One William Street Capital Management, L.P.: 13F holdings, Q2 2026
Hedge fund · SEC EDGAR filings (CIK 1534300) · Explore on the interactive board
One William Street Capital Management, L.P. disclosed 12 US equity positions worth $42.3m in its Q2 2026 13F filing (holdings as of June 30, 2026, filed August 14, 2026). Its largest position is BKLN at 37.1% of the reported book, followed by TRTX, VCIT. The top ten holdings are 98.5% of the book, and the portfolio behaves like about 5 equal-weight positions. Versus the prior filing it opened 2 new positions, added to 1, reduced 3 and exited 1. Note: this manager's most recent filing is 3934 quarters behind the newest quarter on file, so these figures are history rather than current positioning.
What does One William Street Capital Management, L.P. own? Top holdings as of June 30, 2026
Change is measured in shares against the previous filing (Q1 2026), so price moves do not read as decisions. This quarter: 2 new, 1 added, 3 reduced, 1 exited.
| # | Stock | Sector | Weight | Value | Shares | Δ shares | Action |
|---|---|---|---|---|---|---|---|
| 1 | BKLN INVESCO EXCH TRADED FD TR II | 37.1% | $15.7m | 770,977 | 6% | added | |
| 2 | TRTX TPG RE FIN TR INC | Real Estate | 21.2% | $9.0m | 1,070,000 | 0% | held |
| 3 | VCIT VANGUARD SCOTTSDALE FDS | 14.0% | $5.9m | 71,700 | 0% | held | |
| 4 | FLG FLAGSTAR BANK NATIONAL ASSOC | Financial Services | 5.5% | $2.3m | 156,000 | -61% | reduced |
| 5 | ARI APOLLO COML REAL ESTATE FIN | Real Estate | 5.0% | $2.1m | 200,000 | 0% | held |
| 6 | STWD STARWOOD PPTY TR INC | Real Estate | 4.4% | $1.9m | 114,000 | 0% | held |
| 7 | BXMT BLACKSTONE MORTGAGE TRUST IN | Real Estate | 4.0% | $1.7m | 100,000 | 0% | held |
| 8 | KREF KKR REAL ESTATE FIN TR INC | 3.3% | $1.4m | 202,000 | – | new | |
| 9 | SERVICE PPTYS TR | 2.5% | $1.1m | 630,000 | – | new | |
| 10 | CUZ COUSINS PPTYS INC | Real Estate | 1.5% | $617.1k | 20,585 | -90% | reduced |
| 11 | RKT ROCKET COS INC | Financial Services | 1.4% | $603.3k | 38,307 | -76% | reduced |
| 12 | NFE NEW FORTRESS ENERGY INC | Energy | 0.0% | $15.5k | 42,564 | 0% | held |
What did One William Street Capital Management, L.P. sell? Positions exited since the previous filing
| Stock | Prior weight | Prior value |
|---|---|---|
| SPY STATE STR SPDR S&P 500 ETF T | 100.0% | $4.9m |
Sector mix
| Sector | Weight |
|---|---|
| Real Estate | 36.1% |
| Financial Services | 6.9% |
| Energy | 0.0% |
Sectors cover positions whose ticker resolved to a sector; the remainder is unclassified, not cash.
Filing history
How concentrated is One William Street Capital Management, L.P.'s portfolio?
Across every quarter One William Street Capital Management, L.P. has filed, its median largest position is 32.8% of the book and its median top-ten weight is 99.2%, which WhaleCreep classifies as concentrated (the gate is a median largest position of 5%). Of 1.0 completed holding spells, the median lasted 1.0 quarters; 12.0 positions are still open and their final length is unknown.