.17% | no change |
| Vanguard Intermediate-Term Corp. VCIT | 71.7K | $5.9 million | 14.01% | no change |
| Flagstar Bank, National Association FLG | 156.0K | $2.3 million | 5.51% | -244.0K |
| Apollo Coml Real Est Fin Inc. ARI | 200.0K | $2.1 million | 5.05% | no change |
| Starwood Property Trust, Inc. STWD | 114.0K | $1.9 million | 4.41% | no change |
| Blackstone MTG Trust Inc. BXMT | 100.0K | $1.7 million | 4.01% | no change |
| KKR Real Estate Fin Trust Inc. KREF | 202.0K | $1.4 million | 3.27% | new |
| Service Pptys Trust SVC | 630.0K | $1.1 million | 2.52% | new |
| Cousins Properties Inc. CUZ | 20.6K | $617,138 | 1.46% | -179.9K |
| Rocket Companies, Inc. RKT | 38.3K | $603,335 | 1.43% | -120.0K |
| New Fortress Energy Inc. NFE | 42.6K | $15,455 | 0.04% | no change |
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Change is shares against its 13F for the quarter before; the 1 it sold out of are in the box above.Options it reported
| Company | Option | Shares under the options | Value of those shares |
|---|---|---|---|
| iShares Trust HYG | Puts | 1.5M | $120.0 million |
| iShares Trust HYG | Calls | 900.0K | $72.0 million |
| iShares Russell 2000 ETF IWM | Puts | 27.5K | $8.3 million |
3 option lines. A 13F lists calls and puts by the shares they cover and what those shares were worth at the quarter's end, not what the options cost; they are not counted in the holdings above.