CSS LLC/IL
CIK 1103646 · Holdings on Dec 31, 2024 · First reported Feb 18, 2025
Top ten holdings
Q4 2024- 05464CAB74.78%
- 02376RAF94.72%
- 86333MAA63.27%
- 16115Q4073.10%
- 704551AD22.84%
- 03769M3042.54%
- 472145AF82.47%
- 457669AB52.28%
- VOO2.23%
- 462222AD21.99%
Share classes counted separately30.22%
Portfolio value by quarter
What changed this quarter?
Within preview · weight change- 03769M304Weight increased · +2.14 pp0.40% → 2.54%Shares +388.80K (+386.60%)
- 02376RAF9Weight increased · +1.30 pp3.42% → 4.72%Shares +10.37M (+18.09%)
- 05464CAB7Weight increased · +1.14 pp3.64% → 4.78%Shares -4.00M (-11.51%)
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 | 05464CAB7AXON ENTERPRISE INCNOTE 0.500%12/1 View history and evidence | $80.25M | 4.78% | 30.75M principal (USD) | 3.64% → 4.78%+1.14 pp -4.00M (-11.51%) | Reduced | ↗▾ |
| 02 | 02376RAF9AMERICAN AIRLINES GROUPNOTE 6.500% 7/0 View history and evidence | $79.23M | 4.72% | 67.68M principal (USD) | 3.42% → 4.72%+1.30 pp +10.37M (+18.09%) | Added | ↗▾ |
| 03 | 86333MAA6STRIDE INCNOTE 1.125% 9/0 View history and evidence | $54.96M | 3.27% | 27.27M principal (USD) | 2.89% → 3.27%+0.38 pp -2.21M (-7.51%) | Reduced | ↗▾ |
| 04 | 16115Q407CHART INDUSTRIES INC6.75DP CNV PFD B View history and evidence | $51.99M | 3.10% | 733.80K shares | Prior unavailable +733.80K | New | ↗▾ |
| 05 | 704551AD2PEABODY ENERGY CORPNOTE 3.250% 3/0 View history and evidence | $47.63M | 2.84% | 37.52M principal (USD) | 2.80% → 2.84%+0.04 pp +5.50M (+17.18%) | Added | ↗▾ |
| 06 | 03769M304APOLLO GLOBAL MANAGEMENTSER A MAND CNV View history and evidence | $42.65M | 2.54% | 489.36K shares | 0.40% → 2.54%+2.14 pp +388.80K (+386.60%) | Added | ↗▾ |
| 07 | 472145AF8JAZZ INVESTMENTS I LTDNOTE 2.000% 6/1 View history and evidence | $41.47M | 2.47% | 40.95M principal (USD) | 1.59% → 2.47%+0.88 pp +13.50M (+49.18%) | Added | ↗▾ |
| 08 | 457669AB5INSMED INCNOTE 0.750% 6/0 View history and evidence | $38.20M | 2.28% | 17.59M principal (USD) | 2.35% → 2.28%-0.07 pp 0 (0.00%) | Unchanged | ↗▾ |
| 09 | VOOVANGUARD S&P 500 ETFS&P 500 ETF SHS View history and evidence | $37.42M | 2.23% | 69.45K shares | 2.12% → 2.23%+0.11 pp +450 (+0.65%) | Added | ↗▾ |
| 10 | 462222AD2IONIS PHARMACEUTICALS INNOTE 4/0 View history and evidence | $33.43M | 1.99% | 34.43M principal (USD) | 2.00% → 1.99%-0.01 pp 0 (0.00%) | Unchanged | ↗▾ |
Options overlay 316
$586.23M 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 | 389.20K | $112.72M | +33.20K (+9.33%) | ▾ |
SPYSS SPDR S&P 500 ETF TRUST-USTR UNIT View history and evidence | Call | 107.10K | $62.77M | +107.10K | ▾ |
AALAMERICAN AIRLINES GROUP INC View history and evidence | Put | 3.16M | $55.15M | -10.30K (-0.32%) | ▾ |
3 / 316 options · preview only
Exited positions 217
| Security | Type | Shares out | Value out | Previous filing | This filing |
|---|---|---|---|---|---|
| 55405YAB6 M/A-COM TECH SOLUTIONS | Non-derivative | -40,977,000 | -$57.86M | SEC filing ↗ | SEC filing ↗ |
| 75524B203 RBC BEARINGS INC | Non-derivative | -294,827 | -$39.29M | SEC filing ↗ | SEC filing ↗ |
| 23804LAB9 DATADOG INC | Non-derivative | -21,487,000 | -$27.86M | SEC filing ↗ | SEC filing ↗ |
3 / 217 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 2024-12-31
Data loaded 2026-09-23 · First reported 2025-02-18
Amendments and versions
{
"amendments_merged": null,
"prior_versions": null,
"cover_table_value": 2265151006
}Research all 955 reported holdings.
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