GROUP ONE TRADING, L.P. Information

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

Report Date: 06/30/2015

Position Statistics

Total Positions 1,741
New Positions 445
Increased Positions 907
Decreased Positions 780
Positions with Activity 1,687
Sold Out Positions 362
Total Mkt Value (in $ millions) 915

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

Sector Weighting

Basic Materials 4%
Capital Goods 1.42%
Conglomerates 0.98%
Consumer Cyclical 1.42%
Consumer/Non-Cyclical 2.58%
Energy 8.22%
Financial 9.63%
Healthcare 22.9%
Services 15.61%
Technology 14.05%
Transportation 3.06%
Utilities 1.46%

1,741 Positions as of 06/30/2015

Company Class Value of Shares ($1,000s) ▼ Change in Value ($1,000s) Change (%) Shares Held
POLYCOM INC COM -2 Sold Out 0
PORTLAND GEN ELEC CO COM NEW -59 Sold Out 0
PORTOLA PHARMACEUTICALS INC COM -61 Sold Out 0
PRANA BIOTECHNOLOGY LTD SPONSORED ADR -30 Sold Out 0
PRECIDIAN ETFS TR MAXIS NIKKEI -5 Sold Out 0
PROOFPOINT INC COM -8 Sold Out 0
QLOGIC CORP COM -98 Sold Out 0
QUALITY SYS INC COM -2 Sold Out 0
QUICKSILVER RESOURCES INC COM -6 Sold Out 0
RADIAN GROUP INC COM -193 Sold Out 0
RADIOSHACK CORP COM -3 Sold Out 0
RANDGOLD RES LTD ADR -6 Sold Out 0
REALNETWORKS INC COM NEW -3 Sold Out 0
REGIONAL MGMT CORP COM -3 Sold Out 0
RENREN INC SPONSORED ADR -108 Sold Out 0
RENTECH INC COM NEW -3 Sold Out 0
RETAIL OPPORTUNITY INVTS CORP COM -39 Sold Out 0
REVANCE THERAPEUTICS INC COM -70 Sold Out 0
REXFORD INDL RLTY INC COM -16 Sold Out 0
ROCK CREEK PHARMACEUTICALS INC COM NEW -5 Sold Out 0


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