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Top Gappers Calendar — September 2026

21 completed US trading sessions in September 2026 have a daily recap. Select a day to read it.

Largest opening gap of the month: AEMD +493.01% on

September 2026

Each trading day with a recap shows its largest opening gap. Weekends are left out.

  1. Wednesday, September 30, 2026: CNTB+91%1,428 gap-ups
  2. Tuesday, September 29, 2026: BKYI+101%882 gap-ups
  3. Monday, September 28, 2026: SOAR+111%388 gap-ups
  4. Friday, September 25, 2026: INLF+112%1,027 gap-ups
  5. Thursday, September 24, 2026: APUS+205%691 gap-ups
  6. Wednesday, September 23, 2026: BENF+442%558 gap-ups
  7. Tuesday, September 22, 2026: LHSW+193%1,354 gap-ups
  8. Monday, September 21, 2026: GRML+157%1,404 gap-ups
  9. Friday, September 18, 2026: GIPR+239%1,044 gap-ups
  10. Thursday, September 17, 2026: AEMD+493%1,576 gap-ups
  11. Wednesday, September 16, 2026: ZTG+243%1,104 gap-ups
  12. Tuesday, September 15, 2026: VEEA+89%652 gap-ups
  13. Monday, September 14, 2026: NCT+69%805 gap-ups
  14. Friday, September 11, 2026: TNON+54%1,439 gap-ups
  15. Thursday, September 10, 2026: TNON+72%504 gap-ups
  16. Wednesday, September 9, 2026: AGRZ+89%619 gap-ups
  17. Tuesday, September 8, 2026: PDSB+122%698 gap-ups
  18. Monday, September 7, 2026: Labor Day
  19. Friday, September 4, 2026: IMRN+63%349 gap-ups
  20. Thursday, September 3, 2026: MIMI+80%1,378 gap-ups
  21. Wednesday, September 2, 2026: SGLD+176%980 gap-ups
  22. Tuesday, September 1, 2026: BIAF+69%531 gap-ups