Largest positions
| Issuer | Class | Value | Share |
|---|---|---|---|
| iShares TR (put option)IBOXX HI YD ETF | IBOXX HI YD ETF | $119,955,000 | 49.5% |
| iShares TR (call option)IBOXX HI YD ETF | IBOXX HI YD ETF | $71,973,000 | 29.7% |
| Invesco Exch Traded FD TR IISR LN ETF | SR LN ETF | $15,704,801 | 6.5% |
| Tpg RE Fin TR Inc.COM | COM | $8,955,900 | 3.7% |
| iShares TR (put option)RUSSELL 2000 ETF | RUSSELL 2000 ETF | $8,262,375 | 3.4% |
| Vanguard Scottsdale FdsINT-TERM CORP | INT-TERM CORP | $5,926,005 | 2.4% |
| Flagstar Bank National AssocCOM NEW | COM NEW | $2,330,640 | 1.0% |
| Apollo Coml Real Estate FinCOM | COM | $2,136,000 | 0.9% |
| Starwood Ppty TR Inc.COM | COM | $1,867,320 | 0.8% |
| Blackstone Mortgage Trust INCOM CL A | COM CL A | $1,695,000 | 0.7% |
| KKR Real Estate Fin TR Inc.COM | COM | $1,381,680 | 0.6% |
| Service Pptys TRCOM SH BEN INT | COM SH BEN INT | $1,064,700 | 0.4% |
| Cousins Pptys Inc.COM NEW | COM NEW | $617,138 | 0.3% |
| Rocket Cos Inc.COM CL A | COM CL A | $603,335 | 0.2% |
| New Fortress Energy Inc.COM CL A | COM CL A | $15,455 | 0.0% |
- Class
- IBOXX HI YD ETF
- Share
- 49.5%
- Class
- IBOXX HI YD ETF
- Share
- 29.7%
- Class
- SR LN ETF
- Share
- 6.5%
- Class
- COM
- Share
- 3.7%
- Class
- RUSSELL 2000 ETF
- Share
- 3.4%
- Class
- INT-TERM CORP
- Share
- 2.4%
- Class
- COM NEW
- Share
- 1.0%
- Class
- COM
- Share
- 0.9%
- Class
- COM
- Share
- 0.8%
- Class
- COM CL A
- Share
- 0.7%
- Class
- COM
- Share
- 0.6%
- Class
- COM SH BEN INT
- Share
- 0.4%
- Class
- COM NEW
- Share
- 0.3%
- Class
- COM CL A
- Share
- 0.2%
- Class
- COM CL A
- Share
- 0.0%
The share class is shown on a wider screen.
The 15 largest of 15 positions by value, with holdings of the same security combined. Share counts and quarter-on-quarter changes for each position are on EDGAR. View the full information table on EDGAR
This filing
- Form
- 13F-HR
- CIK
- 1534300
- File number
- 028-19176
- Options
- 1 call, 2 put
- In the 25 largest
- 100.0%
- Prior quarter
- $1,179,060,959 at 31 March 2026
- Positions opened
- 2
- Positions closed
- 3
Common questions
What are One William Street Capital Management’s 13F holdings worth?
$242,488,349 across 15 positions for the quarter ended 30 June 2026.
What is One William Street Capital Management’s largest 13F holding?
ISHARES TR (IBOXX HI YD ETF) was the largest position at $119,955,000, or 49.5% of reported 13F value, as of 30 June 2026.
How concentrated is One William Street Capital Management’s 13F portfolio?
The ten largest positions accounted for 98.5% of reported value and the twenty-five largest for 100.0%, across 15 positions as of 30 June 2026.
Does Form 13F show everything One William Street Capital Management manages?
No. Form 13F covers only long positions in exchange-traded securities over which the manager has investment discretion, valued at quarter end. It excludes cash, most bonds, private funds, and any assets the firm does not have discretion over, so it is neither the firm's total assets nor any individual client's portfolio.
How often does One William Street Capital Management file its 13F?
Every quarter. Managers file within 45 days of each quarter's end, so the figures are a snapshot that changes between filings. This page shows the quarter ended 30 June 2026.
Answered from this filing and the prior quarter's.