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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 (2015Q1)
Portfolio Summary: 4,755 holdings with a total value of $6,369,518,000.
#
Name
Shares
Value ($)
%
Options
Notes
4751 DEX MEDIA INC NEW 100 0 0.00% Call
4752 GREAT PANTHER SILVER LTD 59 0 0.00%
4753 XINYUAN REAL ESTATE CO LTD 100 0 0.00% Call
4754 PHOTRONICS INC 57 0 0.00%
4755 BPZ RESOURCES INC 778 0 0.00%
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Portfolio data is normalized using SEC Form 13F filings, including the Original 13F-HR (0000932540-15-000007, filed 2015.05.14).

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.