Diameter Capital Partners LP
CIK 1727012 · Holdings on Sep 30, 2025 · First reported Nov 14, 2025
Top ten holdings
Q3 2025- ECHO47.80%
- MBC7.00%
- WBD4.61%
- TDS4.22%
- 1462805083.69%
- 4158641073.27%
- AES2.52%
- OPTU2.47%
- OXY2.23%
- AMBP2.13%
Share classes counted separately79.94%
Portfolio value by quarter
What changed this quarter?
Within preview · weight change- ECHOWeight increased · +22.48 pp25.32% → 47.80%Shares +2.68M (+81.86%)
- WBDWeight decreased · -6.25 pp10.86% → 4.61%Shares -1.15M (-33.82%)
- MBCWeight increased · +3.95 pp3.05% → 7.00%Shares +4.06M (+406.04%)
Weight = security value ÷ total reported holdings value. Changes are in percentage points; price moves also affect weights, so they are not trade sizes.
Top 10 holdings 25
USD · B = billion · M = million; expand a row for exact values| # | Security | Value | Weight | Quantity | Weight / quantity change | Activity | |
|---|---|---|---|---|---|---|---|
| 01 | ECHOECHOSTAR CORP-ACL A View history and evidence | $455.35M | 47.80% | 5.96M shares | 25.32% → 47.80%+22.48 pp +2.68M (+81.86%) | Added | ↗▾ |
| 02 | MBCMASTERBRAND INCCOMMON STOCK View history and evidence | $66.65M | 7.00% | 5.06M shares | 3.05% → 7.00%+3.95 pp +4.06M (+406.04%) | Added | ↗▾ |
| 03 | WBDWARNER BROS DISCOVERY INCCOM SER A View history and evidence | $43.94M | 4.61% | 2.25M shares | 10.86% → 4.61%-6.25 pp -1.15M (-33.82%) | Reduced | ↗▾ |
| 04 | TDSTELEPHONE AND DATA SYSTEMSCOM NEW View history and evidence | $40.22M | 4.22% | 1.02M shares | 4.36% → 4.22%-0.14 pp +585.00K (+132.95%) | Added | ↗▾ |
| 05 | 146280508SILA REALTY TRUST INCCOMMON STOCK View history and evidence | $35.19M | 3.69% | 1.40M shares | 4.43% → 3.69%-0.74 pp +731.13K (+109.01%) | Added | ↗▾ |
| 06 | 415864107ENVIRI CORP View history and evidence | $31.16M | 3.27% | 2.46M shares | 5.10% → 3.27%-1.83 pp +349.21K (+16.58%) | Added | ↗▾ |
| 07 | AESAES CORP View history and evidence | $24.02M | 2.52% | 1.82M shares | Prior unavailable +1.82M | New | ↗▾ |
| 08 | OPTUOPTIMUM COMMUNICATIONS INC-ACL A View history and evidence | $23.55M | 2.47% | 9.77M shares | 4.50% → 2.47%-2.03 pp +2.22M (+29.45%) | Added | ↗▾ |
| 09 | OXYOCCIDENTAL PETROLEUM CORP View history and evidence | $21.26M | 2.23% | 450.00K shares | Prior unavailable +450.00K | New | ↗▾ |
| 10 | AMBPARDAGH METAL PACKAGING SASHS View history and evidence | $20.31M | 2.13% | 5.09M shares | 2.24% → 2.13%-0.11 pp +3.22M (+171.58%) | Added | ↗▾ |
Options overlay 10
$669.57M notionalPut and Call positions are separate. Notional is based on underlying securities, not option premium, market value or net exposure. Quantities are underlying shares.
| Security | Put / Call | Underlying shares | Notional | Quantity change | |
|---|---|---|---|---|---|
SPYSS SPDR S&P 500 ETF TRUST-USTR UNIT View history and evidence | Put | 642.00K | $427.69M | +642.00K | ▾ |
IWMISHARES RUSSELL 2000 ETFRUSSELL 2000 ETF View history and evidence | Put | 285.00K | $68.96M | -1.24M (-81.31%) | ▾ |
CLFCLEVELAND-CLIFFS INC View history and evidence | Call | 2.50M | $30.50M | +2.50M | ▾ |
3 / 10 options · preview only
Exited positions 12
| Security | Type | Shares out | Value out | Previous filing | This filing |
|---|---|---|---|---|---|
| ECHO ECHOSTAR CORP-A | Call | -3,700,000 | -$102.49M | SEC filing ↗ | SEC filing ↗ |
| WBD WARNER BROS DISCOVERY INC | Call | -7,000,000 | -$80.22M | SEC filing ↗ | SEC filing ↗ |
| VISN VISTANCE NETWORKS INC | Non-derivative | -4,841,158 | -$40.08M | SEC filing ↗ | SEC filing ↗ |
3 / 12 preview exits. Up to 30 exit records are previewed. Exit means absent from the current filing; execution date, price and proceeds are unknown.
Every number has a source.
CIK 1727012 · Period 2025-09-30
Data loaded 2026-09-23 · First reported 2025-11-14
Amendments and versions
{
"amendments_merged": null,
"prior_versions": null,
"cover_table_value": 1622207192
}Research all 41 reported holdings.
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