Diameter Capital Partners LP In its 13F for Q1 2024 (holdings as of March 31, 2024, filed May 15, 2024), Diameter Capital Partners LP reported 11 stock positions worth $454.6 million . Its top holding was Ishr Ibx Usd Invgd CB ETF-Ui (LQD) at 71.9% of the portfolio, followed by Callaway Golf (CALY, 10.0% ) and Primoris Services (PRIM, 6.1% ). Compared with Q4 2023, it opened 6 new positions, sold out of 5, added to 2 and reduced 1. The biggest buy was a new position in Ishr Ibx Usd Invgd CB ETF-Ui (LQD) and the biggest sale Callaway Golf (CALY, shares −44% ).
Location New York, NY
CIK 0001727012
Portfolio Value $454.6M (Q1 2024) Holdings 11 stocks · $454.6M Holdings quarter Q2 2026 Q1 2026 Q4 2025 Q3 2025 Q2 2025 Q1 2025 Q4 2024 Q3 2024 Q2 2024 Q1 2024
Stock % Of Portfolio ▼ Shares Held Total Value Change vs Q4 2023 LQD Ishr Ibx Usd Invgd CB ETF-Ui 3,000,000 $326.8M New CALY Callaway Golf Company filed as TOPGOLF CALLAWAY BRANDS CORP 2,800,000 $45.3M Reduce -44.0% PRIM Primoris Services Corp. 650,000 $27.7M No change ECHO Echostar Corp. Class A 1,185,045 $16.9M New AMBP Ardagh Metal Packaging SA 4,890,183 $16.8M Add +25.1% VIVID SEATS INC 1,731,027 $10.4M Add +18.8% ATMU Atmus Filtration Technologie 125,000 $4.0M New PENN Penn Entertainment Inc. 200,000 $3.6M New BOX Box Inc. Class A 100,000 $2.8M New GPOR Gulfport Energy Corp. 1,910 $306K New BENSON HILL INC 44,427 $9K No change
Options reported separately and not counted above: QQQ calls ($133.2M), AAL puts ($107.5M), UAL puts ($71.8M), XLF calls ($63.2M).
Other holdings (5): bonds, preferreds, convertibles and warrants · $143.1M (not counted above) Security Class Shares / Principal Value Change DISH NETWORK CORP (DISH 0 12/15/25) NOTE 12/1 · principal 90,000,000 $65.7M Reduce -24.1% ANYWHERE RE GRP/REALOGY (HOUS 0.25 06/15/26) NOTE 0.250% 6/1 · principal 63,235,000 $51.1M Add +33.9% DISH NETWORK CORP (DISH 3.375 08/15/26) NOTE 3.375% 8/1 · principal 32,188,000 $20.3M Add +74.0% LIBERTY INTERACTIVE LLC (LINTA 3.75 02/15/30) DEB 3.750% 2/1 · principal 10,623,274 $4.4M Reduce -0.1% LIBERTY INTERACTIVE LLC (LINTA 4 11/15/29) DEB 4.000%11/1 · principal 3,624,972 $1.5M No change
Total filed on the 13F, all lines: $597.6M.
Portfolio Sells Q4 2023 → Q1 2024 Portfolio Sells quarter Q2 2026 Q1 2026 Q4 2025 Q3 2025 Q2 2025 Q1 2025 Q4 2024 Q3 2024 Q2 2024 Q1 2024
Stock Change vs Q4 2023 % Of Portfolio Change To Portfolio ▲ CALY Callaway Golf Company Reduce -44.0% 9.96% −22.04 SAVEQ Spirit Airlines Inc. Sold out 0.00% −18.29 ARM Arm Holdings PLC-ADR Sold out 0.00% −10.06 AY Atlantica Sustainable Infras Sold out 0.00% −9.60 ACI Albertsons Cos Inc. Class A Sold out 0.00% −6.42 CWEN Clearway Energy Inc. Class C Sold out 0.00% −3.18
Portfolio Buys Q4 2023 → Q1 2024 Portfolio Buys quarter Q2 2026 Q1 2026 Q4 2025 Q3 2025 Q2 2025 Q1 2025 Q4 2024 Q3 2024 Q2 2024 Q1 2024
Stock Change vs Q4 2023 % Of Portfolio Change To Portfolio ▼ LQD Ishr Ibx Usd Invgd CB ETF-Ui New 71.89% +71.89 ECHO Echostar Corp. Class A New 3.71% +3.71 ATMU Atmus Filtration Technologie New 0.89% +0.89 PENN Penn Entertainment Inc. New 0.80% +0.80 BOX Box Inc. Class A New 0.62% +0.62 GPOR Gulfport Energy Corp. New 0.07% +0.07 VIVID SEATS INC Add +18.8% 2.28% −1.83 AMBP Ardagh Metal Packaging SA Add +25.1% 3.69% −3.01
Options Activity Q4 2023 → Q1 2024 Security Type Change vs Q4 2023 Underlying Shares Value ▼ IWM iShares Russell 2000 ETF put Sold out 1,315,000 $263.9Mbefore exit QQQ Invesco QQQ Trust Series 1 call New 300,000 $133.2M AAL American Airlines Group Inc. put Add +42.9% 7,000,000 $107.5M UAL United Airlines Holdings Inc. put Reduce -33.0% 1,500,000 $71.8M XLF SS Financial Select Sector call New 1,500,000 $63.2M
Calls and puts are listed by the shares they cover; their value is not part of the stock holdings above.
Notes & Other Activity Q4 2023 → Q1 2024 Security Class Change vs Q4 2023 Shares / Principal Value ▼ DISH NETWORK CORP (DISH 0 12/15/25) NOTE 12/1 · principal Reduce -24.1% 90,000,000 $65.7M ANYWHERE RE GRP/REALOGY (HOUS 0.25 06/15/26) NOTE 0.250% 6/1 · principal Add +33.9% 63,235,000 $51.1M DIGITALOCEAN HOLDINGS (DOCN 0 12/01/26) NOTE 12/0 · principal Sold out 50,000,000 $41.4Mbefore exit DISH NETWORK CORP (DISH 3.375 08/15/26) NOTE 3.375% 8/1 · principal Add +74.0% 32,188,000 $20.3M BRIDGEBIO PHARMA INC (BBIO 2.25 02/01/29) NOTE 2.250% 2/0 · principal Sold out 17,257,000 $14.6Mbefore exit LIBERTY INTERACTIVE LLC (LINTA 3.75 02/15/30) DEB 3.750% 2/1 · principal Reduce -0.1% 10,623,274 $4.4M
Bonds, preferreds, convertibles and warrants; not part of the stock holdings or percentages above.
All Filings Quarter Positions 13F Reported Value Top Holdings Q2 2026 Amended 28 $759.9M IAU, TDS, MBC, UNIT, SPCX Q1 2026 17 $446.3M ECHO, UNIT, FBIN, SILA, PCG Q4 2025 32 $894.5M ECHO, MBC, TDS, SILA, FSK Q3 2025 30 $951.9M ECHO, MBC, WBD, TDS, SILA Q2 2025 19 $341.0M ECHO, VISN, WBD, RH, NVRI Q1 2025 16 $373.9M ECHO, SILA, NBIS, OPTU, WBD Q4 2024 19 $406.7M ECHO, SILA, NBIS, CORZ, VEON Q3 2024 16 $308.5M APLD, SILA, CORZ, OPTU, TAC Q2 2024 13 $295.3M CORZ, LQD, VIK, PRIM, AMBP Q1 2024 11 $454.6M LQD, CALY, PRIM, ECHO, AMBP