GROUP ONE TRADING, L.P. Information

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

Report Date: 12/31/2014

Position Statistics

Total Positions 1,899
New Positions 413
Increased Positions 835
Decreased Positions 1,004
Positions with Activity 1,839
Sold Out Positions 468
Total Mkt Value (in $ millions) 1,033

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

Sector Weighting

Basic Materials 4.67%
Capital Goods 2.05%
Conglomerates 1.05%
Consumer Cyclical 2.27%
Consumer/Non-Cyclical 1.74%
Energy 9.03%
Financial 8.44%
Healthcare 19.15%
Services 16%
Technology 14.47%
Transportation 2.47%
Utilities 2.05%

413 New Positions as of 12/31/2014

Company Class Value of Shares ($1,000s) ▼ Change in Value ($1,000s) Change (%) Shares Held
UNITED STATES OIL FUND LP UNITS 3,698 3,698 New 181,290
MARKWEST ENERGY PARTNERS L P UNIT LTD PARTN 3,394 3,394 New 50,154
RESTAURANT BRANDS INTL INC COM 2,749 2,749 New 66,441
NORTHSTAR RLTY FIN CORP COM NEW 2,465 2,465 New 129,727
AVIS BUDGET GROUP COM 2,445 2,445 New 44,184
INVESCO LTD SHS 2,412 2,412 New 57,969
CLIFFS NAT RES INC COM 2,212 2,212 New 387,990
BLOCK H & R INC COM 1,829 1,829 New 57,980
CVR REFNG LP COMUNIT REP LT 1,662 1,662 New 75,036
U S SILICA HLDGS INC COM 1,614 1,614 New 42,834
POWERSHS DB US DOLLAR INDEX TR DOLL INDX BULL 1,534 1,534 New 61,304
DREAMWORKS ANIMATION SKG INC CL A 1,533 1,533 New 61,486
ULTRA PETROLEUM CORP COM 1,363 1,363 New 76,719
OCEAN RIG UDW INC SHS 1,296 1,296 New 172,964
GREEN DOT CORP CL A 1,261 1,261 New 77,146
EL POLLO LOCO HLDGS INC COM 1,254 1,254 New 47,320
BAKER HUGHES INC COM 1,137 1,137 New 16,476
GRUBHUB INC COM 905 905 New 22,582
WEBMD HEALTH CORP COM 835 835 New 19,430
REGULUS THERAPEUTICS INC COM 726 726 New 53,901