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CSS LLC/IL
Period ended Jun 30, 2026 · Latest filing Aug 14, 2026
These quarterly holdings are delayed and may not include all assets or short positions.
Values are from the reporting date, not current prices or purchase costs.
The same security may appear in multiple rows.
Source: SEC
Reported portfolio value
Quarter-end reported holdings; not current value or investment performance.
View reported values
- Jun 30, 2026: $2,568,508,626
More quarters will appear as history becomes available.
Top holdings
Top 10 at Jun 30, 2026. Matching entries are combined; security classes and options remain separate. Shares exclude principal amounts; option shares reflect the reported underlying amount.
View top holdings values
- LUMENTUM HLDGS INC · NOTE 0.500% 6/1 · 55024UAF6 · principal: $245,587,763
- HEWLETT PACKARD ENTERPRISE C · 7.625 MAND CONV · 42824C208 · shares: $149,321,378
- ECHOSTAR CORP · NOTE 3.875%11/3 · 278768AB2 · principal: $137,438,497
- APOLLO GLOBAL MGMT INC · SER A MAND CNV · 03769M304 · shares: $82,814,266
- BANK OF AMER CORP · 7.25%CNV PFD L · 060505682 · shares: $63,279,573
- WOLFSPEED INC · NOTE 2.500% 6/1 · 977852AP7 · principal: $54,187,493
- SUPER MICRO COMPUTER INC · 7 DEP CM SR A WI · 86800U500 · shares: $45,262,151
- CORE SCIENTIFIC INC NEW · *W EXP 01/23/202 · 21874A114 · shares: $44,208,050
- MICROCHIP TECHNOLOGY INC. · DEP SHS REPSTG · 595017302 · shares: $42,957,787
- CLOUDFLARE INC · NOTE 8/1 · 18915MAC1 · principal: $33,548,488
Reported holdings
1,001 reported entries| Issuer | Class | CUSIP | Type | Shares / principal | Reported value (USD) |
|---|---|---|---|---|---|
| IDEA ACQUISITION CORP | UNIT 01/06/2031 | G4727U126 | — | 16,044 shares | $160,762 |
| XEROX HOLDINGS CORP | *W EXP 02/11/202 | 98421M114 | PUT | 51,000 shares | $159,629 |
| AMERICAN DRIVE ACQUISITION C | USD CL A ORD SHS | G0R91M105 | — | 15,899 shares | $159,308 |
| ABRDN ASIA PACIFIC INCOME FU | COM NEW | 003009867 | — | 10,614 shares | $156,132 |
| GENERAL MTRS CO | COM | 37045V100 | CALL | 2,000 shares | $154,160 |
| FLUENCE ENERGY INC | COM CL A | 34379V103 | PUT | 7,700 shares | $153,076 |
| DUFF & PHELPS UTLITY AND INF | COM | 26433C105 | — | 10,262 shares | $152,288 |
| JANUS HENDERSON GROUP PLC | ORD SHS | G4474Y214 | CALL | 2,900 shares | $150,800 |
| OPEN LENDING CORP | COM | 68373J104 | — | 48,000 shares | $149,280 |
| COINSHARES PLC | *W EXP 03/31/203 | G670AQ112 | — | 198,705 shares | $148,035 |
| VISHAY INTERTECHNOLOGY INC | NOTE 2.250% 9/1 | 928298AR9 | — | 74,000 principal | $146,502 |
| COINBASE GLOBAL INC | COM CL A | 19260Q107 | CALL | 1,000 shares | $146,190 |
| LYFT INC | CL A COM | 55087P104 | CALL | 10,000 shares | $146,100 |
| AURORA INNOVATION INC | CLASS A COM | 051774107 | CALL | 21,300 shares | $145,266 |
| BORR DRILLING LTD | SHS | G1466R173 | PUT | 35,000 shares | $144,550 |
| CUMMINS INC | COM | 231021106 | CALL | 200 shares | $142,642 |
| GOLD RESOURCE CORP | COM | 38068T105 | — | 109,188 shares | $137,577 |
| NEWMONT CORP | COM | 651639106 | — | 1,450 shares | $135,430 |
| VANECK ETF TRUST | SEMICONDUCTR ETF | 92189F676 | CALL | 200 shares | $131,178 |
| ADT INC DEL | COM | 00090Q103 | CALL | 20,000 shares | $130,000 |
| BLUEROCK ACQUISITION CORP | *W EXP 12/12/203 | G1352R113 | — | 288,064 shares | $129,629 |
| PURECYCLE TECHNOLOGIES INC | COM | 74623V103 | PUT | 15,800 shares | $128,138 |
| ONEMAIN HLDGS INC | COM | 68268W103 | — | 2,067 shares | $126,025 |
| TEAMSHARES INC | *W EXP 06/18/203 | 87821B117 | — | 83,686 shares | $123,855 |
| CLOUGH GLOBAL DIVID & INCOME | COM | 18913Y103 | — | 18,485 shares | $122,740 |
| EAGLE NUCLEAR ENERGY CORP | *W EXP 02/25/203 | 269710117 | — | 83,287 shares | $120,766 |
| ENERGY TRANSITION SPL OPPORT | ORD CL A | G23017109 | — | 12,007 shares | $118,869 |
| IRON HORSE ACQUISIT II CORP | RIGHT 07/11/2030 | 46283H129 | — | 73,810 shares | $118,686 |
| AIRJOULE TECHNOLOGIES CORP | *W EXP 03/15/202 | 612160119 | — | 90,998 shares | $118,297 |
| TRANSOCEAN LTD | REGISTERED SHS | H8817H100 | PUT | 24,000 shares | $117,360 |
| EMERALD HOLDING INC | COM | 29103W104 | — | 23,033 shares | $116,086 |
| MICRON TECHNOLOGY INC | COM | 595112103 | CALL | 100 shares | $115,429 |
| CHORD ENERGY CORPORATION | COM NEW | 674215207 | CALL | 1,000 shares | $114,300 |
| INTERNATIONAL MONEY EXPRESS | COM | 46005L101 | CALL | 7,800 shares | $112,710 |
| VARONIS SYS INC | COM | 922280102 | — | 2,661 shares | $111,656 |
| YEXT INC | COM | 98585N106 | — | 23,893 shares | $111,581 |
| ANDRETTI ACQUISITION CORP II | *W EXP 06/01/203 | G26745128 | — | 529,585 shares | $111,212 |
| FIFTH ERA ACQUISITION CORP I | RIGHT 02/21/2030 | G3415K135 | — | 33,473 shares | $110,495 |
| BLUEROCK HOMES TRUST INC | COM CL A | 09631H100 | — | 12,209 shares | $109,881 |
| NEWBURY STR II ACQUISITION C | *W EXP 06/01/203 | G6439S117 | — | 443,780 shares | $109,791 |
| COINBASE GLOBAL INC | COM CL A | 19260Q107 | — | 747 shares | $109,204 |
| MCCORMICK & CO INC | COM NON VTG | 579780206 | — | 2,100 shares | $105,882 |
| KEYSTONE ACQUISITION CORP | *W EXP 05/28/203 | G52539122 | — | 238,875 shares | $105,081 |
| STRATEGY INC | CL A NEW | 594972408 | CALL | 1,200 shares | $104,316 |
| INSULET CORP | COM | 45784P101 | — | 680 shares | $103,530 |
| ARISTA NETWORKS INC | COM SHS | 040413205 | — | 600 shares | $101,928 |
| SKY HARBOUR GROUP CORPORATIO | *W EXP 01/25/202 | 83085C115 | — | 217,838 shares | $100,205 |
| RITHM ACQUISITION CORP | *W EXP 99/99/999 | G75751118 | — | 144,866 shares | $98,509 |
| DIANA SHIPPING INC | *W EXP 12/14/202 | Y2066G138 | — | 1,102,812 shares | $98,379 |
| ISHARES BITCOIN TRUST ETF | SHS BEN INT | 46438F101 | — | 2,922 shares | $97,274 |
| BRIGHTHOUSE FINL INC | COM | 10922N103 | PUT | 1,500 shares | $94,950 |
| AXCELIS TECHNOLOGIES INC | COM NEW | 054540208 | PUT | 500 shares | $94,725 |
| STELLAR V CAP CORP | *W EXP 10/15/202 | G8475V111 | — | 335,762 shares | $94,014 |
| GREENLAND ENERGY CO | *W EXP 04/21/203 | 70580B114 | — | 110,548 shares | $93,966 |
| DELTA AIR LINES INC | COM NEW | 247361702 | CALL | 1,000 shares | $93,660 |
| TRG LATIN AMER ACQUIS CORP | RIGHT 02/20/2031 | G9037S117 | — | 53,325 shares | $93,639 |
| LEIDOS HOLDINGS INC | COM | 525327102 | CALL | 900 shares | $92,673 |
| CBDMD INC | COM SHS | 12482W408 | — | 137,621 shares | $92,619 |
| OPENDOOR TECHNOLOGIES INC | COM | 683712103 | PUT | 20,000 shares | $92,400 |
| SYNCHRONY FINANCIAL | COM | 87165B103 | CALL | 1,200 shares | $91,260 |
| GYRODYNE LLC | COM | 403829104 | — | 14,803 shares | $90,668 |
| KODIAK AI INC. | *W EXP 09/25/203 | 500081112 | — | 119,286 shares | $88,283 |
| OLD DOMINION FREIGHT LINE IN | COM | 679580100 | — | 401 shares | $86,857 |
| QXO INC | COM NEW | 82846H405 | CALL | 5,000 shares | $86,400 |
| CARNIVAL CORP LTD | COMMON SHARES | G2004J103 | — | 3,000 shares | $85,710 |
| LIGHTWAVE ACQUISITION CORP | *W EXP 06/06/203 | G5490M126 | — | 273,373 shares | $84,718 |
| CLEAR CHANNEL OUTDOOR HLDGS | COM | 18453H106 | — | 35,000 shares | $84,700 |
| GP-ACT III ACQUISITION CORP | *W EXP 05/13/202 | G4035N129 | — | 441,672 shares | $83,918 |
| M3-BRIGADE ACQUISITION VI CO | *W EXP 08/18/203 | G63221116 | — | 207,248 shares | $82,899 |
| FACTORIAL ENERGY INC | *W EXP 06/04/203 | 30347G111 | — | 60,299 shares | $82,006 |
| AFFIRM HLDGS INC | COM CL A | 00827B106 | CALL | 1,000 shares | $81,550 |
| FIGX CAP ACQUISITION CORP. | *W EXP 06/17/203 | G3473K118 | — | 289,368 shares | $81,023 |
| SELECT SECTOR SPDR TR | ST STR ENERG ETF | 81369Y506 | — | 1,486 shares | $78,921 |
| BRIDGEBIO PHARMA INC | NOTE 2.250% 2/0 | 10806XAD4 | — | 71,000 principal | $78,901 |
| TRONOX HOLDINGS PLC | SHS | G9087Q102 | PUT | 12,400 shares | $78,120 |
| FUNDRISE INNOVATION FD LLC | COM SHS | 360852107 | CALL | 900 shares | $77,787 |
| LAUNCH ONE ACQUISITION CORP | *W EXP 06/01/203 | G5S86M126 | — | 405,424 shares | $77,071 |
| SUNRUN INC | COM | 86771W105 | — | 5,478 shares | $73,296 |
| OYSTER ENTERPRISES II ACQUIS | RIGHT 05/22/2030 | G6861F138 | — | 66,340 shares | $73,040 |
| BLEICHROEDER ACQUISITI CORP | *W EXP 12/23/203 | G1170E112 | — | 33,333 shares | $72,666 |
| OPTIMUM COMMUNICATIONS INC | CL A | 02156K103 | — | 50,000 shares | $72,500 |
| ITHAX ACQUISITION CORP III | *W EXP 11/17/203 | G4977S110 | — | 296,855 shares | $71,245 |
| LAKE SUPERIOR ACQUISITION CO | RIGHT 09/19/2030 | G5354C115 | — | 66,545 shares | $69,872 |
| IDEA ACQUISITION CORP | *W EXP 01/06/203 | G4727U118 | — | 204,944 shares | $69,681 |
| ORGANON & CO | COMMON STOCK | 68622V106 | CALL | 5,000 shares | $67,700 |
| OLAPLEX HLDGS INC | COM | 679369108 | — | 33,000 shares | $67,650 |
| PRIORITY TECHNOLOGY HLDGS IN | COM | 74275G107 | — | 10,000 shares | $66,700 |
| WARNER BROS DISCOVERY INC | COM SER A | 934423104 | PUT | 2,500 shares | $66,650 |
| PIONEER ACQUISITION I CORP | *W EXP 06/16/203 | G7117W115 | — | 305,019 shares | $65,793 |
| GESHER ACQUISITION CORP. II | *W EXP 10/31/203 | G3852D115 | — | 226,262 shares | $65,050 |
| GRAF GLOBAL CORP | *W EXP 05/31/203 | G4036C122 | — | 170,569 shares | $64,816 |
| SOUNDHOUND AI INC | CLASS A COM | 836100107 | CALL | 10,000 shares | $64,700 |
| DRUGS MADE IN AMER ACQ II CO | RIGHT 09/16/2030 | G2851K112 | — | 80,600 shares | $64,480 |
| BERTO ACQUISITION CORP | *W EXP 05/01/203 | G1051H119 | — | 88,938 shares | $63,351 |
| ESPERION THERAPEUTICS INC NE | COM | 29664W105 | PUT | 20,000 shares | $63,200 |
| XOMA ROYALTY CORPORATION | COM NEW | 98419J206 | CALL | 1,400 shares | $59,500 |
| BTC DEV CORP | *W EXP 09/11/203 | G0701G117 | — | 166,866 shares | $58,787 |
| GABELLI EQUITY TR INC | COM | 362397101 | — | 10,232 shares | $57,913 |
| GCT SEMICONDUCTOR HLDG INC | *W EXP 03/01/202 | 36170N115 | — | 115,275 shares | $56,485 |
| CREDIT SUISSE HIGH YIELD CRE | SH BEN INT | 22544F103 | — | 31,276 shares | $55,671 |