CSS LLC/IL Q2 2025 Filing
Filed August 14, 2025
Portfolio Value
$2.1T
Holdings
795
Report Date
Q2 2025
Filing Type
13F-HR
All Holdings (795 positions)
| # | Stock | Shares | Value | % Portfolio | Type |
|---|---|---|---|---|---|
| 1 | MIGAMICROSTRATEGY INC | 274,000 | $110.8B | 5.16% | Put |
| 2 | LRN 1.125 09/01/27STRIDE INC | 27,274,000 | $75.9B | 3.54% | |
| 3 | SPYSPDR S&P 500 ETF TR | 122,000 | $75.4B | 3.51% | Put |
| 4 | IONS 0 04/01/26IONIS PHARMACEUTICALS INC | 57,350,000 | $58.0B | 2.71% | |
| 5 | JAZZ 2 06/15/26JAZZ INVESTMENTS I LTD | 52,050,000 | $52.6B | 2.45% | |
| 6 | FOUR 0 12/15/25SHIFT4 PMTS INC | 34,474,000 | $43.5B | 2.03% | |
| 7 | GMEGAMESTOP CORP NEW | 1,440,500 | $35.1B | 1.64% | Put |
| 8 | STX 3.5 06/01/28SEAGATE HDD CAYMAN | 19,458,000 | $35.0B | 1.63% | |
| 9 | BTSG 6.75 02/01/27BRIGHTSPRING HEALTH SVCS INC | 400,466 | $33.0B | 1.54% | |
| 10 | VAC 0 01/15/26MARRIOTT VACATIONS WORLDWIDE | 33,299,000 | $32.3B | 1.51% | |
| 11 | MSTR 2.25 06/15/32MICROSTRATEGY INC | 14,897,000 | $32.0B | 1.49% | |
| 12 | NEE 6.926 09/01/25NEXTERA ENERGY INC | 761,694 | $30.3B | 1.41% | |
| 13 | IMAX 0.5 04/01/26IMAX CORP | 22,650,000 | $25.5B | 1.19% | |
| 14 | SNAP 0.75 08/01/26SNAP INC | 24,016,000 | $23.2B | 1.08% | |
| 15 | UBER 0.875 12/01/28 2028UBER TECHNOLOGIES INC | 16,041,000 | $22.9B | 1.07% | |
| 16 | BAC 7.25 PERP LBANK AMERICA CORP | 18,894 | $22.9B | 1.07% | |
| 17 | RIG 4.625 09/30/29 *TRANSOCEAN INC | 21,322,000 | $22.7B | 1.06% | |
| 18 | BTU 3.25 03/01/28PEABODY ENGR CORP | 21,018,000 | $21.7B | 1.01% | |
| 19 | TVTX 2.5 09/15/25TRAVERE THERAPEUTICS INC | 21,110,000 | $20.9B | 0.97% | |
| 20 | 2L9BLUEPRINT MEDICINES CORP | 157,186 | $20.1B | 0.94% | Put |
| 21 | MSTR 0.875 03/15/31MICROSTRATEGY INC | 10,400,000 | $19.6B | 0.91% | |
| 22 | WWAYFAIR INC | 14,250,000 | $19.2B | 0.90% | |
| 23 | WEC 4.375 06/01/27WEC ENERGY GROUP INC | 16,976,000 | $19.1B | 0.89% | |
| 24 | PTCT 1.5 09/15/26PTC THERAPEUTICS INC | 16,000,000 | $18.5B | 0.86% | |
| 25 | NEENEXTERA ENERGY INC | 259,500 | $18.0B | 0.84% | Put |
| 26 | CNP 4.25 08/15/26CENTERPOINT ENERGY INC | 16,550,000 | $17.9B | 0.84% | |
| 27 | SOFISOFI TECHNOLOGIES INC | 982,113 | $17.9B | 0.83% | Put |
| 28 | LYV 3.125 01/15/29LIVE NATION ENTERTAINMENT IN | 11,584,000 | $17.8B | 0.83% | |
| 29 | F 0 03/15/26FORD MTR CO | 17,700,000 | $17.5B | 0.82% | |
| 30 | —KIMCO RLTY CORP | 280,532 | $17.3B | 0.80% | |
| 31 | ARKKARK ETF TR | 236,200 | $16.6B | 0.77% | Put |
| 32 | TLTISHARES TR | 184,000 | $16.2B | 0.76% | Call |
| 33 | RSPINVESCO EXCHANGE TRADED FD T | 88,932 | $16.2B | 0.75% | |
| 34 | VOOVANGUARD INDEX FDS | 27,990 | $15.9B | 0.74% | |
| 35 | CORZWCORE SCIENTIFIC INC NEW | 1,460,400 | $15.8B | 0.74% | |
| 36 | PI 1.125 05/15/27IMPINJ INC | 12,500,000 | $15.6B | 0.73% | |
| 37 | SNDKSANDISK CORP | 330,000 | $15.0B | 0.70% | Put |
| 38 | AALAMERICAN AIRLS GROUP INC | 1,290,016 | $14.5B | 0.67% | Put |
| 39 | EPR 5.75 PERP CEPR PPTYS | 558,219 | $14.2B | 0.66% | |
| 40 | MNKD 2.5 03/01/26MANNKIND CORP | 13,980,000 | $14.1B | 0.66% | |
| 41 | LITE 0.5 06/15/28LUMENTUM HLDGS INC | 13,600,000 | $14.1B | 0.66% | |
| 42 | RIG 4 12/15/25 *TRANSOCEAN INC | 13,678,000 | $13.7B | 0.64% | |
| 43 | IWPISHARES TR | 95,501 | $13.2B | 0.62% | Put |
| 44 | HALO 1 08/15/28HALOZYME THERAPEUTICS INC | 10,282,000 | $11.7B | 0.55% | |
| 45 | NEENEXTERA ENERGY CAP HLDGS INC | 10,000,000 | $11.3B | 0.53% | |
| 46 | IAU*ISHARES GOLD TR | 176,840 | $11.0B | 0.51% | |
| 47 | 0VVBPARAMOUNT GLOBAL | 841,095 | $10.9B | 0.51% | Put |
| 48 | LVLNSPDR SERIES TRUST | 176,300 | $10.5B | 0.49% | Put |
| 49 | GQ9SPDR GOLD TR | 34,292 | $10.5B | 0.49% | Put |
| 50 | PMT 8.5 06/01/29PENNYMAC CORP | 10,212,000 | $10.3B | 0.48% | |
| 51 | KELKELLANOVA | 125,932 | $10.0B | 0.47% | Put |
| 52 | EVRG 4.5 12/15/27EVERGY INC | 8,500,000 | $9.9B | 0.46% | |
| 53 | RUN 4 03/01/30SUNRUN INC | 13,160,000 | $9.4B | 0.44% | |
| 54 | IBITISHARES BITCOIN TRUST ETF | 138,320 | $8.5B | 0.39% | Put |
| 55 | STEWSRH TOTAL RETURN FUND INC | 461,785 | $8.2B | 0.38% | |
| 56 | 6RJ0ROCKET LAB CORP | 213,627 | $7.6B | 0.36% | Put |
| 57 | AZEKAZEK CO INC | 131,073 | $7.1B | 0.33% | |
| 58 | FOUR 6 05/01/28SHIFT4 PMTS INC | 61,491 | $7.1B | 0.33% | |
| 59 | SPE 2.75 01/27/27 CSPECIAL OPPORTUNITIES FD INC | 285,886 | $7.1B | 0.33% | |
| 60 | TACHTITAN ACQUISITION CORP | 683,268 | $6.9B | 0.32% | |
| 61 | WENNWEN ACQUISITION CORP | 641,531 | $6.8B | 0.32% | |
| 62 | EEMISHARES TR | 138,100 | $6.7B | 0.31% | Put |
| 63 | CSIQ 2.5 10/01/25CANADIAN SOLAR INC | 6,732,000 | $6.6B | 0.31% | |
| 64 | ASND 2.25 04/01/28ASCENDIS PHARMA A/S | 5,250,000 | $6.6B | 0.31% | |
| 65 | COIN 0.25 04/01/30COINBASE GLOBAL INC | 5,000,000 | $6.5B | 0.30% | |
| 66 | COINCOINBASE GLOBAL INC | 17,043 | $6.0B | 0.28% | Put |
| 67 | BKD 2 10/15/26BROOKDALE SR LIVING INC | 5,632,000 | $5.9B | 0.28% | |
| 68 | BBIO 2.25 02/01/29BRIDGEBIO PHARMA INC | 6,238,000 | $5.8B | 0.27% | |
| 69 | GPRE 2.25 03/15/27GREEN PLAINS INC | 6,642,000 | $5.7B | 0.26% | |
| 70 | RDAGREPUBLIC DIGITAL ACQUISITION | 540,782 | $5.5B | 0.26% | |
| 71 | EQXCN 4.75 10/15/28EQUINOX GOLD CORP | 4,460,000 | $5.5B | 0.26% | |
| 72 | RIVNRIVIAN AUTOMOTIVE INC | 398,200 | $5.5B | 0.26% | Put |
| 73 | WDC 3 11/15/28WESTERN DIGITAL CORP | 2,977,000 | $5.3B | 0.25% | |
| 74 | DBMFLITMAN GREGORY FDS TR | 205,764 | $5.3B | 0.25% | |
| 75 | COIN 0.5 06/01/26COINBASE GLOBAL INC | 4,500,000 | $5.2B | 0.24% | |
| 76 | XJEQXABRDN JAPAN EQUITY FUND INC | 684,964 | $5.2B | 0.24% | |
| 77 | INVA 2.125 03/15/28INNOVIVA INC | 4,985,000 | $5.0B | 0.23% | |
| 78 | IGVISHARES TR | 45,700 | $5.0B | 0.23% | Call |
| 79 | CMPOWCOMPOSECURE INC | 798,189 | $5.0B | 0.23% | |
| 80 | MARAMARA HOLDINGS INC | 312,200 | $4.9B | 0.23% | Put |
| 81 | AKAM 1.125 02/15/29AKAMAI TECHNOLOGIES INC | 5,150,000 | $4.9B | 0.23% | |
| 82 | IPCXINFLECTION PT ACQUISITION CO | 454,422 | $4.6B | 0.22% | |
| 83 | HTZ 8 07/15/29HERTZ CORP | 3,525,000 | $4.6B | 0.22% | |
| 84 | MXEMEXICO EQUITY & INCOME FD | 439,243 | $4.6B | 0.21% | |
| 85 | ZSZSCALER INC | 14,500 | $4.6B | 0.21% | Call |
| 86 | NIO 4.625 10/15/30NIO INC | 7,000,000 | $4.4B | 0.21% | |
| 87 | SMCISUPER MICRO COMPUTER INC | 89,300 | $4.4B | 0.20% | Put |
| 88 | RWT 7.75 06/15/27REDWOOD TRUST INC | 4,319,000 | $4.3B | 0.20% | |
| 89 | VTR 3.75 06/01/26VENTAS RLTY LTD PARTNERSHIP | 3,604,000 | $4.3B | 0.20% | |
| 90 | DVNDEVON ENERGY CORP NEW | 131,185 | $4.2B | 0.19% | Call |
| 91 | CEPFCANTOR EQUITY PARTNERS III I | 392,663 | $4.1B | 0.19% | |
| 92 | AXONAXON ENTERPRISE INC | 4,934 | $4.1B | 0.19% | |
| 93 | FE 4 05/01/26FIRSTENERGY CORP | 4,000,000 | $4.0B | 0.19% | |
| 94 | TMDX 1.5 06/01/28TRANSMEDICS GROUP INC | 2,500,000 | $4.0B | 0.19% | |
| 95 | LPBBLAUNCH TWO ACQUISITION CORP. | 378,620 | $3.9B | 0.18% | |
| 96 | EPR 9 PERP EEPR PPTYS | 125,617 | $3.9B | 0.18% | |
| 97 | RAAQREAL ASSET ACQUISITION CORP | 382,974 | $3.9B | 0.18% | |
| 98 | CIFR 1.75 05/15/30CIPHER MINING INC | 3,000,000 | $3.9B | 0.18% | |
| 99 | XLESELECT SECTOR SPDR TR | 45,100 | $3.8B | 0.18% | Put |
| 100 | CMIIUCOLUMBUS CIRCLE CAP CORP. I | 356,720 | $3.8B | 0.18% |
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