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 1,810
New Positions 391
Increased Positions 762
Decreased Positions 1,005
Positions with Activity 1,767
Sold Out Positions 512
Total Mkt Value (in $ millions) 810

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

Sector Weighting

Basic Materials 3.63%
Capital Goods 1.69%
Conglomerates 0.78%
Consumer Cyclical 1.99%
Consumer/Non-Cyclical 2.41%
Energy 8.46%
Financial 8.62%
Healthcare 26.27%
Services 14.61%
Technology 11.67%
Transportation 2.65%
Utilities 2.89%

1,810 Positions as of 03/31/2015

Company Class Value of Shares ($1,000s) ▼ Change in Value ($1,000s) Change (%) Shares Held
ALLERGAN PLC SHS 41,473 -5,396 (11.51) 123,829
AMERICAN AIRLS GROUP INC COM 33,127 -44,446 (57.3) 794,218
ABBVIE INC COM 27,415 17,164 167.44 393,155
BLACKBERRY LTD COM 18,063 -9,156 (33.64) 2,392,403
MOBILEYE N V AMSTELVEEN ORD SHS 15,572 15,572 New 259,838
RAPTOR PHARMACEUTICAL CORP COM 15,523 4,880 45.85 1,053,829
INTEROIL CORP COM 10,546 3,360 46.75 248,088
GILEAD SCIENCES INC COM 10,363 1,462 16.42 86,646
ACADIA PHARMACEUTICALS COM 9,975 -2,872 (22.36) 206,999
RITE AID CORP COM 9,683 -5,592 (36.61) 1,096,638
FIDELITY NATIONAL FINANCIAL IN FNF GROUP COM 9,387 9,387 New 236,559
TARGA RES CORP COM 9,232 5,604 154.45 108,751
PENNEY J C INC COM 8,967 -7,406 (45.23) 1,097,493
BANCO SANTANDER SA ADR 8,867 5,778 187.04 1,303,996
INFINERA CORPORATION COM 8,460 2,874 51.45 351,607
TIME WARNER CABLE INC COM 7,815 4,700 150.90 40,859
GOLAR LNG LTD BERMUDA SHS 7,765 2,259 41.02 183,444
CELLDEX THERAPEUTICS INC NEW COM 7,750 3,407 78.46 332,609
ALCATEL-LUCENT SPONSORED ADR 7,647 -1,662 (17.85) 2,066,747
JD COM INC SPON ADR CL A 7,149 6,348 792.23 217,169


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