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 1,885
New Positions 465
Increased Positions 931
Decreased Positions 913
Positions with Activity 1,844
Sold Out Positions 419
Total Mkt Value (in $ millions) 964

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

Sector Weighting

Basic Materials 3.58%
Capital Goods 1.85%
Conglomerates 0.22%
Consumer Cyclical 2.62%
Consumer/Non-Cyclical 2.5%
Energy 12.63%
Financial 7.89%
Healthcare 15.55%
Services 19.85%
Technology 16.18%
Transportation 3.03%
Utilities 4.35%

1,885 Positions as of 06/30/2014

Company Class Value of Shares ($1,000s) ▼ Change in Value ($1,000s) Change (%) Shares Held
II VI INC COM -21 Sold Out 0
IMMERSION CORP COM -71 Sold Out 0
IMPERIAL OIL LTD COM NEW -9 Sold Out 0
INCONTACT INC COM -9 Sold Out 0
INFORMATICA CORP COM -4 Sold Out 0
ING GROEP N V SPONSORED ADR -11 Sold Out 0
INGLES MKTS INC CL A -9 Sold Out 0
INSYS THERAPEUTICS INC NEW COM NEW -166 Sold Out 0
INTERACTIVE INTELLIGENCE GROUP COM -10 Sold Out 0
INTERCEPT PHARMACEUTICALS INC COM -869 Sold Out 0
INTERSECTIONS INC COM -2 Sold Out 0
INTERSIL CORP CL A -23 Sold Out 0
INTL FCSTONE INC COM -5 Sold Out 0
INTL PAPER CO COM -148 Sold Out 0
ION GEOPHYSICAL CORP COM -84 Sold Out 0
IPG PHOTONICS CORP COM -30 Sold Out 0
IROBOT CORP COM -703 Sold Out 0
ITRON INC COM -24 Sold Out 0
JABIL CIRCUIT INC COM -53 Sold Out 0
JAMBA INC COM NEW -117 Sold Out 0