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Disclosery

GROUP ONE TRADING LLC: DAL position timeline

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

GROUP ONE TRADING LLC held 24,716 DAL 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 24,716 shares
    Change vs previous 13F -242,999 shares

    0.07% of the 13F portfolio, value $2,314,901.

    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 267,715 shares
    Change vs previous 13F -67,922 shares

    0.59% of the 13F portfolio, value $17,797,693.

    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 335,637 shares
    Change vs previous 13F +29,178 shares

    0.69% of the 13F portfolio, value $23,293,208.

    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 306,459 shares
    Change vs previous 13F +151,796 shares

    0.52% of the 13F portfolio, value $17,391,548.

    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 154,663 shares
    Change vs previous 13F +87,871 shares

    0.25% of the 13F portfolio, value $7,606,326.

    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 66,792 shares
    Change vs previous 13F -26,975 shares

    0.12% of the 13F portfolio, value $2,912,131.

    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 93,767 shares
    Change vs previous 13F +34,792 shares

    0.19% of the 13F portfolio, value $5,672,904.

    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 58,975 shares
    Change vs previous 13F not available

    0.12% of the 13F portfolio, value $2,995,340.

    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).