Lead · largest opening gap
Top gappers on : BRAI, AIOK and NEXR
6 of the top 10 had an SEC filing or a trading halt between the previous close and this session’s close.
Rank 1BRAIBraiin Ltd
- Opening gap
- +52.36%
- Day
- +56.13%
- HOD (ET)
- 5.2019:58 ET
- Est. turnover
- $193.6M
- Gap-ups (≥1M shares)
- 1,031
On Tuesday, October 27, 2026, 1,031 US-listed common stocks and common-stock ADRs opened above their previous close with at least 1M shares of daily volume. The largest opening gap was BRAI at +52.36%.
BRAI (Braiin Ltd) opened at 3.23, +52.36% from the previous close of 2.12. Its high of day was 5.20 at 19:58 ET. It closed at 3.31, +56.13% on the day, on an estimated $193.6M of turnover. No SEC filing or news found by the close.
POM (POMDOCTOR Ltd) opened at 1.32, +16.81% from the previous close of 1.13. Its high of day was 1.48 at 07:23 ET. It closed at 1.39, +23.01% on the day, on an estimated $15.7M of turnover.
KNSA (Kiniksa Pharmaceuticals International, plc) opened at 85.00, +16.47% from the previous close of 72.98. Its high of day was 90.80 at 13:34 ET. It closed at 89.20, +22.23% on the day, on an estimated $203.9M of turnover. By the close the record held 8-K at 07:32 ET: Earnings — Kiniksa Pharmaceuticals Reports Third Quarter 2026 Financial Results and Recent Portfolio Execution.
Pre-market: 4 of 10 highs of day.
Across the small caps the map tracks, 1,890 advanced and 1,028 declined, with an estimated $20.9B in dollar volume.
Behind it in the ranking: NEXR +42.60% (+21.77% on the day); POM +16.81% (+23.01% on the day); IMSR +14.46% (+11.90% on the day); GUNN +12.27% (-3.84% on the day).
Behind it in the ranking: NEXR +42.60% (+21.77% on the day); IMSR +14.46% (+11.90% on the day); GUNN +12.27% (-3.84% on the day).
6 of the top 10 had an SEC filing or a trading halt between the previous close and this session’s close.