GROUP ONE TRADING LLC Q1 2018 Filing

Filed May 11, 2018

Portfolio Value

$10.5B

Holdings

4,806

Report Date

Q1 2018

Filing Type

13F-HR

All Holdings (4,806 positions)

#StockSharesValue% PortfolioType
501
AMERICAN AXLE & MFG HLDGS IN
35,300$537.0M5.10%Call
502
ETFIS SER TR I
78,300$536.0M5.09%Put
503
SUPNSUPERNUS PHARMACEUTICALS INC
11,700$536.0M5.09%Put
504
PENNPENN NATL GAMING INC
20,400$536.0M5.09%Call
505
LULULULULEMON ATHLETICA INC
6,000$535.0M5.08%Call
506
ALLIANCEBERNSTEIN HOLDING LP
19,900$534.0M5.07%Put
507
WTWISDOMTREE INVTS INC
58,100$533.0M5.06%Call
508
HLHECLA MNG CO
145,282$533.0M5.06%
509
IBNICICI BK LTD
60,100$532.0M5.05%Call
510
TXTTEXTRON INC
9,000$531.0M5.04%Put
511
RSP PERMIAN INC
11,300$530.0M5.03%Call
512
LGIHLGI HOMES INC
7,500$529.0M5.02%Put
513
NEVRO CORP
6,100$529.0M5.02%Put
514
NGGNATIONAL GRID PLC
9,350$528.0M5.01%
515
MICRO FOCUS INTERNATIONAL PL
37,500$527.0M5.00%Call
516
EOG RES INC
5,000$526.0M4.99%Call
517
WBAWALGREENS BOOTS ALLIANCE INC
8,040$526.0M4.99%
518
SHAKSHAKE SHACK INC
12,600$525.0M4.98%Put
519
CLOUDERA INC
24,300$524.0M4.97%Call
520
GW PHARMACEUTICALS PLC
4,638$523.0M4.96%
521
PIIMPINJ INC
40,155$523.0M4.96%
522
TDOCTELADOC INC
12,967$523.0M4.96%
523
EBIX INC
7,000$522.0M4.95%Call
524
CALLAWAY GOLF CO
31,900$522.0M4.95%Put
525
SINA CORP
5,000$521.0M4.95%Call
526
CATALYST BIOSCIENCES INC
20,100$519.0M4.93%Put
527
CALLON PETE CO DEL
39,200$519.0M4.93%Put
528
CTSHCOGNIZANT TECHNOLOGY SOLUTIO
6,424$517.0M4.91%
529
EOG RES INC
4,900$516.0M4.90%Put
530
SPARTAN MTRS INC
300$516.0M4.90%Call
531
ARWRARROWHEAD PHARMACEUTICALS IN
71,400$515.0M4.89%Call
532
WILDHORSE RESOURCE DEV CORP
26,968$515.0M4.89%
533
ATLAS AIR WORLDWIDE HLDGS IN
8,500$514.0M4.88%Call
534
AMERICAN OUTDOOR BRANDS CORP
49,800$514.0M4.88%Put
535
MEDICAL PPTYS TRUST INC
39,500$514.0M4.88%Put
536
R6C2ROYAL DUTCH SHELL PLC
7,828$513.0M4.87%
537
NUENUCOR CORP
8,400$513.0M4.87%Call
538
MCRIMONARCH CASINO & RESORT INC
12,100$512.0M4.86%Call
539
GRIDSUM HLDG INC
62,682$512.0M4.86%
540
VEREIT INC
73,400$511.0M4.85%Put
541
ADAMAS PHARMACEUTICALS INC
21,396$511.0M4.85%
542
BLUEKNIGHT ENERGY PARTNERS L
1,200$510.0M4.84%Put
543
RRRRED ROCK RESORTS INC
17,400$509.0M4.83%Call
544
ACXIOM CORP
22,400$509.0M4.83%Call
545
ENDOLOGIX INC
1,200$508.0M4.82%Put
546
PENNPENN NATL GAMING INC
19,358$508.0M4.82%
547
HCCWARRIOR MET COAL INC
18,096$507.0M4.81%
548
ENZO BIOCHEM INC
92,500$507.0M4.81%Call
549
REMARK HLDGS INC
89,300$507.0M4.81%Call
550
LYGLLOYDS BANKING GROUP PLC
136,000$506.0M4.80%Put
551
GGBGERDAU S A
108,500$506.0M4.80%Call
552
MCDERMOTT INTL INC
82,960$505.0M4.79%
553
NATIONSTAR MTG HLDGS INC
28,060$504.0M4.78%
554
SECOND SIGHT MED PRODS INC
262,500$504.0M4.78%Call
555
TSCOTRACTOR SUPPLY CO
8,000$504.0M4.78%Put
556
NEONEOGENOMICS INC
61,700$503.0M4.77%Call
557
HELIOS & MATHESON ANALYTICS
177,700$503.0M4.77%Put
558
INGING GROEP N V
29,700$503.0M4.77%Put
559
THERAPEUTICSMD INC
102,800$501.0M4.76%Call
560
BROOKDALE SR LIVING INC
74,600$501.0M4.76%Put
561
5TCTRUECAR INC
52,626$498.0M4.73%
562
OWENS ILL INC
23,000$498.0M4.73%Call
563
MEET GROUP INC
237,900$497.0M4.72%Put
564
CXOEURCONCHO RES INC
3,304$497.0M4.72%
565
KMXCARMAX INC
8,000$496.0M4.71%Call
566
KTOSKRATOS DEFENSE & SEC SOLUTIO
48,200$496.0M4.71%Call
567
ARWRARROWHEAD PHARMACEUTICALS IN
68,738$496.0M4.71%
568
PAGPPLAINS GP HLDGS L P
22,800$496.0M4.71%Call
569
SRGSERITAGE GROWTH PPTYS
13,900$494.0M4.69%Put
570
ROCKWELL MED INC
94,900$494.0M4.69%Call
571
HDBHDFC BANK LTD
5,000$494.0M4.69%Call
572
WTIW & T OFFSHORE INC
111,200$493.0M4.68%Put
573
ENVESTNET INC
8,600$493.0M4.68%Put
574
WTTRSELECT ENERGY SVCS INC
39,100$493.0M4.68%
575
ECLECOLAB INC
3,600$493.0M4.68%Call
576
INTERCEPT PHARMACEUTICALS IN
8,000$492.0M4.67%Call
577
TAILORED BRANDS INC
19,600$491.0M4.66%Put
578
MICHAELS COS INC
24,900$491.0M4.66%Put
579
EXPEEXPEDIA GROUP INC
4,448$491.0M4.66%
580
SHAKSHAKE SHACK INC
11,800$491.0M4.66%Call
581
MSBMESABI TR
18,900$487.0M4.62%Call
582
HALHALLIBURTON CO
10,381$487.0M4.62%
583
NKENIKE INC
7,300$485.0M4.60%Call
584
FERRO CORP
20,900$485.0M4.60%Call
585
SHIP FINANCE INTERNATIONAL L
33,900$485.0M4.60%Put
586
SONOCO PRODS CO
100$485.0M4.60%Call
587
GSV CAP CORP
64,300$485.0M4.60%Call
588
CWHCAMPING WORLD HLDGS INC
15,000$484.0M4.59%Put
589
SNEURSANCHEZ ENERGY CORP
154,680$484.0M4.59%
590
HI-CRUSH PARTNERS LP
45,598$483.0M4.58%
591
MCEWEN MNG INC
232,300$483.0M4.58%Put
592
SPECTRUM PHARMACEUTICALS INC
30,000$483.0M4.58%Put
593
CSRA INC
11,700$482.0M4.58%
594
ROWAN COMPANIES PLC
41,400$478.0M4.54%Call
595
TAUBMAN CTRS INC
8,400$478.0M4.54%Put
596
SYNCHRONOSS TECHNOLOGIES INC
45,281$478.0M4.54%
597
SWITCH INC
300$477.0M4.53%Call
598
UNMUNUM GROUP
10,000$476.0M4.52%Put
599
FITBFIFTH THIRD BANCORP
15,000$476.0M4.52%Put
600
GASLOG LTD
28,700$472.0M4.48%Call
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