Diameter Capital Partners LP
13F Reported Value
ⓘ$1.1B
incl. option notional
Equity Holdings
ⓘ$522.4M
Option Notional
ⓘ$545.9M
$512.4M puts / $33.5M calls
Holdings
29
Latest Filing
2026-03-31
Filing Quarter
Q1 2026
Portfolio Overview
Diameter Capital Partners LP disclosed 29 positions worth $1.1B in its Form 13F-HR for Q1 2026 — $522.4M in common stock plus $545.9M of put/call option positions (reported at underlying notional value, not premium at risk), led by $SPY (SPDR S&P 500 ETF TRUST) puts, followed by $ECHO. During the quarter the fund opened 13 new positions and exited 24 — including a new stake in $SPY and a full exit from $TDS. The portfolio is most concentrated in Communication Services (43.2% of disclosed assets). All figures are sourced directly from Diameter Capital Partners LP’s Form 13F-HR filing with the SEC under CIK 1727012.
AI Fund Analysis
ConcentratingSector Allocation
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.
Quarterly Activity — Q1 2026
Click any card to unlockTop Holdings
- —
Quality
$325.2M500,000 sh - 29.5#2,405
Quality
$172.2M1,470,584 sh ISHARES TR PUT
—Quality
$99.2M400,000 sh- —
Quality
$53.3M5,681,528 sh NEBIUS GROUP N.V.
—Quality
$38.5M40,000,000 shNEBIUS GROUP N.V.
—Quality
$37.2M40,000,000 sh- 48.7
Quality
$26.5M680,000 sh - 55.3
Quality
$25.3M6,000 sh - 51.3
Quality
$24.9M1,050,429 sh - 44.3
Quality
$24.3M920,600 sh
| Company | Quality | Value | Shares |
|---|---|---|---|
 SPDR S&P 500 ETF TRUST$SPYPUT | — | $325.2M | 500,000 |
 EchoStar CORP$ECHO | 29.5#2,405 | $172.2M | 1,470,584 |
| ISHARES TR PUT | — | $99.2M | 400,000 |
 Uniti Group Inc.$UNIT | — | $53.3M | 5,681,528 |
| NEBIUS GROUP N.V. | — | $38.5M | 40,000,000 |
| NEBIUS GROUP N.V. | — | $37.2M | 40,000,000 |
 Fortune Brands Innovations, Inc.$FBIN | 48.7 | $26.5M | 680,000 |
 Booking Holdings Inc.$BKNGPUT | 55.3 | $25.3M | 6,000 |
 Sila Realty Trust, Inc.$SILA | 51.3 | $24.9M | 1,050,429 |
 Caesars Entertainment, Inc.$CZRCALL | 44.3 | $24.3M | 920,600 |
Unlock AI quality scores for every holding
32-signal composite ranking on each of Diameter Capital Partners LP's 29 positions.
Showing top 10 of 29 holdings.
Sector Allocation
Communication Services
$225.5M
Other
$130.9M
Industrials
$55.0M
Real Estate
$24.9M
Utilities
$21.1M
Financials
$21.0M
Consumer Discretionary
$17.1M
Technology
$14.6M
Full Holdings — Diameter Capital Partners LP (Q1 2026)
All 29 disclosed positions from the latest Form 13F-HR, with quarter-over-quarter share changes and 13F Pro quality scores. Sourced from SEC EDGAR.
| # | Ticker | Company | Value | Weight | QoQ | Quality |
|---|---|---|---|---|---|---|
| 1 | $SPYPUT | SPDR S&P 500 ETF TRUST | $325.2M | — | NEW | — |
| 2 | $ECHO | EchoStar CORP | $172.2M | 33.0% | -61% | 29.5 |
| 3 | — | ISHARES TR | $99.2M | — | NEW | — |
| 4 | $UNIT | Uniti Group Inc. | $53.3M | 10.2% | +279% | — |
| 5 | — | NEBIUS GROUP N.V. | $38.5M | 7.4% | NEW | — |
| 6 | — | NEBIUS GROUP N.V. | $37.2M | 7.1% | NEW | — |
| 7 | $FBIN | Fortune Brands Innovations, Inc. | $26.5M | 5.1% | NEW | 48.7 |
| 8 | $BKNGPUT | Booking Holdings Inc. | $25.3M | — | NEW | 55.3 |
| 9 | $SILA | Sila Realty Trust, Inc. | $24.9M | 4.8% | -40% | 51.3 |
| 10 | $CZRCALL | Caesars Entertainment, Inc. | $24.3M | — | -39% | 44.3 |
| 11 |  $HCAPUT | HCA Healthcare, Inc. | $22.2M | — | -61% | 70.5 |
| 12 |  $PCG | PG&E Corp | $21.1M | 4.0% | NEW | 59.3 |
| 13 |  $UWMC | UWM Holdings Corp | $21.0M | 4.0% | NEW | 49.4 |
| 14 | — | ARK ETF TR | $20.3M | — | NEW | — |
| 15 | — | SELECT SECTOR SPDR TR | $20.2M | — | NEW | — |
| 16 |  $AMBP | Ardagh Metal Packaging S.A. | $18.1M | 3.5% | -17% | — |
| 17 |  $NCDL | Nuveen Churchill Direct Lending Corp. | $17.5M | 3.4% | +13% | — |
| 18 |  $VISN | Vistance Networks, Inc. | $14.6M | 2.8% | NEW | 43.9 |
| 19 |  $PFLA | PennantPark Floating Rate Capital Ltd. | $13.3M | 2.5% | +40% | — |
| 20 |  $MBC | MasterBrand, Inc. | $12.8M | 2.5% | -74% | 41.5 |
| 21 |  $BBDC | Barings BDC, Inc. | $12.1M | 2.3% | +52% | — |
| 22 |  $SLRC | SLR Investment Corp. | $11.8M | 2.3% | +109% | — |
| 23 |  $MAGN | Magnera Corp | $11.5M | 2.2% | +0% | 53.2 |
| 24 |  $CMCO | COLUMBUS MCKINNON CORP | $10.4M | 2.0% | NEW | 42.3 |
| 25 |  $GOOGCALL | Alphabet Inc. | $7.2M | — | -67% | 80.2 |
| 26 |  $RH | RH | $4.3M | 0.8% | -58% | 53.2 |
| 27 | $ECHOCALL | EchoStar CORP | $2.0M | — | NEW | 29.5 |
| 28 |  $JHX | James Hardie Industries plc | $947,000 | 0.2% | -95% | — |
| 29 | — | LIBERTY MEDIA CORP DEL | $320,292 | 0.1% | -0% | — |
New Positions (13)
$SPYPUT SPDR S&P 500 ETF TRUST$325.2M$FBIN Fortune Brands Innovations, Inc.$26.5M$BKNGPUT Booking Holdings Inc.$25.3M$PCG PG&E Corp$21.1M$UWMC UWM Holdings Corp$21.0M$VISN Vistance Networks, Inc.$14.6M$CMCO COLUMBUS MCKINNON CORP$10.4M$ECHOCALL EchoStar CORP$2.0MExited Positions (24)
$TDS TELEPHONE & DATA SYSTEMS INC /DE/
$BABA Alibaba Group Holding Ltd
$FSK FS KKR Capital Corp
$AES AES CORP
$AALPUT American Airlines Group Inc.
$BCSS Bain Capital GSS Investment Corp.$CZR Caesars Entertainment, Inc.
$ETR ENTERGY CORP /DE/
$DBRG DigitalBridge Group, Inc.
$EVRG Evergy, Inc.
$FIVN Five9, Inc.
$MFIC MidCap Financial Investment Corp
$MDLN Medline Inc.
$WOLF WOLFSPEED, INC.
$OPTU Optimum Communications, Inc.Browse Top Institutional Investors
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