One William Street Capital Management 13F: Quarter-over-Quarter Portfolio Changes
One William Street Capital Management reported a disclosed portfolio value of approximately $52.0 million in its latest SEC Form 13F-HR filing for Q1 2026, up 21.9% quarter on quarter. Over the quarter, the fund initiated 8 new positions, bought more shares in 1 holding, and exited 3 positions.
One William Street Capital Management's top buy was a new stake in Invesco Exch Traded Fd Tr II (BKLN) , equal to 28.4% of the disclosed portfolio. Its top sell was Invesco Exchange Traded Fd T (RSP) . The fund exited the position completely after it had accounted for 67.3% of the previous portfolio.
New PositionsQ1 2026
Securities disclosed for the first time in Q1 2026 that were not present in the prior 13F-HR filing.
| Company | Ticker | Initial Portfolio Weight | History |
|---|---|---|---|
| INVESCO EXCH TRADED FD TR II | BKLN | 28.4% | History → |
| VANGUARD SCOTTSDALE FDS | VCIT | 11.4% | History → |
| STATE STR SPDR S&P 500 ETF T | SPY | 9.4% | History → |
| COUSINS PPTYS INC | CUZ | 8.7% | History → |
| ROCKET COS INC | RKT | 4.3% | History → |
| APOLLO COML REAL ESTATE FIN | ARI | 4.1% | History → |
| STARWOOD PPTY TR INC | STWD | 3.8% | History → |
| BLACKSTONE MORTGAGE TRUST IN | BXMT | 3.7% | History → |
Top BuysQ1 2026
The fund's top buys among existing positions in Q1 2026. Ranked by portfolio-weight impact, with the percentage of additional shares shown separately.
| Company | Ticker | Portfolio Weight Change | More Shares | History |
|---|---|---|---|---|
| TPG RE FIN TR INC | TRTX | +6.4% | +124.3% | History → |
Full ExitsQ1 2026
Positions present in the prior 13F-HR filing that no longer appear in Q1 2026.
| Company | Ticker | Last-Reported Portfolio Weight |
|---|---|---|
| INVESCO EXCHANGE TRADED FD T | RSP | 67.3% |
| ISHARES TR | HYG | 9.4% |
| GOLDMAN SACHS BDC INC | GSBD | 1.7% |
Net Portfolio Value ChangeQ1 2026
- $0.0BPrior quarter
- $0.1BCurrent quarter
- +$0.0BNet delta
- +21.9%% change
Methodology & FAQ
How One William Street Capital Management Quarterly Changes Are Computed
All deltas are sourced from sequential SEC Form 13F-HR filings for One William Street Capital Management: each row joins the most recent filing against the immediately preceding quarterly filing for the same fund. Share-count changes reflect reported trading activity, while portfolio weights can also move because of market price changes. Portfolio weights are normalized to exclude listed options for comparability. A complete description — including how confidential treatment filings are handled — is documented in the Methodology.
What stocks did One William Street Capital Management buy in Q1 2026?
In Q1 2026, One William Street Capital Management initiated 8 new positions (INVESCO EXCH TRADED FD TR II (BKLN), VANGUARD SCOTTSDALE FDS (VCIT), STATE STR SPDR S&P 500 ETF T (SPY), COUSINS PPTYS INC (CUZ), ROCKET COS INC (RKT), APOLLO COML REAL ESTATE FIN (ARI), STARWOOD PPTY TR INC (STWD), BLACKSTONE MORTGAGE TRUST IN (BXMT)); bought more shares of TPG RE FIN TR INC (TRTX).
What stocks did One William Street Capital Management sell in Q1 2026?
In Q1 2026, One William Street Capital Management fully sold 3 positions (INVESCO EXCHANGE TRADED FD T (RSP), ISHARES TR (HYG), GOLDMAN SACHS BDC INC (GSBD)).
Which positions did One William Street Capital Management initiate in Q1 2026?
One William Street Capital Management established 8 new positions in Q1 2026: INVESCO EXCH TRADED FD TR II (BKLN, 28.4%), VANGUARD SCOTTSDALE FDS (VCIT, 11.4%), STATE STR SPDR S&P 500 ETF T (SPY, 9.4%), COUSINS PPTYS INC (CUZ, 8.7%), ROCKET COS INC (RKT, 4.3%), APOLLO COML REAL ESTATE FIN (ARI, 4.1%), STARWOOD PPTY TR INC (STWD, 3.8%), BLACKSTONE MORTGAGE TRUST IN (BXMT, 3.7%).
Which existing positions saw the largest allocation increases for One William Street Capital Management in Q1 2026?
Of 1 existing position with share-count increases in Q1 2026, the largest were: TPG RE FIN TR INC (TRTX, +6.4% weight, +124.3% shares).
Which positions did One William Street Capital Management fully exit in Q1 2026?
One William Street Capital Management fully exited 3 positions in Q1 2026: INVESCO EXCHANGE TRADED FD T (RSP, last-reported weight 67.3%), ISHARES TR (HYG, last-reported weight 9.4%), GOLDMAN SACHS BDC INC (GSBD, last-reported weight 1.7%).
Which existing positions saw the largest allocation reductions for One William Street Capital Management in Q1 2026?
One William Street Capital Management reported no material allocation reductions in existing positions in Q1 2026.
Do quarter-over-quarter 13F allocation changes constitute explicit trading signals?
No. Quarter-over-quarter changes reflect a combination of active trading and market price movement. A weight increase can result from price appreciation alone, without the manager adding shares. Share-count delta is the cleaner indicator of explicit trading activity. All deltas on this page are sourced from sequential SEC Form 13F-HR filings.