CSS LLC/IL
CIK 1103646 · Holdings on Jun 30, 2025 · First reported Aug 14, 2025
Top ten holdings
Q2 2025- 86333MAA64.80%
- 462222AD23.67%
- 472145AF83.33%
- 82452JAB52.75%
- 81180WBL42.21%
- 10950A2052.09%
- 57164YAD92.04%
- 594972AN12.03%
- 65339F7131.92%
- IMAX1.61%
Share classes counted separately26.45%
Portfolio value by quarter
What changed this quarter?
Within preview · weight change- 65339F713Weight increased · +1.91 pp0.01% → 1.92%Shares +756.50K (+14559.24%)
- 81180WBL4Weight increased · +1.80 pp0.41% → 2.21%Shares +14.63M (+303.11%)
- 060505682Weight increased · +1.42 pp0.03% → 1.45%Shares +18.53K (+5076.44%)
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 | 86333MAA6STRIDE INCNOTE 1.125% 9/0 View history and evidence | $75.94M | 4.80% | 27.27M principal (USD) | 4.64% → 4.80%+0.16 pp 0 (0.00%) | Unchanged | ↗▾ |
| 02 | 462222AD2IONIS PHARMACEUTICALS INNOTE 4/0 View history and evidence | $58.04M | 3.67% | 57.35M principal (USD) | 3.11% → 3.67%+0.56 pp +12.34M (+27.41%) | Added | ↗▾ |
| 03 | 472145AF8JAZZ INVESTMENTS I LTDNOTE 2.000% 6/1 View history and evidence | $52.63M | 3.33% | 52.05M principal (USD) | 3.51% → 3.33%-0.18 pp +3.50M (+7.21%) | Added | ↗▾ |
| 04 | 82452JAB5SHIFT4 PAYMENTS INCNOTE 12/1 View history and evidence | $43.54M | 2.75% | 34.47M principal (USD) | 1.69% → 2.75%+1.06 pp +13.21M (+62.12%) | Added | ↗▾ |
| 05 | 81180WBL4SEAGATE HDD CAYMANNOTE 3.500% 6/0 View history and evidence | $34.99M | 2.21% | 19.46M principal (USD) | 0.41% → 2.21%+1.80 pp +14.63M (+303.11%) | Added | ↗▾ |
| 06 | 10950A205BRIGHTSPRING HEALTH SERVUNIT 02/01/2027 View history and evidence | $33.03M | 2.09% | 400.47K shares | Prior unavailable +400.47K | New | ↗▾ |
| 07 | 57164YAD9MARRIOTT VACATION WORLDWNOTE 1/1 View history and evidence | $32.31M | 2.04% | 33.30M principal (USD) | 2.23% → 2.04%-0.19 pp 0 (0.00%) | Unchanged | ↗▾ |
| 08 | 594972AN1STRATEGY INCNOTE 2.250% 6/1 View history and evidence | $32.05M | 2.03% | 14.90M principal (USD) | Prior unavailable +14.90M | New | ↗▾ |
| 09 | 65339F713NEXTERA ENERGY INCUNIT 09/01/2025 View history and evidence | $30.30M | 1.92% | 761.69K shares | 0.01% → 1.92%+1.91 pp +756.50K (+14559.24%) | Added | ↗▾ |
| 10 | IMAXIMAX CORPNOTE 0.500% 4/0 View history and evidence | $25.50M | 1.61% | 22.65M principal (USD) | 1.69% → 1.61%-0.08 pp +650.00K (+2.95%) | Added | ↗▾ |
Options overlay 280
$562.86M 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 | |
|---|---|---|---|---|---|
MSTRSTRATEGY INCCL A NEW View history and evidence | Put | 273.50K | $110.56M | +23.10K (+9.23%) | ▾ |
SPYSS SPDR S&P 500 ETF TRUST-USTR UNIT View history and evidence | Call | 74.00K | $45.72M | +38.00K (+105.56%) | ▾ |
GMEGAMESTOP CORP-CLASS ACL A View history and evidence | Put | 1.44M | $35.13M | +1.02M (+244.45%) | ▾ |
3 / 280 options · preview only
Exited positions 292
| Security | Type | Shares out | Value out | Previous filing | This filing |
|---|---|---|---|---|---|
| 457669AB5 INSMED INC | Non-derivative | -22,586,000 | -$53.41M | SEC filing ↗ | SEC filing ↗ |
| 707569AU3 PENN ENTERTAINMENT INC | Non-derivative | -33,700,000 | -$34.59M | SEC filing ↗ | SEC filing ↗ |
| 844741BG2 SOUTHWEST AIRLINES CO | Non-derivative | -24,500,000 | -$24.43M | SEC filing ↗ | SEC filing ↗ |
3 / 292 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 1103646 · Period 2025-06-30
Data loaded 2026-09-23 · First reported 2025-08-14
Amendments and versions
{
"amendments_merged": null,
"prior_versions": null,
"cover_table_value": 2144550457
}Research all 953 reported holdings.
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