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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 (2016Q2)
Portfolio Summary: 4,616 holdings with a total value of $8,452,428,000.
#
Name
Shares
Value ($)
%
Options
Notes
4601 ImmunoCellular Therapeutics Lt 700 0 0.00%
4602 NORTHERN DYNASTY MINERALS LTD COM 1,500 0 0.00%
4603 Key Energy Services, Inc. 368 0 0.00%
4604 PARAMOUNT GOLD NEV CORP 19 0 0.00%
4605 UNITED DEV FDG IV 100 0 0.00% Put
4606 URANIUM RES INC 8 0 0.00%
4607 A10 NETWORKS INC 56 0 0.00%
4608 INTERNATIONAL GAME TECHNOLOG 17 0 0.00%
4609 GOLDEN OCEAN GRP LTD 522 0 0.00%
4610 PHOTOMEDEX INC COM PAR $0.01 1,400 0 0.00%
4611 NANOSPHERE INC 76 0 0.00%
4612 VERASTEM INC 66 0 0.00%
4613 UQM TECHNOLOGIES INC COM 752 0 0.00%
4614 Rubicon Technology 18 0 0.00%
4615 Anworth Mtg Asset Corp 100 0 0.00%
4616 COMMUNITY HEALTH SYS INC NEW 36,212 0 0.00%
Page 93 of 93

Portfolio data is normalized using SEC Form 13F filings, including the Original 13F-HR (0000932540-16-000023, filed 2016.08.12).

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.