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Disclosery

GROUP ONE TRADING LLC: QS position timeline

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

GROUP ONE TRADING LLC held 997,625 QS 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 997,625 shares
    Change vs previous 13F +111,597 shares

    0.22% of the 13F portfolio, value $7,542,045.

    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 886,028 shares
    Change vs previous 13F +210,544 shares

    0.19% of the 13F portfolio, value $5,652,859.

    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 675,484 shares
    Change vs previous 13F +212,635 shares

    0.21% of the 13F portfolio, value $7,038,543.

    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).

  4. period ended2025-09-30
    13F 462,849 shares
    Change vs previous 13F +663 shares

    0.17% of the 13F portfolio, value $5,702,300.

    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).

  5. period ended2025-06-30
    13F 462,186 shares
    Change vs previous 13F +244,627 shares

    0.1% of the 13F portfolio, value $3,105,890.

    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).

  6. period ended2025-03-31
    13F 217,559 shares
    Change vs previous 13F -289,840 shares

    0.04% of the 13F portfolio, value $905,045.

    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).

  7. period ended2024-12-31
    13F/A 507,399 shares
    Change vs previous 13F +199,139 shares

    0.09% of the 13F portfolio, value $2,633,401.

    13F-HR/A 0000932540-25-000028 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).

  8. period ended2024-09-30
    13F 308,260 shares
    Change vs previous 13F not available

    0.07% of the 13F portfolio, value $1,772,495.

    13F-HR 0000932540-24-000015 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).