GROUP ONE TRADING, L.P. Information

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

Report Date: 06/30/2014

Position Statistics

Total Positions 1,887
New Positions 465
Increased Positions 931
Decreased Positions 915
Positions with Activity 1,846
Sold Out Positions 419
Total Mkt Value (in $ millions) 1,036

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

Sector Weighting

Basic Materials 3.94%
Capital Goods 1.89%
Conglomerates 0.19%
Consumer Cyclical 2.68%
Consumer/Non-Cyclical 2.31%
Energy 13.06%
Financial 7.72%
Healthcare 15.94%
Services 19.95%
Technology 16.04%
Transportation 2.94%
Utilities 4.17%

1,887 Positions as of 06/30/2014

Company Class Value of Shares ($1,000s) ▼ Change in Value ($1,000s) Change (%) Shares Held
BLACKBERRY LTD COM 42,396 -10,795 (20.3) 4,132,208
TWITTER INC COM 25,504 25,504 New 515,960
AMERICAN AIRLS GROUP INC COM 24,051 10,840 82.06 614,024
YPF SOCIEDAD ANONIMA SPON ADR CL D 22,847 -9,083 (28.45) 691,505
SIRIUS XM HLDGS INC COM 20,773 -1,304 (5.91) 5,770,215
PENNEY J C INC COM 13,504 13,504 New 1,244,589
HERTZ GLOBAL HOLDINGS INC COM 12,854 12,555 4,199.52 425,480
ENERGY TRANSFER EQUITY L P COM UT LTD PTN 12,205 9,679 383.16 199,522
NEWFIELD EXPL CO COM 11,525 -2,499 (17.82) 263,433
TESLA MTRS INC COM 11,481 2,522 28.15 43,513
RAPTOR PHARMACEUTICAL CORP COM 11,394 856 8.12 1,059,887
KINDER MORGAN INC DEL COM 11,298 -6,957 (38.11) 284,095
GOLAR LNG LTD BERMUDA SHS 11,060 3,624 48.74 180,367
ACADIA PHARMACEUTICALS COM 10,433 -3,014 (22.41) 441,888
INTERMUNE INC COM 10,097 -2,219 (18.02) 137,925
JAZZ PHARMACEUTICALS PLC SHS USD 9,920 -2,009 (16.84) 60,969
ADVANCED MICRO DEVICES INC COM 9,603 -1,510 (13.59) 2,319,620
ATLAS ENERGY LP COM UNITS LP 9,290 3,239 53.54 212,381
ACHILLION PHARMACEUTICALS INC COM 9,072 3,817 72.63 792,310
HALCON RES CORP COM NEW 9,047 5,501 155.13 1,632,969