GROUP ONE TRADING LLC: ZIM position timeline

GROUP ONE TRADING LLC held 512,427 ZIM 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 512,427 shares

   Change vs previous 13F +105,955 shares

   0.38% of the 13F portfolio, value $13,323,102.

   13F-HR 0000932540-26-000011 filed by GROUP ONE TRADING LLC
   Filed 2026-08-14 (acceptance time not in the bulk data set), ingested 2026-10-06 09:57:27 UTC

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

2. period ended2026-03-31

   13F 406,472 shares

   Change vs previous 13F -333,394 shares

   0.35% of the 13F portfolio, value $10,710,537.

   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).

3. period ended2025-12-31

   13F 739,866 shares

   Change vs previous 13F +153,886 shares

   0.47% of the 13F portfolio, value $15,707,355.

   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).

4. period ended2025-09-30

   13F 585,980 shares

   Change vs previous 13F -553,262 shares

   0.24% of the 13F portfolio, value $7,940,029.

   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).

5. period ended2025-06-30

   13F 1,139,242 shares

   Change vs previous 13F +348,244 shares

   0.6% of the 13F portfolio, value $18,330,404.

   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).

6. period ended2025-03-31

   13F 790,998 shares

   Change vs previous 13F +790,998 shares

   0.48% of the 13F portfolio, value $11,540,661.

   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).

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.