GROUP ONE TRADING LLC Q1 2021 Filing
Filed May 12, 2021
Portfolio Value
$67.5B
Holdings
7,548
Report Date
Q1 2021
Filing Type
13F-HR
All Holdings (7,548 positions)
| # | Stock | Shares | Value | % Portfolio | Type |
|---|---|---|---|---|---|
| 401 | —SUPERNOVA PARTNERS ACQUISITI | 70,800 | $716.0M | 1.06% | Call |
| 402 | WTIW & T OFFSHORE INC | 199,400 | $716.0M | 1.06% | Call |
| 403 | CROXCROCS INC | 8,900 | $716.0M | 1.06% | Call |
| 404 | CLWCLEARWATER PAPER CORP | 19,000 | $715.0M | 1.06% | Put |
| 405 | FITBFIFTH THIRD BANCORP | 19,052 | $714.0M | 1.06% | |
| 406 | CNNECANNAE HLDGS INC | 1,800 | $713.0M | 1.06% | Call |
| 407 | BTAIBIOXCEL THERAPEUTICS INC | 16,500 | $712.0M | 1.05% | Put |
| 408 | MTZMASTEC INC | 7,600 | $712.0M | 1.05% | Put |
| 409 | HRBBLOCK H & R INC | 32,581 | $710.0M | 1.05% | |
| 410 | —OREILLY AUTOMOTIVE INC | 1,400 | $710.0M | 1.05% | Put |
| 411 | WOOFPETCO HEALTH & WELLNESS CO I | 32,000 | $709.0M | 1.05% | Put |
| 412 | —SUPPORT COM INC | 154,300 | $708.0M | 1.05% | Call |
| 413 | IAUUSDISHARES GOLD TR | 43,363 | $705.0M | 1.04% | |
| 414 | BSBRBANCO SANTANDER BRASIL S A | 10,000 | $705.0M | 1.04% | Put |
| 415 | MDXGMIMEDX GROUP INC | 68,300 | $703.0M | 1.04% | Call |
| 416 | FXAINVESCO CURRENCYSHARES CDN D | 9,000 | $703.0M | 1.04% | Call |
| 417 | CRNTCERAGON NETWORKS LTD | 186,200 | $702.0M | 1.04% | Put |
| 418 | —GLOBAL CORD BLOOD CORPORATIO | 15,500 | $702.0M | 1.04% | Call |
| 419 | —NOVAGOLD RES INC | 80,000 | $701.0M | 1.04% | Put |
| 420 | PHGKONINKLIJKE PHILIPS N V | 12,300 | $701.0M | 1.04% | Call |
| 421 | MAAMID-AMER APT CMNTYS INC | 4,859 | $701.0M | 1.04% | |
| 422 | CENXCENTURY ALUM CO | 39,609 | $699.0M | 1.04% | |
| 423 | —TRANSLATE BIO INC | 42,393 | $699.0M | 1.04% | |
| 424 | BENFRANKLIN RESOURCES INC | 23,591 | $698.0M | 1.03% | |
| 425 | ALLOALLOGENE THERAPEUTICS INC | 19,743 | $697.0M | 1.03% | |
| 426 | SATSECHOSTAR CORP | 29,055 | $697.0M | 1.03% | |
| 427 | —JAMF HLDG CORP | 19,700 | $696.0M | 1.03% | Call |
| 428 | NNNNATIONAL RETAIL PROPERTIES I | 15,800 | $696.0M | 1.03% | Call |
| 429 | FLIRFLIR SYS INC | 12,330 | $696.0M | 1.03% | |
| 430 | —DIEBOLD INC | 49,200 | $695.0M | 1.03% | Put |
| 431 | —DILLARDS INC | 7,200 | $695.0M | 1.03% | Put |
| 432 | —BROOKDALE SR LIVING INC | 114,800 | $695.0M | 1.03% | Put |
| 433 | —USA TRUCK INC | 36,300 | $694.0M | 1.03% | Put |
| 434 | —ENTERCOM COMMUNICATIONS CORP | 132,100 | $694.0M | 1.03% | Call |
| 435 | —SYROS PHARMACEUTICALS INC | 92,600 | $693.0M | 1.03% | Put |
| 436 | MXLMAXLINEAR INC | 20,332 | $693.0M | 1.03% | |
| 437 | ALTALTIMMUNE INC | 49,030 | $693.0M | 1.03% | |
| 438 | OCULOCULAR THERAPEUTIX INC | 42,200 | $693.0M | 1.03% | Call |
| 439 | —REVLON INC | 56,100 | $692.0M | 1.02% | Call |
| 440 | —NATIONAL INSTRS CORP | 1,600 | $691.0M | 1.02% | Call |
| 441 | SRESEMPRA ENERGY | 5,200 | $689.0M | 1.02% | Call |
| 442 | —ORBCOMM INC | 90,146 | $688.0M | 1.02% | |
| 443 | —PLURALSIGHT INC | 30,745 | $687.0M | 1.02% | |
| 444 | —GLOBAL BLUE GROUP HOLDING AG | 56,300 | $686.0M | 1.02% | Call |
| 445 | QNCXCORTEXYME INC | 19,000 | $685.0M | 1.01% | Call |
| 446 | NEUNEWMARKET CORP | 1,800 | $684.0M | 1.01% | Call |
| 447 | MCSMARCUS CORP DEL | 34,100 | $682.0M | 1.01% | Put |
| 448 | NXTCNEXTCURE INC | 68,000 | $681.0M | 1.01% | Call |
| 449 | LXRXLEXICON PHARMACEUTICALS INC | 115,900 | $680.0M | 1.01% | Call |
| 450 | INGING GROEP N.V. | 55,600 | $680.0M | 1.01% | Call |
| 451 | PRPLPURPLE INNOVATION INC | 21,484 | $680.0M | 1.01% | |
| 452 | SKYSKYLINE CHAMPION CORPORATION | 15,000 | $679.0M | 1.01% | Put |
| 453 | YEXTYEXT INC | 46,900 | $679.0M | 1.01% | Put |
| 454 | —AURORA MOBILE LTD | 160,500 | $679.0M | 1.01% | Put |
| 455 | CNCCENTENE CORP DEL | 10,632 | $679.0M | 1.01% | |
| 456 | NKTRNEKTAR THERAPEUTICS | 33,900 | $678.0M | 1.00% | Put |
| 457 | UNMUNUM GROUP | 24,350 | $678.0M | 1.00% | |
| 458 | UTIUNIVERSAL TECHNICAL INST INC | 116,100 | $678.0M | 1.00% | Put |
| 459 | KTOSKRATOS DEFENSE & SEC SOLUTIO | 24,822 | $677.0M | 1.00% | |
| 460 | USPHU S PHYSICAL THERAPY INC | 6,500 | $677.0M | 1.00% | Put |
| 461 | —PERSPECTA INC | 23,300 | $677.0M | 1.00% | Call |
| 462 | —GREENSKY INC | 109,300 | $677.0M | 1.00% | Call |
| 463 | KBHKB HOME | 14,523 | $676.0M | 1.00% | |
| 464 | CNMDCONMED CORP | 5,175 | $676.0M | 1.00% | |
| 465 | —FLOTEK INDS INC DEL | 402,300 | $676.0M | 1.00% | Call |
| 466 | —LUMBER LIQUIDATORS HLDGS INC | 26,900 | $676.0M | 1.00% | Put |
| 467 | —MSC INDL DIRECT INC | 7,500 | $676.0M | 1.00% | Put |
| 468 | —SOUTHWESTERN ENERGY CO | 145,200 | $675.0M | 1.00% | Put |
| 469 | —MACQUARIE INFRASTRUCTURE COR | 21,200 | $674.0M | 1.00% | Call |
| 470 | BZHBEAZER HOMES USA INC | 32,200 | $674.0M | 1.00% | Call |
| 471 | KODKODIAK SCIENCES INC | 5,932 | $673.0M | 1.00% | |
| 472 | TMHCTAYLOR MORRISON HOME CORP | 21,800 | $672.0M | 1.00% | Call |
| 473 | —VIRNETX HLDG CORP | 120,600 | $672.0M | 1.00% | Call |
| 474 | —CHEMOCENTRYX INC | 13,100 | $671.0M | 0.99% | Call |
| 475 | ANAUTONATION INC | 7,200 | $671.0M | 0.99% | Put |
| 476 | OVIDOVID THERAPEUTICS INC | 166,356 | $669.0M | 0.99% | |
| 477 | —OWENS & MINOR INC NEW | 17,800 | $669.0M | 0.99% | Put |
| 478 | —CHILDRENS PL INC NEW | 9,600 | $669.0M | 0.99% | Call |
| 479 | —MAIN STR CAP CORP | 17,100 | $669.0M | 0.99% | Put |
| 480 | —BROOKFIELD ASSET MGMT INC | 15,000 | $668.0M | 0.99% | Put |
| 481 | —CITIZENS FINANCIAL GROUP INC | 15,100 | $667.0M | 0.99% | Put |
| 482 | —EROS STX GLOBAL CORPORATION | 368,600 | $667.0M | 0.99% | Call |
| 483 | —ANTARES PHARMA INC | 162,300 | $667.0M | 0.99% | Call |
| 484 | —STABLE RD ACQUISITION CORP | 50,422 | $667.0M | 0.99% | |
| 485 | CEVACEVA INC | 11,851 | $665.0M | 0.98% | |
| 486 | EHEHANG HLDGS LTD | 17,900 | $663.0M | 0.98% | Call |
| 487 | —FOMENTO ECONOMICO MEXICANO S | 8,800 | $663.0M | 0.98% | Call |
| 488 | DHTDHT HOLDINGS INC | 111,700 | $662.0M | 0.98% | Call |
| 489 | —CNH INDL N V | 42,300 | $662.0M | 0.98% | Call |
| 490 | —INSPIRE MED SYS INC | 3,200 | $662.0M | 0.98% | Put |
| 491 | IMAIMAX CORP | 32,899 | $661.0M | 0.98% | |
| 492 | —BRAINSTORM CELL THERAPEUTICS | 172,300 | $660.0M | 0.98% | Put |
| 493 | QLYSQUALYS INC | 6,300 | $660.0M | 0.98% | Put |
| 494 | —BROOKFIELD PROPERTY PARTRS L | 37,017 | $659.0M | 0.98% | |
| 495 | ACTGACACIA RESH CORP | 98,960 | $658.0M | 0.97% | |
| 496 | —OLD REP INTL CORP | 30,100 | $657.0M | 0.97% | Call |
| 497 | CODXGBPCO-DIAGNOSTICS INC | 68,914 | $657.0M | 0.97% | |
| 498 | XNETXUNLEI LTD | 100,500 | $657.0M | 0.97% | Put |
| 499 | MEDMEDIFAST INC | 3,099 | $656.0M | 0.97% | |
| 500 | —HOUGHTON MIFFLIN HARCOURT CO | 86,100 | $656.0M | 0.97% | Put |