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%

1,866 Positions as of 12/31/2013

Company Class Value of Shares ($1,000s) Change in Value ($1,000s) ▲ Change (%) Shares Held
NOKIA CORP SPONSORED ADR -10,528 Sold Out 0
INVENSENSE INC COM 1,892 -7,268 (79.34) 88,010
PILGRIMS PRIDE CORP NEW COM 36 -6,850 (99.47) 1,630
SOFTBANK CORP ADR -5,377 Sold Out 0
BANCO SANTANDER SA ADR 1,418 -4,473 (75.93) 144,420
OPKO HEALTH INC COM 132 -4,470 (97.14) 16,165
POWERSHS DB US DOLLAR INDEX TR DOLL INDX BULL 445 -4,357 (90.73) 20,824
ZYNGA INC CL A 1,761 -4,269 (70.79) 410,642
ZOETIS INC CL A 2,391 -3,460 (59.13) 83,615
NUSTAR ENERGY LP UNIT COM -3,118 Sold Out 0
BARCLAYS BK PLC IPATH S&P500 VIX 834 -2,998 (78.23) 20,000
LIBERTY GLOBAL PLC SHS CL C 9,819 -2,824 (22.34) 255,026
INTEROIL CORP COM -2,790 Sold Out 0
MBIA INC COM 5,676 -2,607 (31.48) 474,223
LINN ENERGY LLC UNIT LTD LIAB -2,587 Sold Out 0
CHIMERA INVT CORP COM 1,932 -2,539 (56.78) 621,369
ONEOK INC NEW COM 195 -2,516 (92.8) 3,199
UBIQUITI NETWORKS INC COM 117 -2,444 (95.43) 2,854
JA SOLAR HOLDINGS CO LTD SPON ADR REP5ORD 863 -2,315 (72.84) 85,055
SOLARCITY CORP COM 1,446 -2,174 (60.05) 25,494