GROUP ONE TRADING, L.P. Information

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

Report Date: 03/31/2015

Position Statistics

Total Positions 1,813
New Positions 391
Increased Positions 764
Decreased Positions 1,006
Positions with Activity 1,770
Sold Out Positions 514
Total Mkt Value (in $ millions) 844

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

Sector Weighting

Basic Materials 4.42%
Capital Goods 1.78%
Conglomerates 0.78%
Consumer Cyclical 1.96%
Consumer/Non-Cyclical 2.32%
Energy 9.86%
Financial 8.54%
Healthcare 24.29%
Services 14.67%
Technology 12.4%
Transportation 2.45%
Utilities 2.83%

1,813 Positions as of 03/31/2015

Company Class Value of Shares ($1,000s) ▼ Change in Value ($1,000s) Change (%) Shares Held
ALLERGAN PLC SHS 38,004 -4,944 (11.51) 123,829
AMERICAN AIRLS GROUP INC COM 30,816 -41,345 (57.3) 794,218
ABBVIE INC COM 26,935 13,096 94.63 393,155
BLACKBERRY LTD COM 19,187 -9,726 (33.64) 2,392,403
RAPTOR PHARMACEUTICAL CORP COM 16,556 5,204 45.85 1,053,829
INTEROIL CORP COM 14,320 4,562 46.75 248,088
MOBILEYE N V AMSTELVEEN ORD SHS 14,138 14,138 New 259,838
GILEAD SCIENCES INC COM 10,052 1,418 16.42 86,646
PENNEY J C INC COM 9,493 -7,841 (45.23) 1,097,493
TARGA RES CORP COM 9,455 5,739 154.45 108,751
RITE AID CORP COM 9,223 -5,326 (36.61) 1,096,638
BANCO SANTANDER SA ADR 9,180 5,982 187.04 1,303,996
FIDELITY NATIONAL FINANCIAL IN FNF GROUP COM 8,862 8,862 New 236,559
ACADIA PHARMACEUTICALS COM 8,626 -2,484 (22.36) 206,999
GOLAR LNG LTD BERMUDA SHS 8,442 2,456 41.02 183,444
CELLDEX THERAPEUTICS INC NEW COM 8,332 3,663 78.46 332,609
YPF SOCIEDAD ANONIMA SPON ADR CL D 8,126 -1,884 (18.82) 298,745
INFINERA CORPORATION COM 7,560 2,568 51.45 351,607
ALCATEL-LUCENT SPONSORED ADR 7,482 -1,626 (17.85) 2,066,747
TIME WARNER CABLE INC COM 7,403 4,453 150.90 40,859


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