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Disclosery

GROUP ONE TRADING LLC: CAN position timeline

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

GROUP ONE TRADING LLC held 573,476 CAN 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 573,476 shares
    Change vs previous 13F +282,935 shares

    <0.01% of the 13F portfolio, value $164,645.

    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 290,541 shares
    Change vs previous 13F +288,444 shares

    <0.01% of the 13F portfolio, value $125,456.

    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 2,097 shares
    Change vs previous 13F -386,756 shares

    <0.01% of the 13F portfolio, value $1,447.

    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 388,853 shares
    Change vs previous 13F -105,978 shares

    0.01% of the 13F portfolio, value $342,813.

    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 494,831 shares
    Change vs previous 13F -136,191 shares

    0.01% of the 13F portfolio, value $305,954.

    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 631,022 shares
    Change vs previous 13F -1,098,836 shares

    0.02% of the 13F portfolio, value $553,911.

    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 1,729,858 shares
    Change vs previous 13F +64,478 shares

    0.12% of the 13F portfolio, value $3,546,209.

    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 1,665,380 shares
    Change vs previous 13F not available

    0.07% of the 13F portfolio, value $1,682,034.

    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).