GROUP ONE TRADING, L.P. Information

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

Report Date: 03/31/2014

Position Statistics

Total Positions 1,921
New Positions 468
Increased Positions 924
Decreased Positions 971
Positions with Activity 1,895
Sold Out Positions 493
Total Mkt Value (in $ millions) 979

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

Sector Weighting

Basic Materials 4.79%
Capital Goods 1.31%
Conglomerates 0.57%
Consumer Cyclical 2.43%
Consumer/Non-Cyclical 1.7%
Energy 13.95%
Financial 6.7%
Healthcare 13.99%
Services 21.17%
Technology 21.43%
Transportation 3.51%
Utilities 4.59%

1,921 Positions as of 03/31/2014

Company Class Value of Shares ($1,000s) ▼ Change in Value ($1,000s) Change (%) Shares Held
T-MOBILE US INC COM 6,604 6,604 New 200,855
KINDER MORGAN ENERGY PARTNERS UT LTD PARTNER 6,527 251 4.00 80,377
BOARDWALK PIPELINE PARTNERS LP UT LTD PARTNER 6,255 5,803 1,283.68 338,822
ATLAS ENERGY LP COM UNITS LP 5,937 2,166 57.44 138,324
LLOYDS BANKING GROUP PLC SPONSORED ADR 5,908 -48 (0.81) 1,162,991
IRON MTN INC COM 5,836 2,618 81.37 165,411
PERRIGO CO PLC SHS 5,717 5,717 New 38,822
YRC WORLDWIDE INC COM PAR $.01 5,519 1,736 45.91 191,757
SOUTHWEST AIRLS CO COM 5,474 5,418 9,730.12 200,731
MBIA INC COM 5,243 823 18.62 562,529
CANADIAN SOLAR INC COM 5,165 3,005 139.10 183,678
JIVE SOFTWARE INC COM 5,097 -12,505 (71.04) 627,736
VALEANT PHARMACEUTICALS INTL I COM 5,024 4,706 1,480.60 41,633
SPRINT CORP COM SER 1 4,866 3,031 165.14 589,779
BARNES & NOBLE INC COM 4,691 990 26.76 207,310
HALCON RES CORP COM NEW 4,532 -1,173 (20.56) 640,044
THE ADT CORPORATION COM 4,478 2,841 173.42 134,328
SOLARCITY CORP COM 4,467 2,795 167.17 68,112
KINROSS GOLD CORP COM NO PAR 4,446 1,998 81.59 1,041,330
ALCATEL-LUCENT SPONSORED ADR 4,333 2,106 94.51 1,227,576