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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) |
|---|---|---|---|---|---|
| LUMENTUM HLDGS INC | NOTE 0.500% 6/1 | 55024UAF6 | — | 37,554,000 principal | $245,587,763 |
| HEWLETT PACKARD ENTERPRISE C | 7.625 MAND CONV | 42824C208 | — | 1,276,322 shares | $149,321,378 |
| ECHOSTAR CORP | NOTE 3.875%11/3 | 278768AB2 | — | 43,925,753 principal | $137,438,497 |
| APOLLO GLOBAL MGMT INC | SER A MAND CNV | 03769M304 | — | 1,361,499 shares | $82,814,266 |
| BANK OF AMER CORP | 7.25%CNV PFD L | 060505682 | — | 50,372 shares | $63,279,573 |
| WOLFSPEED INC | NOTE 2.500% 6/1 | 977852AP7 | — | 13,773,940 principal | $54,187,493 |
| SUPER MICRO COMPUTER INC | 7 DEP CM SR A WI | 86800U500 | — | 878,227 shares | $45,262,151 |
| CORE SCIENTIFIC INC NEW | *W EXP 01/23/202 | 21874A114 | — | 2,351,492 shares | $44,208,050 |
| MICROCHIP TECHNOLOGY INC. | DEP SHS REPSTG | 595017302 | — | 558,552 shares | $42,957,787 |
| CLOUDFLARE INC | NOTE 8/1 | 18915MAC1 | — | 26,112,000 principal | $33,548,488 |
| AKAMAI TECHNOLOGIES INC | NOTE 1.125% 2/1 | 00971TAN1 | — | 24,797,000 principal | $29,570,943 |
| GAMESTOP CORP | CL A | 36467W109 | PUT | 1,230,200 shares | $27,162,816 |
| ALBEMARLE CORP | 7.25% DEP SHS A | 012653200 | — | 470,583 shares | $26,081,827 |
| CENTERPOINT ENERGY INC | NOTE 4.250% 8/1 | 15189TBD8 | — | 21,000,000 principal | $25,291,287 |
| EQUINOX GOLD CORP | NOTE 4.750%10/1 | 29446YAC0 | — | 14,895,000 principal | $25,071,175 |
| BOEING CO | DEP CONV PFD A | 097023204 | — | 349,354 shares | $23,634,078 |
| TRANSOCEAN INC | DEB 4.625% 9/3 | 893830BW8 | — | 15,168,000 principal | $23,494,185 |
| EL PASO ENERGY CAP TR I | PFD CV TR SEC 28 | 283678209 | — | 446,461 shares | $22,586,641 |
| INVESCO EXCHANGE TRADED FD T | S&P500 EQL WGT | 46137V357 | — | 104,072 shares | $22,143,400 |
| VANGUARD INDEX FDS | S&P 500 ETF SHS | 922908363 | — | 32,210 shares | $22,122,150 |
| KINDER MORGAN INC DEL | COM | 49456B101 | PUT | 678,900 shares | $21,704,433 |
| IREN LIMITED | NOTE 3.500%12/1 | 46270CAD1 | — | 6,000,000 principal | $21,204,420 |
| DIGITALOCEAN HLDGS INC | NOTE 12/0 | 25402DAB8 | — | 17,243,000 principal | $19,526,835 |
| PTC THERAPEUTICS INC | NOTE 1.500% 9/1 | 69366JAD3 | — | 12,002,000 principal | $18,640,606 |
| SNOWFLAKE INC | NOTE 10/0 | 833445AD1 | — | 9,300,000 principal | $16,473,536 |
| XEROX HOLDINGS CORP | PUT | 98421M956 | PUT | 5,100,000 shares | $15,963,000 |
| WESTERN DIGITAL CORP | COM | 958102105 | — | 24,933 shares | $15,925,206 |
| GAMESTOP CORP | NOTE 6/1 | 36467WAG4 | — | 14,944,000 principal | $15,179,711 |
| ISHARES GOLD TR | ISHARES NEW | 464285204 | — | 200,040 shares | $15,105,021 |
| KIMCO REALTY CORP | DP CV CL N 7.25% | 49446R687 | — | 237,147 shares | $14,983,445 |
| STATE STR SPDR S&P 500 ETF T | TR UNIT | 78462F103 | CALL | 19,000 shares | $14,188,630 |
| ALPHABET INC | DEP SHS RP1/20 B | 02079K602 | — | 266,589 shares | $13,381,515 |
| STATE STR SPDR S&P 500 ETF T | TR UNIT | 78462F103 | — | 17,269 shares | $12,895,971 |
| PENUMBRA INC | COM | 70975L107 | — | 38,740 shares | $12,232,155 |
| IONIS PHARMACEUTICALS INC | COM | 462222100 | — | 152,289 shares | $12,074,995 |
| BRIDGEBIO PHARMA INC | NOTE 1.750% 3/0 | 10806XAJ1 | — | 7,175,000 principal | $12,074,922 |
| CELCUITY INC | NOTE 2.750% 8/0 | 15102KAA8 | — | 5,310,000 principal | $11,943,008 |
| HAEMONETICS CORP MASS | NOTE 2.500% 6/0 | 405024AD2 | — | 11,500,000 principal | $11,638,678 |
| PENUMBRA INC | COM | 70975L107 | PUT | 36,100 shares | $11,398,575 |
| GUARDANT HEALTH INC | DEBT 1.250% 2/1 | 40131MAD1 | — | 4,514,000 principal | $11,344,422 |
| MARA HOLDINGS INC | NOTE 2.125% 9/0 | 565788AD8 | — | 10,000,000 principal | $11,073,150 |
| BROOKDALE SR LIVING INC | NOTE 2.000%10/1 | 112463AC8 | — | 5,632,000 principal | $11,047,602 |
| ALNYLAM PHARMACEUTICALS INC | NOTE 1.000% 9/1 | 02043QAB3 | — | 9,063,000 principal | $10,903,777 |
| TRANSMEDICS GROUP INC | NOTE 1.500% 6/0 | 89377MAB5 | — | 10,000,000 principal | $10,861,980 |
| ON SEMICONDUCTOR CORP | NOTE 0.500% 3/0 | 682189AU9 | — | 8,619,000 principal | $10,364,149 |
| OCEANHAWK ACQUISITION CORP | CL A ORD SHS | G6722R107 | — | 1,038,610 shares | $10,282,239 |
| PPL CAP FDG INC | NOTE 2.875% 3/1 | 69352PAS2 | — | 8,988,000 principal | $10,197,569 |
| FUTURECORP SPACE ACQUISITION | UNIT 99/99/9999 | G37307124 | — | 1,000,000 shares | $10,130,000 |
| ELECTRONIC ARTS INC | COM | 285512109 | PUT | 47,800 shares | $9,800,912 |
| MARA HOLDINGS INC | NOTE 3/0 | 565788AF3 | — | 9,467,000 principal | $9,525,023 |
| GUARDANT HEALTH INC | NOTE 11/1 | 40131MAB5 | — | 7,577,000 principal | $9,400,761 |
| CHART INDS INC | COM | 16115Q308 | — | 44,924 shares | $9,386,421 |
| BEYOND MEAT INC | DEBT 10/1 | 08862EAD1 | — | 14,003,381 principal | $9,334,598 |
| JANUS HENDERSON GROUP PLC | ORD SHS | G4474Y214 | — | 176,575 shares | $9,181,900 |
| SPECIAL OPPORTUNITIES FD INC | 2.75% CNV PFD C | 84741T401 | — | 362,349 shares | $8,985,241 |
| LYFT INC | NOTE 0.625% 3/0 | 55087PAD6 | — | 8,520,000 principal | $8,932,146 |
| SRH TOTAL RETURN FUND INC | COM | 101507101 | — | 461,965 shares | $8,269,173 |
| NEXTERA ENERGY INC | UNIT 02/15/2029 | 65339F655 | — | 172,063 shares | $8,244,812 |
| ISHARES TR | 20 YR TR BD ETF | 464287432 | CALL | 90,000 shares | $7,777,800 |
| INTEGER HLDGS CORP | DBCV 1.875% 3/1 | 45826HAD1 | — | 8,034,000 principal | $7,760,370 |
| CHART INDS INC | COM | 16115Q308 | PUT | 36,300 shares | $7,584,522 |
| SUPER MICRO COMPUTER INC | COM NEW | 86800U302 | PUT | 253,900 shares | $7,446,887 |
| TITAN ACQUISITION CORP | CL A | G8901A103 | — | 708,268 shares | $7,373,070 |
| GREEN PLAINS INC | NOTE 5.250%11/0 | 393222AM6 | — | 5,256,000 principal | $7,118,269 |
| PEABODY ENGR CORP | NOTE 3.250% 3/0 | 704551AD2 | — | 5,224,000 principal | $7,018,151 |
| JAZZ PHARMACEUTICALS PLC | SHS USD | G50871105 | — | 29,041 shares | $6,998,010 |
| EQV VENTURES AC CORP. II | ORD SHS CL A | G3106Q102 | — | 673,659 shares | $6,857,849 |
| WEN ACQUISITION CORP | COM CL A | G9R39C103 | — | 647,631 shares | $6,664,123 |
| REVOLUTION MEDICINES INC | *W EXP 12/17/202 | 76155X118 | — | 78,367 shares | $6,610,382 |
| SELECT SECTOR SPDR TR | ST STR ENERG ETF | 81369Y506 | PUT | 119,700 shares | $6,357,267 |
| ALPHABET INC | DEP SHS RP1/20 A | 02079K404 | — | 125,200 shares | $6,339,352 |
| LITMAN GREGORY FDS TR | IMGP DBI MAN ETF | 53700T827 | — | 205,764 shares | $6,298,436 |
| STRATEGY INC | NOTE 3/0 | 594972AU5 | — | 7,000,000 principal | $6,211,373 |
| TOTAL RETURN SECURITIES FUND | COM | 870875101 | — | 1,040,190 shares | $6,178,729 |
| REVOLUTION MEDICINES INC | COM | 76155X100 | PUT | 29,600 shares | $5,543,488 |
| LIONHEART HOLDINGS | SHS CL A | G5501C109 | — | 507,589 shares | $5,466,734 |
| AZUL S A | SPONSORED ADS | 05501U601 | — | 597,806 shares | $5,374,276 |
| AMERICAN AIRLINES GROUP INC | COM | 02376R102 | PUT | 292,500 shares | $5,285,475 |
| TRG LATIN AMER ACQUIS CORP | CL A ORD SHS | G9037S109 | — | 532,949 shares | $5,270,866 |
| SHIFT4 PMTS INC | CL A | 82452J109 | PUT | 107,800 shares | $5,243,392 |
| BLOOM ENERGY CORP | COM CL A | 093712107 | — | 17,197 shares | $5,205,532 |
| NEXTERA ENERGY INC | UNIT 06/01/2027 | 65339F663 | — | 97,165 shares | $5,189,389 |
| ALIBABA GROUP HLDG LTD | NOTE 0.500% 6/0 | 01609WBG6 | — | 4,362,000 principal | $5,141,084 |
| SILA REALTY TRUST INC | COMMON STOCK | 146280508 | — | 169,320 shares | $5,140,555 |
| ARMADA ACQUISITION CORP III | UNIT 02/13/2031 | G0R38M127 | — | 499,959 shares | $5,039,587 |
| SHIFT4 PMTS INC | 6 SER A CNV PREF | 82452J307 | — | 81,137 shares | $5,037,813 |
| SIMPLIFY EXCHANGE TRADED FUN | MANAGED FUTURES | 82889N699 | — | 193,879 shares | $5,029,222 |
| MACOM TECH SOLUTIONS HLDGS I | COM | 55405Y100 | — | 13,148 shares | $5,001,105 |
| ELECTRONIC ARTS INC | COM | 285512109 | — | 24,281 shares | $4,978,576 |
| ART TECHNOLOGY ACQUISITION C | USD CL A ORD SHS | G0579E103 | — | 487,763 shares | $4,843,487 |
| ISHARES TR | 20 YR TR BD ETF | 464287432 | PUT | 55,000 shares | $4,753,100 |
| MARA HOLDINGS INC | COM | 565788106 | PUT | 341,400 shares | $4,742,046 |
| LAKE SUPERIOR ACQUISITION CO | USD CL A ORD SHS | G5354C107 | — | 465,598 shares | $4,721,164 |
| INFLECTION PT ACQUISITION CO | CL A ORD SHS | G47875102 | — | 454,422 shares | $4,694,179 |
| ECHOSTAR CORP | CL A | 278768106 | PUT | 45,200 shares | $4,587,800 |
| SABA CAPITAL INCOME & OPRNT | SHS NEW | 78518H202 | — | 686,484 shares | $4,510,200 |
| KEYSTONE ACQUISITION CORP | CL A | G52539106 | — | 451,508 shares | $4,451,869 |
| DIGITALBRIDGE GROUP INC | CL A NEW | 25401T603 | — | 273,096 shares | $4,309,455 |
| DIGITALBRIDGE GROUP INC | CL A NEW | 25401T603 | PUT | 272,900 shares | $4,306,362 |
| VIRIDIAN THERAPEUTICS INC | NOTE 1.750% 5/1 | 92790CAB0 | — | 4,000,000 principal | $4,296,228 |