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Disclosery

GROUP ONE TRADING LLC: SG position timeline

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

GROUP ONE TRADING LLC held 480,660 SG 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 480,660 shares
    Change vs previous 13F +156,513 shares

    0.12% of the 13F portfolio, value $4,234,615.

    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 324,147 shares
    Change vs previous 13F -462,693 shares

    0.06% of the 13F portfolio, value $1,682,323.

    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 786,840 shares
    Change vs previous 13F +128,624 shares

    0.16% of the 13F portfolio, value $5,319,038.

    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 658,216 shares
    Change vs previous 13F +479,885 shares

    0.16% of the 13F portfolio, value $5,252,564.

    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 178,331 shares
    Change vs previous 13F +131,870 shares

    0.09% of the 13F portfolio, value $2,653,565.

    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 46,461 shares
    Change vs previous 13F -139,520 shares

    0.05% of the 13F portfolio, value $1,162,454.

    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 185,981 shares
    Change vs previous 13F +52,847 shares

    0.2% of the 13F portfolio, value $5,962,551.

    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 133,134 shares
    Change vs previous 13F not available

    0.19% of the 13F portfolio, value $4,719,600.

    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).