One William Street Capital Management, L.P.

Institutional InvestorSimilar funds →SEC EDGAR: CIK 1534300
Institutional-grade research for retail investors

13F Reported Value

$1.2B

incl. option notional

Equity Holdings

$52.0M

Option Notional

$1.1B

$1.0B puts / $80.6M calls

Holdings

16

Latest Filing

2026-03-31

Filing Quarter

Q1 2026

Portfolio Overview

One William Street Capital Management, L.P. disclosed 16 positions worth $1.2B in its Form 13F-HR for Q1 2026$52.0M in common stock plus $1.1B of put/call option positions (reported at underlying notional value, not premium at risk), followed by $IVZ. During the quarter the fund opened 10 new positions and exited 2 — including a new stake in $IVZ. The portfolio is most concentrated in Financials (42.9% of disclosed assets). All figures are sourced directly from One William Street Capital Management, L.P.’s Form 13F-HR filing with the SEC under CIK 1534300.

Sector Allocation

FinancialsReal EstateOtherEnergy

AUM History

Top Equity Holdings by Value

Option Positions

13F rules report options at the value of the underlying shares (notional) — not the premium paid or capital at risk. Shown separately from the equity sleeve above.

ISHARES TRPUT$1.0B notional
$IVZCALL$41M notional
ISHARES TRCALL$40M notional
$SPYPUT$16M notional
ISHARES TRPUT$11M notional

Quarterly Activity — Q1 2026

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Top Holdings

AI Quality Scored

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32-signal composite ranking on each of One William Street Capital Management, L.P.'s 16 positions.

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Sector Allocation

Financials

$22.3M

Real Estate

$18.9M

Other

$10.8M

Energy

$25,113

Full Holdings — One William Street Capital Management, L.P. (Q1 2026)

All 16 disclosed positions from the latest Form 13F-HR, with quarter-over-quarter share changes and 13F Pro quality scores. Sourced from SEC EDGAR.

#TickerCompanyValueWeightQoQQuality
1ISHARES TR$1.0B+49%
2IVZ$IVZCALLInvesco Ltd.$40.8MNEW
3ISHARES TR$39.8MNEW
4SPY$SPYPUTSPDR S&P 500 ETF TRUST$16.3MNEW
5IVZ$IVZInvesco Ltd.$14.8M28.4%+383%
6ISHARES TR$10.5M+42%
7TRTX$TRTXTPG RE Finance Trust, Inc.$8.4M16.1%+124%
8VANGUARD SCOTTSDALE FDS$5.9M11.4%NEW
9FLG$FLGFLAGSTAR BANK, NATIONAL ASSOCIATION$5.3M10.1%+0%
10SPY$SPYSPDR S&P 500 ETF TRUST$4.9M9.4%NEW
11CUZ$CUZCOUSINS PROPERTIES INC$4.5M8.7%NEW51.1
12RKT$RKTRocket Companies, Inc.$2.3M4.3%NEW
13ARI$ARIApollo Commercial Real Estate Finance, Inc.$2.1M4.1%NEW53.5
14STWD$STWDSTARWOOD PROPERTY TRUST, INC.$2.0M3.8%NEW54.6
15BXMT$BXMTBLACKSTONE MORTGAGE TRUST, INC.$1.9M3.7%NEW
16NFE$NFENew Fortress Energy Inc.$25,1130.1%+0%17.3

New Positions (10)

IVZ$IVZCALL Invesco Ltd.$40.8M
CALL ISHARES TR$39.8M
SPY$SPYPUT SPDR S&P 500 ETF TRUST$16.3M
VANGUARD SCOTTSDALE FDS$5.9M
SPY$SPY SPDR S&P 500 ETF TRUST$4.9M
CUZ$CUZ COUSINS PROPERTIES INC$4.5M
RKT$RKT Rocket Companies, Inc.$2.3M
ARI$ARI Apollo Commercial Real Estate Finance, Inc.$2.1M
STWD$STWD STARWOOD PROPERTY TRUST, INC.$2.0M
BXMT$BXMT BLACKSTONE MORTGAGE TRUST, INC.$1.9M

Exited Positions (2)

ISHARES TR
GSBD$GSBD Goldman Sachs BDC, Inc.

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AI-Powered Hedge Fund Analysis: One William Street Capital Management, L.P.

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