Skip to content
Disclosery

GROUP ONE TRADING LLC: MSFL position timeline

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

GROUP ONE TRADING LLC held 2,620 MSFL 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 2,620 shares
    Change vs previous 13F +2,452 shares

    <0.01% of the 13F portfolio, value $38,540.

    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 168 shares
    Change vs previous 13F -200 shares

    <0.01% of the 13F portfolio, value $2,560.

    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 368 shares
    Change vs previous 13F +140 shares

    <0.01% of the 13F portfolio, value $10,005.

    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 228 shares
    Change vs previous 13F +194 shares

    <0.01% of the 13F portfolio, value $7,269.

    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 34 shares
    Change vs previous 13F -341 shares

    <0.01% of the 13F portfolio, value $1,024.

    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 375 shares
    Change vs previous 13F -925 shares

    <0.01% of the 13F portfolio, value $6,679.

    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 1,300 shares
    Change vs previous 13F not available

    <0.01% of the 13F portfolio, value $30,212.

    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).