GROUP ONE TRADING, L.P. Information

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

Report Date: 03/31/2016

Position Statistics

Total Positions 1,705
New Positions 364
Increased Positions 683
Decreased Positions 949
Positions with Activity 1,632
Sold Out Positions 515
Total Mkt Value (in $ millions) 911

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

Sector Weighting

Basic Materials 11.65%
Capital Goods 1.7%
Conglomerates 0.54%
Consumer Cyclical 0.94%
Consumer/Non-Cyclical 2.64%
Energy 7.64%
Financial 10.82%
Healthcare 21.18%
Services 10.04%
Technology 16.68%
Transportation 1.81%
Utilities 2.13%

1,632 Activity Positions as of 03/31/2016

Company Class Value of Shares ($1,000s) ▼ Change in Value ($1,000s) Change (%) Shares Held
ALLERGAN PLC SHS 36,328 -35,590 (49.49) 161,093
BARRICK GOLD CORP COM 26,906 3,837 16.63 1,502,264
FREEPORT-MCMORAN INC CL B 25,032 18,109 261.57 2,199,655
21VIANET GROUP INC SPONSORED ADR 20,627 -13,059 (38.77) 1,474,439
QIHOO 360 TECHNOLOGY CO LTD ADS 20,436 16,923 481.73 278,414
BANK AMER CORP COM 19,284 19,284 New 1,332,694
MOBILEYE N V AMSTELVEEN ORD SHS 18,117 16,079 788.93 491,515
ADVANCED MICRO DEVICES INC COM 17,581 9,300 112.31 4,351,806
TEVA PHARMACEUTICAL INDS LTD ADR 14,261 4,184 41.52 278,431
ABBVIE INC COM 13,379 -7,556 (36.09) 225,612
UNITED STATES OIL FUND LP UNITS 11,876 5,832 96.49 1,018,547
OPKO HEALTH INC COM 11,794 -8,515 (41.93) 1,173,530
BLACKBERRY LTD COM 11,743 -6,903 (37.02) 1,696,977
PFIZER INC COM 11,412 11,412 New 338,929
TWITTER INC COM 9,463 2,152 29.44 656,701
UNITED STATES NATL GAS FUND LP UNIT PAR $0.001 9,456 4,295 83.22 1,421,889
MYLAN N V SHS EURO 9,381 -12,406 (56.94) 227,630
ALCOA INC COM 9,285 65 .70 1,000,563
HALLIBURTON CO COM 9,241 6,935 300.79 222,884
JD COM INC SPON ADR CL A 8,562 6,966 436.46 374,030