GROUP ONE TRADING, L.P. Information

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

Report Date: 03/31/2014

Position Statistics

Total Positions 1,921
New Positions 468
Increased Positions 924
Decreased Positions 971
Positions with Activity 1,895
Sold Out Positions 493
Total Mkt Value (in $ millions) 979

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

Sector Weighting

Basic Materials 4.79%
Capital Goods 1.31%
Conglomerates 0.57%
Consumer Cyclical 2.43%
Consumer/Non-Cyclical 1.7%
Energy 13.95%
Financial 6.7%
Healthcare 13.99%
Services 21.17%
Technology 21.43%
Transportation 3.51%
Utilities 4.59%

1,895 Activity Positions as of 03/31/2014

Company Class Value of Shares ($1,000s) ▼ Change in Value ($1,000s) Change (%) Shares Held
BLACKBERRY LTD COM 59,206 43,489 276.71 5,184,386
YPF SOCIEDAD ANONIMA SPON ADR CL D 36,704 35,836 4,128.47 966,416
TIME WARNER CABLE INC COM 32,439 11,786 57.07 218,373
SIRIUS XM HLDGS INC COM 20,727 5,111 32.73 6,132,352
KINDER MORGAN INC DEL COM 16,378 10,801 193.63 459,038
NOKIA CORP SPONSORED ADR 15,605 15,605 New 2,069,677
AMERICAN AIRLS GROUP INC COM 14,442 14,442 New 337,271
NEWFIELD EXPL CO COM 13,803 268 1.98 320,557
ACADIA PHARMACEUTICALS COM 12,211 2,100 20.77 569,546
ADVANCED MICRO DEVICES INC COM 11,516 6,837 146.13 2,684,435
JAZZ PHARMACEUTICALS PLC SHS USD 11,180 11,180 New 73,315
RITE AID CORP COM 10,925 -5,478 (33.4) 1,480,373
RAPTOR PHARMACEUTICAL CORP COM 10,068 6,574 188.20 980,302
SAFEWAY INC COM NEW 9,315 8,974 2,629.32 270,012
AMERICAN CAPITAL AGENCY CORP COM 7,961 -461 (5.47) 345,980
TESLA MTRS INC COM 7,452 7,452 New 33,955
GOLAR LNG LTD BERMUDA SHS 7,137 5,310 290.54 121,260
LORAL SPACE & COMMUNICATNS INC COM 7,105 108 1.55 98,316
INTERMUNE INC COM 7,007 7,007 New 168,241
GROUPON INC COM CL A 6,948 993 16.68 1,068,851


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