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 1,898
New Positions 413
Increased Positions 835
Decreased Positions 1,003
Positions with Activity 1,838
Sold Out Positions 468
Total Mkt Value (in $ millions) 1,019

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

Sector Weighting

Basic Materials 4.8%
Capital Goods 2.06%
Conglomerates 1.06%
Consumer Cyclical 2.34%
Consumer/Non-Cyclical 1.74%
Energy 9.02%
Financial 8.46%
Healthcare 19.17%
Services 16.02%
Technology 14.43%
Transportation 2.59%
Utilities 2.04%

1,898 Positions as of 12/31/2014

Company Class Value of Shares ($1,000s) ▼ Change in Value ($1,000s) Change (%) Shares Held
HUNT J B TRANS SVCS INC COM -39 Sold Out 0
IAC INTERACTIVECORP COM PAR $.001 -90 Sold Out 0
ICAD INC COM NEW -25 Sold Out 0
ICICI BK LTD ADR -262 Sold Out 0
IDREAMSKY TECHNOLOGY LIMITED SPONSORED ADS -21 Sold Out 0
IGATE CORP COM -27 Sold Out 0
IMAX CORP COM -129 Sold Out 0
IMPERVA INC COM -103 Sold Out 0
INCYTE CORP COM -60 Sold Out 0
INNERWORKINGS INC COM -1 Sold Out 0
INTELSAT S A COM -3 Sold Out 0
INTERACTIVE BROKERS GROUP INC COM -218 Sold Out 0
INTERCEPT PHARMACEUTICALS INC COM -185 Sold Out 0
INTERDIGITAL INC COM -159 Sold Out 0
INTERNAP CORP COM PAR $.001 -4 Sold Out 0
INTERNATIONAL BUSINESS MACHS COM -17 Sold Out 0
INTERNATIONAL GAME TECHNOLOGY SHS USD -161 Sold Out 0
INTRAWEST RESORTS HLDGS INC COM -9 Sold Out 0
INVESTMENT TECHNOLOGY GRP NEW COM -15 Sold Out 0
INVESTORS REAL ESTATE TR SH BEN INT -9 Sold Out 0