GROUP ONE TRADING, L.P. Information

440 S. LASALLE STREET, CHICAGO, Illinois, 60605, (312) 347-8864

Report Date: 09/30/2014

Position Statistics

Total Positions 1,884
New Positions 432
Increased Positions 930
Decreased Positions 874
Positions with Activity 1,804
Sold Out Positions 387
Total Mkt Value (in $ millions) 1,120

Institutional Holdings information is filed by major institutions on form 13-F with the Securities and Exchange Commission.

Sector Weighting

Basic Materials 3.75%
Capital Goods 1.67%
Conglomerates 0.9%
Consumer Cyclical 2.95%
Consumer/Non-Cyclical 2.2%
Energy 8.42%
Financial 7.15%
Healthcare 19.35%
Services 16.41%
Technology 15.25%
Transportation 1.93%
Utilities 3.73%

1,884 Positions as of 09/30/2014

Company Class Value of Shares ($1,000s) ▼ Change in Value ($1,000s) Change (%) Shares Held
AMERICAN AIRLS GROUP INC COM 94,491 64,354 213.54 1,925,238
BLACKBERRY LTD COM 34,923 -7,019 (16.74) 3,440,697
ACTAVIS PLC SHS 31,376 15,292 95.07 117,715
KINDER MORGAN INC DEL COM 24,922 9,401 60.57 607,117
ASTRAZENECA PLC SPONSORED ADR 24,754 17,476 240.13 348,446
HERTZ GLOBAL HOLDINGS INC COM 20,105 11,374 130.27 979,758
SIRIUS XM HLDGS INC COM 19,589 -895 (4.37) 5,518,123
TWITTER INC COM 17,664 -1,700 (8.78) 470,671
RITE AID CORP COM 13,358 4,531 51.33 1,913,763
ACADIA PHARMACEUTICALS COM 12,262 -1,185 (8.81) 402,944
JAZZ PHARMACEUTICALS PLC SHS USD 11,845 1,521 14.73 69,948
YPF SOCIEDAD ANONIMA SPON ADR CL D 11,592 -4,624 (28.51) 494,330
VALEANT PHARMACEUTICALS INTL I COM 9,930 555 5.92 62,073
APOLLO GLOBAL MGMT LLC CL A SHS 9,858 2,991 43.56 396,396
VERIFONE SYS INC COM 9,398 9,088 2,931.62 299,403
NORTHSTAR RLTY FIN CORP COM 8,986 8,986 New 517,016
ACHILLION PHARMACEUTICALS INC COM 8,983 -2,783 (23.65) 604,906
MBIA INC COM 8,845 5,115 137.16 1,102,830
TESLA MTRS INC COM 8,545 -315 (3.55) 41,968
OPKO HEALTH INC COM 8,010 8,010 New 660,370


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