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Disclosery

GROUP ONE TRADING LLC: VST position timeline

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

GROUP ONE TRADING LLC held 26,231 VST 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 26,231 shares
    Change vs previous 13F -107,714 shares

    0.12% of the 13F portfolio, value $4,161,024.

    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 133,945 shares
    Change vs previous 13F +129,356 shares

    0.67% of the 13F portfolio, value $20,135,952.

    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 4,589 shares
    Change vs previous 13F -6,325 shares

    0.02% of the 13F portfolio, value $740,343.

    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 10,914 shares
    Change vs previous 13F +5,354 shares

    0.06% of the 13F portfolio, value $2,138,271.

    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 5,560 shares
    Change vs previous 13F -9,378 shares

    0.04% of the 13F portfolio, value $1,077,584.

    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 14,938 shares
    Change vs previous 13F -90,378 shares

    0.07% of the 13F portfolio, value $1,754,319.

    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 105,316 shares
    Change vs previous 13F not available

    0.49% of the 13F portfolio, value $14,519,917.

    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).