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Disclosery

GROUP ONE TRADING LLC: CRSP position timeline

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

GROUP ONE TRADING LLC held 85,040 CRSP 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 85,040 shares
    Change vs previous 13F -10,961 shares

    0.13% of the 13F portfolio, value $4,638,082.

    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 96,001 shares
    Change vs previous 13F +2,047 shares

    0.15% of the 13F portfolio, value $4,566,768.

    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 93,954 shares
    Change vs previous 13F -3,288 shares

    0.15% of the 13F portfolio, value $4,926,948.

    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 97,242 shares
    Change vs previous 13F +91,530 shares

    0.19% of the 13F portfolio, value $6,302,254.

    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 5,712 shares
    Change vs previous 13F +5,440 shares

    0.01% of the 13F portfolio, value $277,832.

    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 272 shares
    Change vs previous 13F -135,011 shares

    <0.01% of the 13F portfolio, value $9,256.

    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 135,283 shares
    Change vs previous 13F +42,449 shares

    0.18% of the 13F portfolio, value $5,324,739.

    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 92,834 shares
    Change vs previous 13F not available

    0.17% of the 13F portfolio, value $4,361,341.

    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).