GROUP ONE TRADING LLC: PCT position timeline

GROUP ONE TRADING LLC held 0 PCT shares at 2026-03-31 per its 13F-HR filed 2026-05-13.

the latest 13F is the newest step

1. period ended2026-03-31

   13F 0 shares

   Change vs previous 13F -114,246 shares

   13F-HR 0000932540-26-000005 filed by GROUP ONE TRADING LLC
   Filed 2026-05-13 (acceptance time not in the bulk data set), ingested 2026-10-06 09:58:43 UTC

   Acceptance time not in the bulk data set (spec §4.2).

   Exited: the 13F for this period no longer lists the position.

2. period ended2025-12-31

   13F 114,246 shares

   Change vs previous 13F -13,372 shares

   0.03% of the 13F portfolio, value $981,373.

   13F-HR 0000932540-26-000002 filed by GROUP ONE TRADING LLC
   Filed 2026-02-12 (acceptance time not in the bulk data set), ingested 2026-10-07 03:01:36 UTC

   Acceptance time not in the bulk data set (spec §4.2).

3. period ended2025-09-30

   13F 127,618 shares

   Change vs previous 13F -72,597 shares

   0.05% of the 13F portfolio, value $1,678,177.

   13F-HR 0000932540-25-000040 filed by GROUP ONE TRADING LLC
   Filed 2025-11-12 (acceptance time not in the bulk data set), ingested 2026-10-07 03:02:25 UTC

   Acceptance time not in the bulk data set (spec §4.2).

4. period ended2025-06-30

   13F 200,215 shares

   Change vs previous 13F -293,733 shares

   0.09% of the 13F portfolio, value $2,742,946.

   13F-HR 0000932540-25-000034 filed by GROUP ONE TRADING LLC
   Filed 2025-08-14 (acceptance time not in the bulk data set), ingested 2026-10-07 18:23:11 UTC

   Acceptance time not in the bulk data set (spec §4.2).

5. period ended2025-03-31

   13F 493,948 shares

   Change vs previous 13F +361,146 shares

   0.14% of the 13F portfolio, value $3,418,120.

   13F-HR 0000932540-25-000027 filed by GROUP ONE TRADING LLC
   Filed 2025-05-14 (acceptance time not in the bulk data set), ingested 2026-10-07 18:25:06 UTC

   Acceptance time not in the bulk data set (spec §4.2).

6. period ended2024-12-31

   13F/A 132,802 shares

   Change vs previous 13F +132,802 shares

   0.05% of the 13F portfolio, value $1,361,220.

   13F-HR/A 0000932540-25-000028 filed by GROUP ONE TRADING LLC
   Filed 2025-05-14 (acceptance time not in the bulk data set), ingested 2026-10-07 18:25:06 UTC

   Acceptance time not in the bulk data set (spec §4.2).

7. period ended2024-09-30

   13F 0 shares

   Change vs previous 13F not available

   13F-HR 0000932540-24-000015 filed by GROUP ONE TRADING LLC
   Filed 2024-11-14 (acceptance time not in the bulk data set), ingested 2026-10-07 18:26:56 UTC

   Acceptance time not in the bulk data set (spec §4.2).

   Exited: the 13F for this period no longer lists the position.