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Disclosery

GROUP ONE TRADING LLC: NET position timeline

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

GROUP ONE TRADING LLC held 40,636 NET 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 40,636 shares
    Change vs previous 13F +1,137 shares

    0.29% of the 13F portfolio, value $9,967,198.

    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 39,499 shares
    Change vs previous 13F -25,537 shares

    0.27% of the 13F portfolio, value $8,150,224.

    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 65,036 shares
    Change vs previous 13F +42,909 shares

    0.38% of the 13F portfolio, value $12,821,847.

    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 22,127 shares
    Change vs previous 13F -42,456 shares

    0.14% of the 13F portfolio, value $4,748,233.

    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 64,583 shares
    Change vs previous 13F +58,776 shares

    0.41% of the 13F portfolio, value $12,647,289.

    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 5,807 shares
    Change vs previous 13F -53,789 shares

    0.03% of the 13F portfolio, value $654,391.

    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 59,596 shares
    Change vs previous 13F +7,723 shares

    0.22% of the 13F portfolio, value $6,417,297.

    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 51,873 shares
    Change vs previous 13F not available

    0.17% of the 13F portfolio, value $4,196,007.

    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).