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Disclosery

GROUP ONE TRADING LLC: IBEX position timeline

Available 13F reports, 13D and 13G stakes and each Form 3, 4 and 5 line of GROUP ONE TRADING LLC on IBEX, newest first. How the timeline and the estimate are built.

GROUP ONE TRADING LLC held 0 IBEX shares at 2025-09-30 per its 13F-HR filed 2025-11-12.

the latest 13F is the newest step

  1. period ended2025-09-30
    13F 0 shares
    Change vs previous 13F -600 shares

    13F-HR 0000932540-25-000040 filed by GROUP ONE TRADING LLC
    Filed (acceptance time not in the bulk data set), ingested

    Acceptance time not in the bulk data set (spec §4.2).

    Exited: the 13F for this period no longer lists the position.

  2. period ended2025-06-30
    13F 600 shares
    Change vs previous 13F +400 shares

    <0.01% of the 13F portfolio, value $17,460.

    13F-HR 0000932540-25-000034 filed by GROUP ONE TRADING LLC
    Filed (acceptance time not in the bulk data set), ingested

    Acceptance time not in the bulk data set (spec §4.2).

  3. period ended2025-03-31
    13F 200 shares
    Change vs previous 13F not available

    <0.01% of the 13F portfolio, value $4,870.

    13F-HR 0000932540-25-000027 filed by GROUP ONE TRADING LLC
    Filed (acceptance time not in the bulk data set), ingested

    Acceptance time not in the bulk data set (spec §4.2).