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Disclosery

GROUP ONE TRADING LLC: MTN position timeline

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

GROUP ONE TRADING LLC held 20,674 MTN 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 20,674 shares
    Change vs previous 13F -1,159 shares

    0.08% of the 13F portfolio, value $2,814,765.

    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 21,833 shares
    Change vs previous 13F +18,415 shares

    0.09% of the 13F portfolio, value $2,801,611.

    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 3,418 shares
    Change vs previous 13F -5,275 shares

    0.01% of the 13F portfolio, value $453,910.

    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 8,693 shares
    Change vs previous 13F +7,469 shares

    0.04% of the 13F portfolio, value $1,300,212.

    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 1,224 shares
    Change vs previous 13F +841 shares

    0.01% of the 13F portfolio, value $192,327.

    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 383 shares
    Change vs previous 13F -318 shares

    <0.01% of the 13F portfolio, value $61,288.

    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 701 shares
    Change vs previous 13F not available

    <0.01% of the 13F portfolio, value $131,402.

    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).