Diameter Capital Partners LP
CIK
1727012
Location
New York, NY
Portfolio Value
Small
$852,513,793
Diversification
Moderately concentrated
Filing Date
Global Rank
#1,945
/ 8,622
▼ 137
· as of Mar 2026
Top Industry
Telecom Services
33.0%
3Y Alpha vs SPY
+44.8%
Period ended 4 months ago
Filed May 15, 2026 · 2mo
25 quarters · since Mar 2020
Clone Performance
Jul 2023–Jul 2026 · vs SPYHypothetical growth of buying every stock this filer reported holding, rebalancing on each filing and indexed to the same start. Option positions cannot be bought this way and are left out.
Not a measure of this manager's performance.
Most of Diameter Capital Partners LP's reported book is option positions, which a stock-only clone
cannot replicate. The figures below are the return of the
50% that is ordinary stock — as little as
8% in one quarter — so a manager whose options
thesis lost money can still show a large gain here.
Cloned portfolio
+340.2%
SPY
+67.9%
Annualised alpha
+45.0%
Max drawdown
−34.3%
Estimate. 13F holdings are quarter-lagged, so the clone rebalances about 45 days after each period end — when the filing becomes public — and it excludes option and short positions. It tracks 50% of reported value on average across 13 quarters. Past performance does not predict future results.
Portfolio Concentration
22 tracked positions · as of Mar 31, 2026 · Δ vs Dec 31, 2025Top Position
38.1%
−2.4 pts
Top 5
70.9%
+8.5 pts
Top 10
84.2%
+7.0 pts
HHI
1,990
Moderately concentrated+144
Portfolio Trend
25 quarters · across all stocks
Sector Breakdown
As of Mar 31, 2026| Sector | % Portfolio | Value |
|---|---|---|
| Unclassified | 38.1% | $325,170,000 |
| Communication Services | 21.3% | $181,352,165 |
| Consumer Cyclical | 10.0% | $84,826,093 |
| Real Estate | 9.2% | $78,166,890 |
| Financial Services | 8.9% | $75,798,348 |
| Industrials | 4.3% | $36,899,926 |
| Healthcare | 2.6% | $22,242,280 |
| Utilities | 2.5% | $21,084,000 |
| Technology | 1.7% | $14,560,000 |
| Consumer Defensive | 1.3% | $11,467,091 |
| Basic Materials | 0.1% | $947,000 |
Last Quarter's Activity
Export CSVAdded To
Positions the filer increased
5 positions
| Ticker | Company | Δ Shares | Shares | Value | Open |
|---|---|---|---|---|---|
| UNIT | Uniti Group Inc. | +4,181,528 | 5,681,528 | $53,292,732 | |
| BBDC | Barings BDC, Inc. | +505,430 | 1,471,800 | $12,112,914 | |
| PFLT | PennantPark Floating Rate Capital Ltd. | +470,770 | 1,655,246 | $13,308,177 | |
| SLRC | SLR Investment Corp. | +431,710 | 827,099 | $11,835,786 | |
| NCDL | Nuveen Churchill Direct Lending Corp. | +158,561 | 1,379,361 | $17,545,471 | |
| No positions match the current search. | |||||
Trimmed
Positions the filer reduced
9 positions
| Ticker | Company | Δ Shares | Shares | Value | Open |
|---|---|---|---|---|---|
| MBC | MasterBrand, Inc. | −4,464,839 | 1,545,571 | $12,843,695 | |
| ECHO | EchoStar CORP | −2,280,244 | 1,487,684 | $174,163,165 | |
| CZR | Caesars Entertainment, Inc. | −1,429,400 | 920,600 | $24,331,458 | |
| JHX | James Hardie Industries plc | −950,000 | 50,000 | $947,000 | |
| AMBP | Ardagh Metal Packaging S.A. | −908,946 | 4,467,420 | $18,093,051 | |
| SILA | Sila Realty Trust, Inc. | −699,571 | 1,050,429 | $24,874,158 | |
| HCA | HCA Healthcare, Inc. | −73,000 | 47,000 | $22,242,280 | |
| GOOGL | Alphabet Inc. | −50,000 | 25,000 | $7,189,000 | |
| RH | Rh | −42,275 | 30,725 | $4,295,969 | |
| No positions match the current search. | |||||
New Positions
Positions the filer opened this quarter
7 positions
| Ticker | Company | Shares | Value | Open |
|---|---|---|---|---|
| SPY | Spdr S&P 500 ETF Trust | 500,000 | $325,170,000 | |
| FBIN | Fortune Brands Innovations, Inc. | 680,000 | $26,499,600 | |
| BKNG | Booking Holdings Inc. | 6,000 | $25,261,920 | |
| PCG | PG&E Corp | 1,200,000 | $21,084,000 | |
| UWMC | UWM Holdings Corp | 5,800,000 | $20,996,000 | |
| VISN | Vistance Networks, Inc. | 800,000 | $14,560,000 | |
| CMCO | Columbus Mckinnon Corp | 715,783 | $10,400,326 | |
| No positions match the current search. | ||||
Sold Out
Positions the filer fully exited
18 positions
| Ticker | Company | Shares | Value | Open |
|---|---|---|---|---|
| TDS | Telephone & Data Systems Inc /De/ | 1,067,297 | $43,759,177 | |
| FSK | FS KKR Capital Corp | 2,272,393 | $33,654,140 | |
| AES | Aes Corp | 1,950,000 | $27,963,000 | |
| AAL | American Airlines Group Inc. | 1,500,000 | $22,995,000 | |
| ETR | Entergy Corp /De/ | 208,000 | $19,225,440 | |
| DBRG | DigitalBridge Group, Inc. | 1,250,000 | $19,175,000 | |
| EVRG | Evergy, Inc. | 260,000 | $18,847,400 | |
| MFIC | MidCap Financial Investment Corp | 1,013,005 | $11,588,777 | |
| MDLN | Medline Inc. | 250,000 | $10,500,000 | |
| WOLF | Wolfspeed, Inc. | 347,427 | $6,048,704 | |
| OPTU | Optimum Communications, Inc. | 3,188,947 | $5,261,762 | |
| ULS | UL Solutions Inc. | 50,000 | $3,943,000 | |
| MERC | Mercer International Inc. | 1,100,397 | $2,178,786 | |
| LLY | ELI LILLY & Co | 1,350 | $1,450,818 | |
| MRK | Merck & Co., Inc. | 13,750 | $1,447,325 | |
| NVS | Novartis AG | 10,400 | $1,433,848 | |
| SNY | Sanofi | 28,000 | $1,356,880 | |
| PFE | Pfizer Inc | 53,000 | $1,319,700 | |
| No positions match the current search. | ||||
22 tracked positions ·
$852,513,793 total
· as of Mar 31, 2026
All sectors
Basic Materials
Communication Services
Consumer Cyclical
Consumer Defensive
Financial Services
Healthcare
Industrials
Real Estate
Technology
Utilities
| Ticker | Company | Type | Shares | Value (USD) | % of Portfolio | History |
|---|---|---|---|---|---|---|
| SPY |
Spdr S&P 500 ETF Trust
PUT
|
NEW | 500,000 | $325,170,000 | 38.14% | |
| ECHO |
EchoStar CORP
CALL
+ SHARES
Communication Services
|
Reduced | 1,487,684 | $174,163,165 | 20.43% | |
| UNIT |
Uniti Group Inc.
Real Estate
|
Added | 5,681,528 | $53,292,732 | 6.25% | |
| FBIN |
Fortune Brands Innovations, Inc.
Industrials
|
NEW | 680,000 | $26,499,600 | 3.11% | |
| BKNG |
Booking Holdings Inc.
PUT
Consumer Cyclical
|
NEW | 6,000 | $25,261,920 | 2.96% | |
| SILA |
Sila Realty Trust, Inc.
Real Estate
|
Reduced | 1,050,429 | $24,874,158 | 2.92% | |
| CZR |
Caesars Entertainment, Inc.
CALL
Consumer Cyclical
|
Reduced | 920,600 | $24,331,458 | 2.85% | |
| HCA |
HCA Healthcare, Inc.
PUT
Healthcare
|
Reduced | 47,000 | $22,242,280 | 2.61% | |
| PCG |
PG&E Corp
Utilities
|
NEW | 1,200,000 | $21,084,000 | 2.47% | |
| UWMC |
UWM Holdings Corp
Financial Services
|
NEW | 5,800,000 | $20,996,000 | 2.46% | |
| AMBP |
Ardagh Metal Packaging S.A.
Consumer Cyclical
|
Reduced | 4,467,420 | $18,093,051 | 2.12% | |
| NCDL |
Nuveen Churchill Direct Lending Corp.
Financial Services
|
Added | 1,379,361 | $17,545,471 | 2.06% | |
| VISN |
Vistance Networks, Inc.
Technology
|
NEW | 800,000 | $14,560,000 | 1.71% | |
| PFLT |
PennantPark Floating Rate Capital Ltd.
Financial Services
|
Added | 1,655,246 | $13,308,177 | 1.56% | |
| MBC |
MasterBrand, Inc.
Consumer Cyclical
|
Reduced | 1,545,571 | $12,843,695 | 1.51% | |
| BBDC |
Barings BDC, Inc.
Financial Services
|
Added | 1,471,800 | $12,112,914 | 1.42% | |
| SLRC |
SLR Investment Corp.
Financial Services
|
Added | 827,099 | $11,835,786 | 1.39% | |
| MAGN |
Magnera Corp
Consumer Defensive
|
Held | 1,205,793 | $11,467,091 | 1.35% | |
| CMCO |
Columbus Mckinnon Corp
Industrials
|
NEW | 715,783 | $10,400,326 | 1.22% | |
| GOOGL |
Alphabet Inc.
CALL
Communication Services
|
Reduced | 25,000 | $7,189,000 | 0.84% | |
| RH |
Rh
Consumer Cyclical
|
Reduced | 30,725 | $4,295,969 | 0.50% | |
| JHX |
James Hardie Industries plc
Basic Materials
|
Reduced | 50,000 | $947,000 | 0.11% |
Covers the securities this platform tracks: U.S.-listed common stock and the put/call positions reported on it. A 13F can also report security types outside that coverage — preferred shares, bonds, warrants, untracked share classes — so the filing's own declared total can exceed the figures above. The source filing is linked at the top of this table.