Diameter Capital Partners LP
CIK 1727012 · View on SEC EDGAR ↗
- Portfolio value
- $1.2B
- Positions
- 34
- As of
- June 30, 2026
#2,101 of 9,443 by 13F value · top 22.2%
Portfolio value QoQ: +16.1% 13F does not disclose cash
- Top 10 holdings weight
- 79.12%
- Top 25 holdings weight
- 97.16%
- Positions above 1%
- 18
- Effective number of positions
- 8.2
Based on 13F long-equity holdings only (cash, bonds, shorts not disclosed)
Turnover Q2 2026: 46.14% Est. buys $721,383,900 · sells $532,589,887
Median holding: 1.0 quarters Tracked Q4 2024–Q2 2026 · 27.2% still held
- New positions
- 19
- Increased
- 5
- Decreased
- 7
- Closed
- 11
Put-notional exposure: 24.1% puts 13F reports option positions at underlying notional value — may include hedges, not necessarily bearish bets
On this page
- Performance vs S&P How this manager's 13F portfolio performed against the S&P 500.
- Sector breakdown How the portfolio splits across market sectors.
- Portfolio Every stock this institution reports holding, from its latest 13F.
- Biggest new bets Brand-new positions opened in the latest quarter.
- Top moves The biggest position increases and decreases this quarter.
- Exited positions Positions the manager fully sold out of last quarter.
Performance vs S&P 500
Annualized: +121.3% · S&P 500: +28.7%
Approximates a buy-and-hold portfolio built from quarterly SEC 13F snapshots. Excludes cash, short positions, options/derivatives, and non-13(f) securities — reflects the disclosed long-equity book only, not total fund AUM. SEC filing lag is up to 45 days; this is not a real-time-copyable timing.
Priceable coverage: 91.6% · Options excluded: 41.8%
Sector breakdown
Industrials
10.4%
Telecommunication
8.7%
Communication Services
5.3%
Energy
2.6%
Packaging
1.9%
Financial Services
1.6%
Paper & Forest
1.1%
Real Estate
1.1%
Consumer Discretionary
1.0%
Health Care
0.5%
Logistics & Transportation
0.4%
Other/Unmapped
65.3%
Full portfolio 34 positions
| Type | Streak | 8Q trend | |||||
|---|---|---|---|---|---|---|---|
| SPY SPY | $298,708,000 | 24.09% | 400,000 | Put option | $-26,462,000 | Down ×1 | |
| IAU | $253,985,436 | 20.48% | 3,363,600 | Up ×1 | |||
| Unknown issuer (CUSIP: 778920AC2) | $126,682,553 | 10.22% | 108,500,000 | Up ×1 | |||
| TDS Telephone and Data Systems, Inc. Common Shares | $62,027,095 | 5.00% | 1,675,955 | ||||
| MBC MasterBrand, Inc. Common Stock | $49,180,489 | 3.97% | 4,779,445 | $36,336,794 | Up ×1 | ||
| UNIT Uniti Group Inc. - Common Stock | $45,880,000 | 3.70% | 4,000,000 | $-7,412,733 | Down ×1 | ||
| Unknown issuer (CUSIP: 84615Q103) | $42,715,000 | 3.44% | 250,000 | Up ×1 | |||
| FBIN Fortune Brands Innovations, Inc. Common Stock | $38,229,615 | 3.08% | 696,350 | $11,730,015 | Up ×1 | ||
| SATS EchoStar Corporation - Common stock | $33,165,531 | 2.67% | 326,754 | $-138,995,738 | Down ×3 | ||
| JHX James Hardie Industries plc. Ordinary Shares | $30,685,892 | 2.47% | 1,172,112 | $29,738,892 | Up ×1 | ||
| Unknown issuer (CUSIP: 97785WAC0) | $29,688,166 | 2.39% | 11,970,000 | Up ×1 | |||
| AMBP Ardagh Metal Packaging S.A. Ordinary Shares | $23,844,404 | 1.92% | 5,030,465 | $5,751,353 | Up ×1 | ||
| VISN Vistance Networks, Inc. - Common Stock | $22,365,000 | 1.80% | 1,750,000 | $7,805,000 | Up ×1 | ||
| CMCSA Comcast Corporation - Class A Common Stock | $20,622,000 | 1.66% | 840,000 | Up ×1 | |||
| OVV Ovintiv Inc. (DE) | $20,533,500 | 1.66% | 390,000 | Up ×1 | |||
| Unknown issuer (CUSIP: 09173BAA5) | $14,589,681 | 1.18% | 12,500,000 | Up ×1 | |||
| MAGN Magnera Corporation Common Stock | $14,168,068 | 1.14% | 1,205,793 | $2,700,977 | |||
| SILA Sila Realty Trust, Inc. Common Stock | $13,281,680 | 1.07% | 437,473 | $-11,592,479 | Down ×2 | ||
| SEI Solaris Energy Infrastructure, Inc. Class A Common Stock | $12,069,000 | 0.97% | 150,000 | Up ×1 | |||
| CMCO Columbus McKinnon Corporation - Common Stock | $10,829,797 | 0.87% | 715,783 | $429,470 | |||
| CHTR Charter Communications, Inc. - Class A Common Stock | $10,665,750 | 0.86% | 75,000 | Up ×1 | |||
| Unknown issuer (CUSIP: 486917AA5) | $8,895,307 | 0.72% | 8,000,000 | Up ×1 | |||
| Unknown issuer (CUSIP: 15675D103) | $7,735,000 | 0.62% | 35,000 | Up ×1 | |||
| NCDL Nuveen Churchill Direct Lending Corp. Common Stock | $7,509,691 | 0.61% | 604,645 | $-10,035,781 | Down ×1 | ||
| WING Wingstop Inc. - Common Stock | $6,936,400 | 0.56% | 40,000 | Up ×1 | |||
| PFLT PennantPark Floating Rate Capital Ltd. Common Stock | $6,732,000 | 0.54% | 900,000 | $-6,576,178 | Down ×1 | ||
| CYH Community Health Systems, Inc. Common Stock | $6,138,793 | 0.49% | 1,837,962 | Up ×1 | |||
| CGBD Carlyle Secured Lending, Inc. - Closed End Fund | $5,353,315 | 0.43% | 508,387 | Up ×1 | |||
| EAT Brinker International, Inc. Common Stock | $4,956,000 | 0.40% | 29,500 | Up ×1 | |||
| FWRD Forward Air Corporation - Common Stock | $4,728,500 | 0.38% | 350,000 | Up ×1 | |||
| MWH SOLV Energy, Inc. - Class A common stock | $2,724,000 | 0.22% | 80,000 | Up ×1 | |||
| Unknown issuer (CUSIP: N52A8C105) | $1,977,500 | 0.16% | 50,000 | Up ×1 | |||
| SATS EchoStar Corporation - Common stock | $1,735,650 | 0.14% | 17,100 | Call option | $-266,247 | ||
| BBDC Barings BDC, Inc. Common Stock | $822,938 | 0.07% | 96,589 | $-11,289,976 | Down ×1 | ||
| No matches | |||||||
Biggest new bets
New positions opened this quarter, largest first.
| Security | Value | Shares | % of portfolio |
|---|---|---|---|
| IAU | $253,985,436 | 3,363,600 | 20.48% |
| Unknown issuer (CUSIP: 778920AC2) | $126,682,553 | 108,500,000 | 10.22% |
| TDS | $62,027,095 | 1,675,955 | 5.00% |
| Unknown issuer (CUSIP: 84615Q103) | $42,715,000 | 250,000 | 3.44% |
| Unknown issuer (CUSIP: 97785WAC0) | $29,688,166 | 11,970,000 | 2.39% |
| CMCSA | $20,622,000 | 840,000 | 1.66% |
| OVV | $20,533,500 | 390,000 | 1.66% |
| Unknown issuer (CUSIP: 09173BAA5) | $14,589,681 | 12,500,000 | 1.18% |
| SEI | $12,069,000 | 150,000 | 0.97% |
| CHTR | $10,665,750 | 75,000 | 0.86% |
| Unknown issuer (CUSIP: 486917AA5) | $8,895,307 | 8,000,000 | 0.72% |
| Unknown issuer (CUSIP: 15675D103) | $7,735,000 | 35,000 | 0.62% |
| WING | $6,936,400 | 40,000 | 0.56% |
| CYH | $6,138,793 | 1,837,962 | 0.49% |
| CGBD | $5,353,315 | 508,387 | 0.43% |
Top movers (QoQ)
| Security | Action | Shares Δ | Value Δ |
|---|---|---|---|
| MBC | Bought more | +3.2M | +$36.3M |
| SPY | Trimmed | -100K | -$26.5M |
| FBIN | Bought more | +16K | +$11.7M |
| SILA | Trimmed | -613K | -$11.6M |
| NCDL | Trimmed | -775K | -$10.0M |
| VISN | Bought more | +950K | +$7.8M |
| UNIT | Trimmed | -1.7M | -$7.4M |
| PFLT | Trimmed | -755K | -$6.6M |
| AMBP | Bought more | +563K | +$5.8M |
| MAGN | Price move only | +0 | +$2.7M |
3 positions hidden (data completeness check)
Exited positions
Includes corporate events (mergers, delistings) — not all exits are sells
Closed positions reflect 13F reporting changes; for index managers these are often mechanical (delisting, M&A, index rebalancing), not active decisions.
| Security | Quarter | Shares before | Value before | Price since exit |
|---|---|---|---|---|
| SPY | Dec. 31, 2025 | 642,000 | $427,687,560 | No longer tracked |
| BKLN | June 30, 2025 | 7,000,000 | $144,900,000 | No longer tracked |
| IWM | June 30, 2026 | 400,000 | $99,200,000 | No longer tracked |
| IWM | Dec. 31, 2025 | 285,000 | $68,958,600 | No longer tracked |
| BAPRA | March 31, 2025 | 1,000,000 | $60,879,833 | No longer tracked |
| UNH | March 31, 2025 | 120,000 | $60,703,200 | -25.1% |
| WBD | Dec. 31, 2025 | 2,250,000 | $43,942,500 | -1.6% |
| TDS | March 31, 2026 | 1,067,297 | $43,759,177 | -17.3% |
| VISN | Sept. 30, 2025 | 4,841,158 | $40,084,788 | -27.7% |
| FSK | March 31, 2026 | 2,272,393 | $33,654,140 | 19.0% |
| HUM | March 31, 2025 | 132,500 | $33,616,575 | 44.7% |
| CORZ | March 31, 2025 | 2,265,000 | $31,823,250 | 160.8% |
| NVRI | Dec. 31, 2025 | 2,455,854 | $31,164,787 | No longer tracked |
| CLF | Dec. 31, 2025 | 2,500,000 | $30,500,000 | -19.8% |
| AES | March 31, 2026 | 1,950,000 | $27,963,000 | 4.5% |
| SLM | Dec. 31, 2025 | 1,000,000 | $27,680,000 | -2.5% |
| BKNG | June 30, 2026 | 6,000 | $25,261,920 | 19.3% |
| NBIS | June 30, 2025 | 1,190,476 | $25,130,948 | 290.4% |
| CZR | June 30, 2026 | 920,600 | $24,331,458 | -1.9% |
| RDDT | Dec. 31, 2025 | 100,000 | $22,999,000 | -35.5% |
| AAL | March 31, 2026 | 1,500,000 | $22,995,000 | 26.9% |
| HCA | June 30, 2026 | 47,000 | $22,242,280 | 5.3% |
| DG | Dec. 31, 2025 | 211,800 | $21,889,530 | -8.2% |
| OXY | Dec. 31, 2025 | 450,000 | $21,262,500 | 50.4% |
| PCG | June 30, 2026 | 1,200,000 | $21,084,000 | 7.7% |
| UWMC | June 30, 2026 | 5,800,000 | $20,996,000 | -36.7% |
| BCSSU | March 31, 2026 | 2,000,000 | $20,440,000 | No longer tracked |
| ARKK | June 30, 2026 | 300,000 | $20,277,000 | No longer tracked |
| XLI | June 30, 2026 | 125,000 | $20,216,250 | No longer tracked |
| LUMN | Dec. 31, 2025 | 3,300,000 | $20,196,000 | -21.5% |
| SAP | Dec. 31, 2025 | 75,000 | $20,040,750 | -11.0% |
| MCY | June 30, 2025 | 350,000 | $19,565,000 | 54.0% |
| ETR | March 31, 2026 | 208,000 | $19,225,440 | -3.5% |
| DBRG | March 31, 2026 | 1,250,000 | $19,175,000 | 3.2% |
| AL | Dec. 31, 2025 | 300,000 | $19,095,000 | No longer tracked |
| EVRG | March 31, 2026 | 260,000 | $18,847,400 | 2.9% |
| BLCO | Dec. 31, 2025 | 1,215,893 | $18,323,508 | 2.2% |
| BKNG | Dec. 31, 2025 | 3,300 | $17,817,591 | -96.0% |
| TAC | March 31, 2025 | 1,250,000 | $17,678,876 | 36.5% |
| CCO | Sept. 30, 2025 | 15,000,000 | $17,550,000 | 50.0% |
| MOS | Dec. 31, 2025 | 500,000 | $17,340,000 | -5.0% |
| PRIM | March 31, 2025 | 200,000 | $15,280,000 | 39.3% |
| DLTR | Dec. 31, 2025 | 155,300 | $14,655,661 | 5.4% |
| HPP | Dec. 31, 2025 | 5,140,426 | $14,187,576 | 34.7% |
| ATI | June 30, 2025 | 270,000 | $14,048,100 | 147.3% |
| CVS | March 31, 2025 | 300,000 | $13,467,000 | 38.8% |
| SLRC | June 30, 2026 | 827,099 | $11,835,787 | 3.3% |
| MFIC | March 31, 2026 | 1,013,005 | $11,588,777 | -11.7% |
| CTSH | March 31, 2025 | 149,800 | $11,519,620 | -19.9% |
| UWMC | Sept. 30, 2025 | 2,750,000 | $11,385,000 | -76.2% |
| MDLN | March 31, 2026 | 250,000 | $10,500,000 | -23.7% |
| ETHZ | Dec. 31, 2025 | 3,903,288 | $9,406,924 | No longer tracked |
| CIEN | Dec. 31, 2025 | 62,000 | $9,031,540 | 67.7% |
| HUM | Sept. 30, 2025 | 35,000 | $8,556,800 | 47.1% |
| FWONK | Dec. 31, 2025 | 80,000 | $8,356,000 | 6.2% |
| LITE | Dec. 31, 2025 | 48,000 | $7,810,080 | 122.6% |
| GOOGL | June 30, 2026 | 25,000 | $7,189,000 | -4.0% |
| VEON | June 30, 2025 | 164,186 | $7,160,151 | 22.4% |
| BHC | June 30, 2025 | 1,096,900 | $7,096,943 | 2.8% |
| JCAP | Sept. 30, 2025 | 350,000 | $6,457,500 | 33.8% |
| BAH | March 31, 2025 | 50,000 | $6,435,000 | -25.1% |
| NESR | June 30, 2025 | 843,506 | $6,208,204 | 468.9% |
| WOLF | March 31, 2026 | 347,427 | $6,048,704 | 59.5% |
| OPTU | March 31, 2026 | 3,188,947 | $5,261,763 | -33.8% |
| GLNG | Sept. 30, 2025 | 105,000 | $4,324,950 | 30.6% |
| RH | June 30, 2026 | 30,725 | $4,295,970 | -1.1% |
| METC | Dec. 31, 2025 | 125,000 | $4,148,750 | -33.4% |
| NBR | Dec. 31, 2025 | 100,000 | $4,087,000 | 69.1% |
| ULS | March 31, 2026 | 50,000 | $3,943,000 | -11.7% |
| JBLU | Sept. 30, 2025 | 750,000 | $3,172,500 | -2.4% |
| HUT | March 31, 2025 | 130,000 | $2,663,700 | 620.2% |
| MERC | March 31, 2026 | 1,100,397 | $2,178,786 | -67.8% |
| HI | Dec. 31, 2025 | 75,000 | $2,028,000 | No longer tracked |
| PRIV | June 30, 2025 | 63,800 | $1,598,190 | No longer tracked |
| CEPF | Dec. 31, 2025 | 150,000 | $1,527,750 | 1.1% |
| LLY | March 31, 2026 | 1,350 | $1,450,818 | 37.9% |
| MRK | March 31, 2026 | 13,750 | $1,447,325 | 25.0% |
| NVS | March 31, 2026 | 10,400 | $1,433,848 | 4.1% |
| AZN | March 31, 2026 | 15,000 | $1,378,950 | -17.2% |
| SNY | March 31, 2026 | 28,000 | $1,356,880 | -5.7% |
| PFE | March 31, 2026 | 53,000 | $1,319,700 | -0.9% |
| DMIIU | Dec. 31, 2025 | 100,000 | $994,500 | 1.8% |
| FCRSU | Dec. 31, 2025 | 25,000 | $265,000 | No longer tracked |