GROUP ONE TRADING, L.P. Information

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

Report Date: 03/31/2015

Position Statistics

Total Positions 1,812
New Positions 392
Increased Positions 763
Decreased Positions 1,006
Positions with Activity 1,769
Sold Out Positions 513
Total Mkt Value (in $ millions) 801

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

Sector Weighting

Basic Materials 3.65%
Capital Goods 1.67%
Conglomerates 0.79%
Consumer Cyclical 1.98%
Consumer/Non-Cyclical 2.36%
Energy 8.63%
Financial 8.84%
Healthcare 26%
Services 14.63%
Technology 11.86%
Transportation 2.43%
Utilities 2.92%

1,812 Positions as of 03/31/2015

Company Class Value of Shares ($1,000s) ▼ Change in Value ($1,000s) Change (%) Shares Held
CANADIAN NAT RES LTD COM 300 84 38.77 12,940
DOMINOS PIZZA INC COM 300 300 New 2,691
GLAXOSMITHKLINE PLC SPONSORED ADR 299 24 8.70 7,188
DISCOVERY COMMUNICATNS NEW COM SER A 297 297 New 9,419
3-D SYS CORP DEL COM NEW 296 -2,072 (87.5) 20,309
AGIOS PHARMACEUTICALS INC COM 293 16 5.60 2,695
SEABRIDGE GOLD INC COM 290 286 7,032.34 73,891
PVH CORP COM 290 -1,343 (82.27) 2,597
FUELCELL ENERGY INC COM 287 120 72.29 350,521
CALERES INC COM 287 230 405.56 9,100
FLY LEASING LTD SPONSORED ADR 286 286 New 18,895
CORNERSTONE ONDEMAND INC COM 284 229 413.41 7,927
OWENS ILL INC COM NEW 284 284 New 13,784
AK STL HLDG CORP COM 284 193 213.20 112,600
GLOBALSTAR INC COM 283 283 New 133,703
TENET HEALTHCARE CORP COM NEW 283 -381 (57.32) 5,022
ANNALY CAP MGMT INC COM 280 -577 (67.31) 29,106
REGAL ENTMT GROUP CL A 280 280 New 14,823
COMPANHIA DE SANEAMENTO BASICO SPONSORED ADR 280 -143 (33.79) 53,815
UNITED STATES STL CORP NEW COM 280 260 1,297.40 16,657