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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) |
|---|---|---|---|---|---|
| BITDEER TECHNOLOGIES GROUP | CL A ORD SHS | G11448100 | PUT | 37,600 shares | $596,712 |
| ARISTA NETWORKS INC | COM SHS | 040413205 | CALL | 3,500 shares | $594,580 |
| AXCELIS TECHNOLOGIES INC | COM NEW | 054540208 | — | 3,131 shares | $593,168 |
| AKAMAI TECHNOLOGIES INC | COM | 00971T101 | CALL | 5,000 shares | $591,050 |
| CISCO SYS INC | COM | 17275R102 | PUT | 5,000 shares | $587,300 |
| BLEICHROEDER ACQUISITI CORP | USD CL A ORD SHS | G1170E104 | — | 56,899 shares | $587,198 |
| CORE SCIENTIFIC INC NEW | COM | 21874A106 | — | 22,843 shares | $584,552 |
| MICRON TECHNOLOGY INC | COM | 595112103 | — | 500 shares | $577,145 |
| SMITHFIELD FOODS INC | COM | 832248207 | — | 23,650 shares | $573,749 |
| MARKETAXESS HLDGS INC | COM | 57060D108 | — | 5,030 shares | $570,855 |
| EXLSERVICE HLDGS INC | COM | 302081104 | — | 22,050 shares | $570,213 |
| FIRSTENERGY CORP | COM | 337932107 | — | 11,963 shares | $568,721 |
| VALERO ENERGY CORP | COM | 91913Y100 | — | 2,180 shares | $567,759 |
| CNO FINL GROUP INC | COM | 12621E103 | — | 11,128 shares | $567,305 |
| CHECK POINT SOFTWARE TECH LT | ORD | M22465104 | — | 4,280 shares | $562,520 |
| AMERICAN ELEC PWR CO INC | COM | 025537101 | — | 4,110 shares | $562,289 |
| US BANCORP | COM NEW | 902973304 | — | 9,300 shares | $561,720 |
| NEWMONT CORP | COM | 651639106 | CALL | 6,000 shares | $560,400 |
| FLUOR CORP | COM | 343412102 | — | 10,634 shares | $557,116 |
| STELLAR V CAP CORP | SHS CL A | G8475V103 | — | 52,797 shares | $557,008 |
| TERAWULF INC | COM | 88080T104 | PUT | 22,500 shares | $555,750 |
| GABELLI GLOBAL SMALL & MID C | COM | 36249W104 | — | 34,071 shares | $554,676 |
| CLEANSPARK INC | COM NEW | 18452B209 | PUT | 37,900 shares | $551,445 |
| MORNINGSTAR INC | COM | 617700109 | — | 3,520 shares | $549,190 |
| CROSS CTRY HEALTHCARE INC | COM | 227483104 | PUT | 41,400 shares | $546,894 |
| HENNESSY CAP INVT CORP VII | ORD SHS CL A | G4405D107 | — | 51,900 shares | $542,355 |
| VIRTUS TOTAL RETURN FD INC | COM | 92835W107 | — | 79,387 shares | $542,213 |
| HF SINCLAIR CORP | COM | 403949100 | — | 7,770 shares | $541,181 |
| CROSS CTRY HEALTHCARE INC | COM | 227483104 | — | 40,966 shares | $541,161 |
| ESPERION THERAPEUTICS INC NE | COM | 29664W105 | — | 171,250 shares | $541,150 |
| KB HOME | COM | 48666K109 | — | 8,590 shares | $537,648 |
| GLOBAL X FDS | MSCI GREECE ETF | 37954Y319 | — | 7,115 shares | $537,182 |
| BROADCOM INC | COM | 11135F101 | — | 1,421 shares | $536,783 |
| PLANET LABS PBC | COM CL A | 72703X106 | — | 16,118 shares | $533,989 |
| DEUTSCHE BK AG | NAMEN AKT | D18190898 | — | 15,740 shares | $531,382 |
| TRUBRIDGE INC | COM | 205306103 | — | 20,034 shares | $525,091 |
| VANECK ETF TRUST | SEMICONDUCTR ETF | 92189F676 | PUT | 800 shares | $524,712 |
| ARROWMARK FINANCIAL CORP | COM | 861780104 | — | 26,821 shares | $524,351 |
| ACCENTURE PLC IRELAND | SHS CLASS A | G1151C101 | — | 4,200 shares | $522,648 |
| ZIM INTEGRATED SHIPPING SERV | SHS | M9T951109 | — | 20,100 shares | $522,600 |
| TARGET CORP | COM | 87612E106 | CALL | 4,000 shares | $522,440 |
| SCIENCE APPLICATIONS INTL CO | COM | 808625107 | — | 4,680 shares | $516,719 |
| DEVON ENERGY CORP NEW | COM | 25179M103 | CALL | 12,500 shares | $516,500 |
| FEDEX CORP | COM | 31428X106 | — | 1,649 shares | $516,352 |
| TWILIO INC | CL A | 90138F102 | PUT | 2,500 shares | $515,825 |
| GE HEALTHCARE TECHNOLOGIES I | COMMON STOCK | 36266G107 | — | 8,050 shares | $515,281 |
| EPR PPTYS | COM SH BEN INT | 26884U109 | — | 8,867 shares | $514,375 |
| CENTENE CORP DEL | COM | 15135B101 | CALL | 8,000 shares | $513,520 |
| RENAISSANCERE HLDGS LTD | COM | G7496G103 | — | 1,620 shares | $513,378 |
| RIVERNORTH OPPORTUNITIES FD | COM | 76881Y109 | — | 43,915 shares | $512,049 |
| HALOZYME THERAPEUTICS INC | COM | 40637H109 | — | 6,520 shares | $510,321 |
| INVITATION HOMES INC | COM | 46187W107 | — | 16,760 shares | $506,319 |
| CAPITAL ONE FINL CORP | COM | 14040H105 | CALL | 2,500 shares | $501,550 |
| VINE HILL CAP INVTS CORP II | CL A | G9709D109 | — | 50,000 shares | $499,000 |
| MATADOR RES CO | COM | 576485205 | CALL | 10,000 shares | $497,800 |
| FORD MTR CO | COM | 345370860 | CALL | 35,600 shares | $494,840 |
| APPLIED OPTOELECTRONICS INC | COM | 03823U102 | — | 3,328 shares | $493,076 |
| TELEFLEX INCORPORATED | COM | 879369106 | — | 3,876 shares | $491,321 |
| BROADCOM INC | COM | 11135F101 | PUT | 1,300 shares | $491,075 |
| CAMBRIA ETF TR | EMRG SHAREHLDR | 132061706 | — | 10,728 shares | $487,158 |
| PRESIDIO PRODTN CO | CL A COM | 74102N101 | PUT | 40,000 shares | $486,400 |
| GLADSTONE CAP CORP | NOTE 5.875%10/0 | 376535AG5 | — | 500,000 principal | $483,140 |
| TRAVERE THERAPEUTICS INC | COM | 89422G107 | — | 8,470 shares | $481,181 |
| PENNYMAC FINL SVCS INC NEW | COM | 70932M107 | — | 5,500 shares | $479,050 |
| HUNTINGTON INGALLS INDS INC | COM | 446413106 | — | 1,700 shares | $475,813 |
| JENA ACQUISITION CORP II | USD CL A ORD SHS | G5093B105 | — | 45,896 shares | $475,483 |
| EXELIXIS INC | COM | 30161Q104 | — | 8,709 shares | $473,857 |
| RACKSPACE TECHNOLOGY INC | COM | 750102105 | PUT | 72,400 shares | $472,772 |
| DOUBLEVERIFY HLDGS INC | COM | 25862V105 | — | 43,497 shares | $471,507 |
| UNIFIRST CORP MASS | COM | 904708104 | — | 1,767 shares | $467,301 |
| CHEWY INC | CL A | 16679L109 | — | 23,688 shares | $465,469 |
| JANUS HENDERSON GROUP PLC | ORD SHS | G4474Y214 | PUT | 8,900 shares | $462,800 |
| ENCOMPASS HEALTH CORP | COM | 29261A100 | — | 4,570 shares | $461,936 |
| BALL CORP | COM | 058498106 | — | 7,400 shares | $461,760 |
| BROADRIDGE FINL SOLUTIONS IN | COM | 11133T103 | — | 3,350 shares | $458,782 |
| SPDR SERIES TRUST | ST STR SP INS | 78464A789 | CALL | 7,500 shares | $457,425 |
| SHOPIFY INC | CL A SUB VTG SHS | 82509L107 | PUT | 4,000 shares | $456,720 |
| COPART INC | COM | 217204106 | — | 16,190 shares | $456,396 |
| BLOOM ENERGY CORP | COM CL A | 093712107 | PUT | 1,500 shares | $454,050 |
| RYDER SYS INC | COM | 783549108 | — | 1,710 shares | $451,047 |
| AES CORP | COM | 00130H105 | CALL | 30,600 shares | $448,596 |
| BRIDGEBIO PHARMA INC | COM | 10806X102 | PUT | 6,000 shares | $446,880 |
| AXALTA COATING SYS LTD | COM | G0750C108 | — | 13,001 shares | $444,894 |
| BLACKROCK HEALTH SCIENCES TE | COM SHS | 09260E105 | — | 28,796 shares | $442,019 |
| EASTMAN CHEM CO | COM | 277432100 | — | 6,550 shares | $438,719 |
| SOLAREDGE TECHNOLOGIES INC | COM | 83417M104 | PUT | 7,500 shares | $438,300 |
| INCYTE CORP | COM | 45337C102 | — | 3,856 shares | $437,116 |
| COGNEX CORP | COM | 192422103 | PUT | 6,000 shares | $434,520 |
| FEDERAL RLTY INVT TR NEW | SH BEN INT NEW | 313745101 | — | 3,500 shares | $432,040 |
| LAMAR ADVERTISING CO | CL A | 512816109 | — | 2,769 shares | $431,909 |
| CDW CORP | COM | 12514G108 | — | 3,060 shares | $430,358 |
| ILLINOIS TOOL WKS INC | COM | 452308109 | — | 1,590 shares | $430,047 |
| JETBLUE AIRWAYS CORP | COM | 477143101 | PUT | 74,900 shares | $429,177 |
| S&P GLOBAL INC | COM | 78409V104 | — | 1,050 shares | $427,623 |
| AUTOLIV INC | COM | 052800109 | — | 3,680 shares | $427,506 |
| SANOFI SA | SPONSORED ADR | 80105N105 | CALL | 10,000 shares | $426,600 |
| BRITISH AMERN TOB PLC | SPONSORED ADR | 110448107 | — | 6,900 shares | $426,144 |
| HUBSPOT INC | COM | 443573100 | — | 2,300 shares | $419,773 |
| FIRST SEACOAST BANCORP INC | COM | 33631F104 | — | 24,890 shares | $419,645 |
| CNA FINL CORP | COM | 126117100 | — | 8,630 shares | $419,504 |