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Institutional Investment Manager
GROUP ONE TRADING LLC
GROUP ONE TRADING LLC (CIK: 0000932540) incorporated in Delaware, located at 425 S Financial Place, Chicago, IL. Institutional holdings reported to the SEC.

Institutional Holdings (2015Q4)
Portfolio Summary: 4,723 holdings with a total value of $8,460,518,000.
#
Name
Shares
Value ($)
%
Options
Notes
4701 Aerohive Networks, Inc. 75 0 0.00%
4702 NANOSPHERE INC 76 0 0.00%
4703 CHINA XD PLASTICS CO LTD 100 0 0.00% Call
4704 ASANKO GOLD INC 100 0 0.00% Call
4705 ROYALE ENERGY INC 983 0 0.00%
4706 EPIRUS BIOPHARMACEUTICALS IN 100 0 0.00% Call
4707 AZURE MIDSTREAM PARTNERS LP 100 0 0.00% Put
4708 RCS CAP CORP 100 0 0.00% Put
4709 ALEXCO RESOURCE CORP 122 0 0.00%
4710 AMYRIS INC 100 0 0.00% Put
4711 LEGACY RESVS LP 100 0 0.00% Call
4712 CNINSURE INC 7 0 0.00%
4713 GREAT PANTHER SILVER LTD 59 0 0.00%
4714 DRDGOLD LIMITED 100 0 0.00%
4715 DENISON MINES CORP 141 0 0.00%
4716 AXT INC 100 0 0.00%
4717 DRAGONWAVE INC 97 0 0.00%
4718 UQM TECHNOLOGIES INC COM 52 0 0.00%
4719 STMICROELECTRONICS N V 52 0 0.00%
4720 SMART TECHNOLOGIES INC 1 0 0.00%
4721 RTI SURGICAL INC 100 0 0.00% Call
4722 SINOVAC BIOTECH LTD 9 0 0.00%
4723 RCS CAP CORP 500 0 0.00% Call
Page 95 of 95

Portfolio data is normalized using SEC Form 13F filings, including the Original 13F-HR (0000932540-16-000018, filed 2016.02.11).

From 2023-01-03 onward, the SEC requires values to be reported in nearest dollars. Earlier filings reported values in thousands; therefore, positions shown as $0 in older filings may represent actual values between $0–$999.