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Disclosery

GROUP ONE TRADING LLC: SIL position timeline

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

GROUP ONE TRADING LLC held 176,160 SIL 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 176,160 shares
    Change vs previous 13F -24,255 shares

    0.39% of the 13F portfolio, value $13,645,354.

    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 200,415 shares
    Change vs previous 13F -101,387 shares

    0.6% of the 13F portfolio, value $18,053,383.

    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 301,802 shares
    Change vs previous 13F +196,492 shares

    0.75% of the 13F portfolio, value $25,206,503.

    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 105,310 shares
    Change vs previous 13F -45,257 shares

    0.23% of the 13F portfolio, value $7,543,355.

    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 150,567 shares
    Change vs previous 13F +34,093 shares

    0.24% of the 13F portfolio, value $7,248,295.

    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 116,474 shares
    Change vs previous 13F +76,637 shares

    0.19% of the 13F portfolio, value $4,594,899.

    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 39,837 shares
    Change vs previous 13F not available

    0.04% of the 13F portfolio, value $1,265,621.

    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).