SEC 13F Intelligence

Managers / Q1 2026

Diameter Capital Partners LP

CIK 0001727012 · 50 HUDSON YARDS, SUITE 6600A, NEW YORK, NY, 10001 · 212-655-1400

Reported Value
$1.1B
Q1 2026
Positions
29
Filings on Record
30
2019–present window
Filed
May 15, 2026
original filing

Summary

Diameter Capital Partners Lp reported $1.1B in U.S.-listed holdings across 29 positions for Q1 2026.

Its largest position, ECHO, represents 16.1% of the portfolio.

Compared with Q4 2025, the fund opened 12 new positions and exited 23.

Reported Value by Quarter

13F Reported Value
Q4 ’18: $219MQ4 ’18Q1 ’19: $286MQ2 ’19: $491MQ3 ’19: $283MQ4 ’19: $1.0BQ4 ’19Q1 ’20: $296MQ2 ’20: $1.1BQ3 ’20: $1.4BQ4 ’20: $940MQ4 ’20Q1 ’21: $951MQ2 ’21: $1.5BQ3 ’21: $1.1BQ4 ’21: $1.7BQ4 ’21Q1 ’22: $2.1BQ2 ’22: $2.0BQ3 ’22: $771MQ4 ’22: $643.7BQ4 ’22Q1 ’23: $597MQ2 ’23: $1.1BQ3 ’23: $456MQ4 ’23: $829MQ4 ’23Q1 ’24: $973MQ2 ’24: $849MQ3 ’24: $1.2BQ4 ’24: $678MQ4 ’24Q1 ’25: $858MQ2 ’25: $876MQ3 ’25: $1.6BQ4 ’25: $1.1BQ4 ’25Q1 ’26: $1.1Bfilingsflow.com

Portfolio Composition

By security type

Composition data arrives with ticker enrichment.

Quarter-over-Quarter Changes full breakdown →

Holdings — Q1 2026

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Filing History

QuarterReported ValuePositionsFiledTypeLinks
Q1 2026$1.1B29May 15, 202613F-HRchanges · EDGAR ↗
Q4 2025$1.1B40Feb 17, 202613F-HRchanges · EDGAR ↗
Q3 2025$1.6B41Nov 14, 202513F-HRchanges · EDGAR ↗
Q2 2025$876M26Aug 14, 202513F-HRchanges · EDGAR ↗
Q1 2025$858M23May 15, 202513F-HRchanges · EDGAR ↗
Q4 2024$678M29Feb 14, 202513F-HRchanges · EDGAR ↗
Q3 2024$1.2B25Nov 14, 202413F-HRchanges · EDGAR ↗
Q2 2024$849M23Aug 14, 202413F-HRchanges · EDGAR ↗
Q1 2024$973M20May 15, 202413F-HRchanges · EDGAR ↗
Q4 2023$829M20Feb 14, 202413F-HRchanges · EDGAR ↗
Q3 2023$456M23Nov 14, 202313F-HRchanges · EDGAR ↗
Q2 2023$1.1B23Aug 14, 202313F-HRchanges · EDGAR ↗
Q1 2023$597M18May 15, 202313F-HRchanges · EDGAR ↗
Q4 2022$643.7B26Feb 14, 202313F-HRchanges · EDGAR ↗
Q3 2022$771M26Nov 14, 202213F-HRchanges · EDGAR ↗
Q2 2022$2.0B34Aug 15, 202213F-HRchanges · EDGAR ↗
Q1 2022$2.1B58May 16, 202213F-HRchanges · EDGAR ↗
Q4 2021$1.7B162Feb 15, 202213F-HRchanges · EDGAR ↗
Q3 2021$1.1B123Nov 15, 202113F-HRchanges · EDGAR ↗
Q2 2021$1.5B127Aug 16, 202113F-HRchanges · EDGAR ↗
Q1 2021$951M96May 17, 202113F-HRchanges · EDGAR ↗
Q4 2020$940M29Feb 16, 202113F-HRchanges · EDGAR ↗
Q3 2020$1.4B22Nov 16, 202013F-HRchanges · EDGAR ↗
Q2 2020$1.1B23Aug 14, 202013F-HRchanges · EDGAR ↗
Q1 2020$296M14May 15, 202013F-HRchanges · EDGAR ↗
Q4 2019$1.0B20Feb 14, 202013F-HRchanges · EDGAR ↗
Q3 2019$283M18Nov 14, 201913F-HRchanges · EDGAR ↗
Q2 2019$491M17Aug 14, 201913F-HRchanges · EDGAR ↗
Q1 2019$286M16May 15, 201913F-HRchanges · EDGAR ↗
Q4 2018$219M18Feb 14, 201913F-HRchanges · EDGAR ↗

13F filings are due up to 45 days after quarter end, so holdings shown here lag the fund’s current book. Source: original SEC filing on EDGAR ↗.