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Disclosery

GROUP ONE TRADING LLC: NN position timeline

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

GROUP ONE TRADING LLC held 1,029,972 NN 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 1,029,972 shares
    Change vs previous 13F -182 shares

    0.53% of the 13F portfolio, value $18,364,401.

    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 1,030,154 shares
    Change vs previous 13F -1,106,539 shares

    0.55% of the 13F portfolio, value $16,503,067.

    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 2,136,693 shares
    Change vs previous 13F -165,509 shares

    1.05% of the 13F portfolio, value $35,554,572.

    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 2,302,202 shares
    Change vs previous 13F +123,767 shares

    0.98% of the 13F portfolio, value $32,921,489.

    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 2,178,435 shares
    Change vs previous 13F +268,274 shares

    1.09% of the 13F portfolio, value $33,112,212.

    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 1,910,161 shares
    Change vs previous 13F +171,372 shares

    0.97% of the 13F portfolio, value $23,246,659.

    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 1,738,789 shares
    Change vs previous 13F +787,412 shares

    0.92% of the 13F portfolio, value $27,055,557.

    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 951,377 shares
    Change vs previous 13F not available

    0.28% of the 13F portfolio, value $7,125,814.

    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).