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Disclosery

GROUP ONE TRADING LLC: DBI position timeline

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

GROUP ONE TRADING LLC held 571,363 DBI 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 571,363 shares
    Change vs previous 13F -24,800 shares

    0.1% of the 13F portfolio, value $3,331,046.

    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 596,163 shares
    Change vs previous 13F -64,568 shares

    0.11% of the 13F portfolio, value $3,392,167.

    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 660,731 shares
    Change vs previous 13F +112,691 shares

    0.15% of the 13F portfolio, value $4,909,231.

    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 548,040 shares
    Change vs previous 13F +94,775 shares

    0.06% of the 13F portfolio, value $1,940,062.

    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 453,265 shares
    Change vs previous 13F +432,741 shares

    0.04% of the 13F portfolio, value $1,078,771.

    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 20,524 shares
    Change vs previous 13F -25,757 shares

    <0.01% of the 13F portfolio, value $74,913.

    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 46,281 shares
    Change vs previous 13F +46,281 shares

    0.01% of the 13F portfolio, value $247,141.

    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 0 shares
    Change vs previous 13F not available

    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).

    Exited: the 13F for this period no longer lists the position.