GROUP ONE TRADING LLC Q1 2019 Filing

Filed May 13, 2019

Portfolio Value

$16.7B

Holdings

4,769

Report Date

Q1 2019

Filing Type

13F-HR

All Holdings (4,769 positions)

#StockSharesValue% PortfolioType
501
CPSSCONSUMER PORTFOLIO SVCS INC
148,800$519.0M3.11%Call
502
BWABORGWARNER INC
13,500$519.0M3.11%Put
503
LGIHLGI HOMES INC
8,600$518.0M3.11%Call
504
INVITAE CORP
22,000$515.0M3.09%Call
505
TUPPERWARE BRANDS CORP
20,100$514.0M3.08%Call
506
INTEGRATED DEVICE TECHNOLOGY
10,500$514.0M3.08%Put
507
MEDICAL PPTYS TRUST INC
27,700$513.0M3.08%Put
508
REZIRESIDEO TECHNOLOGIES INC
26,600$513.0M3.08%Put
509
OFGOFG BANCORP
25,800$511.0M3.06%Put
510
R6C2ROYAL DUTCH SHELL PLC
7,997$511.0M3.06%
511
MASMASCO CORP
13,000$511.0M3.06%Put
512
ACELRX PHARMACEUTICALS INC
146,700$511.0M3.06%Call
513
PROSPECT CAPITAL CORPORATION
78,400$511.0M3.06%Call
514
LUMBER LIQUIDATORS HLDGS INC
50,600$511.0M3.06%Put
515
CERSCERUS CORP
81,800$510.0M3.06%Put
516
MULTI COLOR CORP
10,200$509.0M3.05%
517
ARROW ELECTRS INC
6,600$509.0M3.05%Call
518
VALLEY NATL BANCORP
53,000$508.0M3.05%Put
519
PENNYMAC MTG INVT TR
24,500$507.0M3.04%Call
520
FORTRESS TRANS INFRST INVS L
29,600$506.0M3.03%Call
521
CXCEMEX SAB DE CV
109,000$506.0M3.03%Call
522
MTSIMACOM TECH SOLUTIONS HLDGS I
30,250$505.0M3.03%
523
CWHCAMPING WORLD HLDGS INC
36,100$502.0M3.01%Put
524
BROOKFIELD PPTY PARTNERS L P
24,400$502.0M3.01%Put
525
CARAEURCARA THERAPEUTICS INC
25,595$502.0M3.01%
526
WVEWAVE LIFE SCIENCES LTD
12,900$501.0M3.00%Call
527
REDFIN CORP
24,700$501.0M3.00%Put
528
HRTXHERON THERAPEUTICS INC
20,500$501.0M3.00%Call
529
SPYUBANK MONTREAL QUE
6,700$501.0M3.00%Call
530
HRBBLOCK H & R INC
20,924$501.0M3.00%
531
WHWYNDHAM HOTELS & RESORTS INC
10,000$500.0M3.00%Put
532
CF INDS HLDGS INC
12,200$499.0M2.99%Call
533
FIREEYE INC
29,700$499.0M2.99%Call
534
LIBERTY GLOBAL PLC
19,900$496.0M2.97%Call
535
ALTERYX INC
5,900$495.0M2.97%Put
536
LADDER CAP CORP
29,100$495.0M2.97%Call
537
U S G CORP
11,400$494.0M2.96%Put
538
PHGKONINKLIJKE PHILIPS N V
12,100$494.0M2.96%Put
539
ARENA PHARMACEUTICALS INC
11,000$493.0M2.96%Put
540
COMPANHIA SIDERURGICA NACION
120,000$493.0M2.96%Call
541
INTERSECT ENT INC
15,339$493.0M2.96%
542
GFIGOLD FIELDS LTD NEW
132,100$493.0M2.96%Put
543
HTDCORCEPT THERAPEUTICS INC
41,937$492.0M2.95%
544
ALDXALDEYRA THERAPEUTICS INC
54,500$492.0M2.95%Put
545
WINGWINGSTOP INC
6,463$491.0M2.94%
546
OPTUALTICE USA INC
22,872$491.0M2.94%
547
AEOAMERICAN EAGLE OUTFITTERS IN
22,100$490.0M2.94%Call
548
SSNCSS&C TECHNOLOGIES HLDGS INC
7,700$490.0M2.94%Call
549
WESTERN UN CO
26,500$489.0M2.93%Put
550
AGENUS INC
164,500$489.0M2.93%Put
551
GALTGALECTIN THERAPEUTICS INC
95,700$489.0M2.93%Call
552
BZUNBAOZUN INC
11,764$489.0M2.93%
553
LUMINEX CORP DEL
21,200$488.0M2.93%Call
554
ANGI HOMESERVICES INC
31,600$488.0M2.93%Call
555
UPLDUPLAND SOFTWARE INC
11,500$487.0M2.92%Put
556
GPREGREEN PLAINS INC
29,200$487.0M2.92%Call
557
MOBILE TELESYSTEMS PJSC
64,300$486.0M2.91%Put
558
BNSBANK N S HALIFAX
9,100$485.0M2.91%Put
559
KMXCARMAX INC
6,948$485.0M2.91%
560
DEAN FOODS CO NEW
160,200$485.0M2.91%Call
561
FEYECHFFIREEYE INC
28,845$484.0M2.90%
562
GASLOG PARTNERS LP
21,400$484.0M2.90%Call
563
XLFISELECT SECTOR SPDR TR
8,700$483.0M2.90%Call
564
HARROW HEALTH INC
96,700$482.0M2.89%Put
565
DENBURY RES INC
234,900$482.0M2.89%Call
566
OSPNONESPAN INC
25,000$481.0M2.88%Put
567
NVSNOVARTIS A G
5,000$481.0M2.88%Call
568
VICRVICOR CORP
15,500$481.0M2.88%Put
569
WINNEBAGO INDS INC
15,400$480.0M2.88%Put
570
SOTHEBYS
12,700$479.0M2.87%Put
571
VNET21VIANET GROUP INC
60,281$479.0M2.87%
572
VERINT SYS INC
8,000$479.0M2.87%Call
573
YUMYUM BRANDS INC
4,800$479.0M2.87%Call
574
VERINT SYS INC
8,000$479.0M2.87%Put
575
GARDNER DENVER HLDGS INC
17,200$478.3M2.87%Call
576
HEXO CORP
71,800$476.0M2.85%Put
577
BGSB & G FOODS INC NEW
19,500$476.0M2.85%Put
578
SONOSONOS INC
46,300$476.0M2.85%Put
579
GUESS INC
24,200$474.0M2.84%Put
580
OCWEN FINL CORP
260,300$474.0M2.84%Call
581
LBEURL BRANDS INC
17,179$474.0M2.84%
582
BECNUSDBEACON ROOFING SUPPLY INC
14,752$474.0M2.84%
583
DAVE & BUSTERS ENTMT INC
9,500$474.0M2.84%Put
584
WOOFOOT LOCKER INC
7,806$473.0M2.84%
585
NHTCNATURAL HEALTH TRENDS CORP
36,460$473.0M2.84%
586
ANAPLAN INC
12,000$472.0M2.83%Call
587
BHP GROUP PLC
9,749$471.0M2.82%
588
KEANE GROUP INC
43,100$469.0M2.81%Put
589
ENLINK MIDSTREAM LLC
36,700$469.0M2.81%Call
590
NTLAINTELLIA THERAPEUTICS INC
27,400$468.0M2.81%Call
591
ENTERCOM COMMUNICATIONS CORP
88,908$467.0M2.80%
592
MGIC INVT CORP WIS
35,400$467.0M2.80%Put
593
NMRKNEWMARK GROUP INC
56,006$467.0M2.80%
594
GFIGOLD FIELDS LTD NEW
124,700$465.0M2.79%Call
595
NII HLDGS INC
237,000$465.0M2.79%Call
596
BARNES & NOBLE INC
85,600$465.0M2.79%Call
597
KANSAS CITY SOUTHERN
4,000$464.0M2.78%Put
598
TRAVELPORT WORLDWIDE LTD
29,518$464.0M2.78%
599
MXMAGNACHIP SEMICONDUCTOR CORP
62,697$464.0M2.78%
600
LAUDER ESTEE COS INC
2,800$464.0M2.78%Put
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