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Disclosery

GROUP ONE TRADING LLC: FIX position timeline

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

GROUP ONE TRADING LLC held 307 FIX shares at 2026-06-30 per its 13F-HR filed 2026-08-14.

the latest 13F is the newest step

  1. period ended2026-06-30
    13F 307 shares
    Change vs previous 13F +260 shares

    0.02% of the 13F portfolio, value $608,459.

    13F-HR 0000932540-26-000011 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).

  2. period ended2026-03-31
    13F 47 shares
    Change vs previous 13F +13 shares

    <0.01% of the 13F portfolio, value $64,813.

    13F-HR 0000932540-26-000005 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 ended2025-12-31
    13F 34 shares
    Change vs previous 13F not available

    <0.01% of the 13F portfolio, value $31,732.

    13F-HR 0000932540-26-000002 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).