Skip to content
Disclosery

GROUP ONE TRADING LLC: GIS position timeline

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

GROUP ONE TRADING LLC held 136,138 GIS 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 136,138 shares
    Change vs previous 13F +83,518 shares

    0.14% of the 13F portfolio, value $4,737,602.

    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 52,620 shares
    Change vs previous 13F +18,660 shares

    0.06% of the 13F portfolio, value $1,958,516.

    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 33,960 shares
    Change vs previous 13F -4,763 shares

    0.05% of the 13F portfolio, value $1,579,140.

    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 38,723 shares
    Change vs previous 13F +15,642 shares

    0.06% of the 13F portfolio, value $1,952,414.

    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 23,081 shares
    Change vs previous 13F -29,515 shares

    0.04% of the 13F portfolio, value $1,195,827.

    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 52,596 shares
    Change vs previous 13F not available

    0.13% of the 13F portfolio, value $3,144,715.

    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).