GROUP ONE TRADING, L.P. Information

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

Report Date: 12/31/2013

Position Statistics

Total Positions 1,866
New Positions 491
Increased Positions 1,006
Decreased Positions 832
Positions with Activity 1,838
Sold Out Positions 408
Total Mkt Value (in $ millions) 905

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

Sector Weighting

Basic Materials 4.53%
Capital Goods 2.13%
Conglomerates 1.03%
Consumer Cyclical 2.68%
Consumer/Non-Cyclical 1.81%
Energy 15.12%
Financial 9.69%
Healthcare 13.61%
Services 21.24%
Technology 21.02%
Transportation 2.36%
Utilities 3.41%

408 Sold Out Positions as of 12/31/2013

Company Class Value of Shares ($1,000s) ▼ Change in Value ($1,000s) Change (%) Shares Held
51JOB INC SP ADR REP COM -28 Sold Out 0
ACCESS MIDSTREAM PARTNERS L P UNIT -33 Sold Out 0
ACETO CORP COM -40 Sold Out 0
ADVANCED ENERGY INDS COM -2 Sold Out 0
AECOM TECHNOLOGY CORP DELAWARE COM -164 Sold Out 0
AEGERION PHARMACEUTICALS INC COM -1,159 Sold Out 0
AEROPOSTALE COM -161 Sold Out 0
AETNA INC NEW COM -5 Sold Out 0
AIR PRODS & CHEMS INC COM -153 Sold Out 0
AIRGAS INC COM -255 Sold Out 0
AK STL HLDG CORP COM -983 Sold Out 0
ALBANY MOLECULAR RESH INC COM -111 Sold Out 0
ALIMERA SCIENCES INC COM -84 Sold Out 0
ALLIANCE RES PARTNER L P UT LTD PART -79 Sold Out 0
ALON USA ENERGY INC COM -11 Sold Out 0
ALTRIA GROUP INC COM -269 Sold Out 0
ALUMINUM CORP CHINA LTD SPON ADR H SHS -7 Sold Out 0
AMARIN CORP PLC SPONS ADR NEW -642 Sold Out 0
AMERICA FIRST MULTIFAMILY INV BEN UNIT CTF -17 Sold Out 0
AMERICA MOVIL SAB DE CV SPON ADR L SHS -125 Sold Out 0