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 1,884
New Positions 464
Increased Positions 928
Decreased Positions 915
Positions with Activity 1,843
Sold Out Positions 419
Total Mkt Value (in $ millions) 925

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

Sector Weighting

Basic Materials 3.38%
Capital Goods 1.8%
Conglomerates 0.23%
Consumer Cyclical 2.6%
Consumer/Non-Cyclical 2.52%
Energy 11.16%
Financial 8.03%
Healthcare 16.85%
Services 20.1%
Technology 15.97%
Transportation 2.81%
Utilities 4.4%

1,884 Positions as of 06/30/2014

Company Class Value of Shares ($1,000s) ▼ Change in Value ($1,000s) Change (%) Shares Held
VODAFONE GROUP PLC NEW SPNSR ADR NO PAR 7,145 5,138 255.99 227,332
ASTRAZENECA PLC SPONSORED ADR 7,104 7,104 New 102,444
BOARDWALK PIPELINE PARTNERS LP UT LTD PARTNER 6,904 1,022 17.37 397,678
IRON MTN INC COM 6,480 727 12.64 186,319
APOLLO GLOBAL MGMT LLC CL A SHS 6,356 4,293 208.01 276,112
ADVANCED MICRO DEVICES INC COM 6,240 -981 (13.59) 2,319,620
RITE AID CORP COM 6,146 -1,048 (14.57) 1,264,635
NEUSTAR INC CL A 5,933 5,324 873.56 230,236
DOLLAR GEN CORP NEW COM 5,889 3,283 125.98 94,582
DEUTSCHE BANK AG NAMEN AKT 5,887 5,193 748.06 185,429
PERRIGO CO PLC SHS 5,620 -356 (5.95) 36,512
SPRINT CORP COM SER 1 5,615 2,023 56.32 921,953
GROUPON INC COM CL A 5,552 -1,065 (16.09) 896,879
ACTAVIS PLC SHS 5,290 2,097 65.68 22,299
TALISMAN ENERGY INC COM 5,107 2,258 79.28 761,060
HALCON RES CORP COM NEW 5,062 3,078 155.13 1,632,969
SOUTHWEST AIRLS CO COM 4,930 -1,744 (26.13) 148,282
NUANCE COMMUNICATIONS INC COM 4,862 1,713 54.39 330,739
LORILLARD INC COM 4,822 4,580 1,891.09 79,763
E-COMMERCE CHINA DANGDANG INC SPN ADS COM A 4,708 774 19.69 384,949