No. 38
FESCI3.69-25.78% vs prior day

Market breadthUp1,165Down1,742Flat82Gap-ups (≥1M shares) 371

No. 38Closed 16:00 ETRanking stored Inside: Top movers A2 Why they moved A3 HOD timing A4 Market map & FESCI A5 Articles A6

Sections of this recap

Lead · largest opening gap

Top gappers on : MYND, BOLT and XXII

4 of the top 10 had an SEC filing or a trading halt between the previous close and this session’s close.

Rank 1MYNDMynd.ai, Inc.

Opening gap
+78.13%
Day
+47.42%
HOD (ET)
0.393518:09 ET
Est. turnover
$16.3M
Gap-ups (≥1M shares)
371

On Friday, October 23, 2026, 371 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 MYND at +78.13%.

MYND (Mynd.ai, Inc.) opened at 0.29, +78.13% from the previous close of 0.1628. Its high of day was 0.3935 at 18:09 ET. It closed at 0.24, +47.42% on the day, on an estimated $16.3M of turnover. No SEC filing or news found by the close.

AIOK (AI OKTO Corp.) opened at 5.55, +30.59% from the previous close of 4.25. Its high of day was 15.59 at 12:06 ET. It closed at 12.02, +182.82% on the day, on an estimated $475.3M of turnover. By the close the record held 6-K at 09:29 ET: Contract — AI OKTO Announces the Sale of the LPG Carrier Dream Arrax. By the close the record held 6-K at 09:29 ET: Other — AI OKTO Corp. Declares Special Dividend of $3.50 Per Share.

AIXI (Xiao-I Corp) opened at 3.19, +28.63% from the previous close of 2.48. Its high of day was 3.64 at 08:15 ET. It closed at 2.96, +19.35% on the day, on an estimated $52.9M of turnover.

Pre-market: 4 of 10 highs of day.

Across the small caps the map tracks, 1,165 advanced and 1,742 declined, with an estimated $17.2B in dollar volume.

Behind it in the ranking: AIXI +28.63% (+19.35% on the day); SAIQ +27.65% (+15.91% on the day); GPUS +20.00% (+34.05% on the day); BKYI +18.61% (+23.72% on the day).

Behind it in the ranking: XXII +50.67% (-8.34% on the day); SAIQ +27.65% (+15.91% on the day); GPUS +20.00% (+34.05% on the day); BKYI +18.61% (+23.72% on the day).

4 of the top 10 had an SEC filing or a trading halt between the previous close and this session’s close.

Continued in Why they moved

Stocks in focus

  1. Rank 2BOLT+66.59%Day +49.64%

    Bolt Biotherapeutics, Inc.8-K

    Private placement. Bolt Biotherapeutics Announces Acquisition of Prana Therapies and $120 Million Concurrent Private Placement to Advance PRA-216 in Multiple…

    SEC filing

  2. Rank 4LUCD+32.47%Day +25.42%

    Lucid Diagnostics Inc.8-K

    Private placement. Lucid Diagnostics Inc. filed an 8-K: Unregistered Sales of Equity, Rights of Security Holders, Charter or Bylaws

    SEC filing

  3. Rank 5YMAT+32.29%Day +6.77%

    J-Star Holding Co., Ltd.6-K

    Form 6-K filed with the SEC

    SEC filing

Learning corner

Lessons and terms behind this session

Market map & FESCI

The Small Cap Market Map for this session loads here.Market Map data as of

Small-cap dollar volume (est.)
$17.2B

Top movers

Held or faded

3 of 10 closed at or above the open

Stored Top Gappers ranking

HOD timing

Pre-market: 4 of 10 highs of day

The Gapper HOD Timeline for this session loads here.

  1. Pre-market04:00–09:304 of 10
  2. First 30 minutes09:30–10:000 of 10
  3. Morning10:00–12:003 of 10
  4. Afternoon12:00–16:002 of 10
  5. After hours16:00–20:001 of 10

Further reading

Retrospective data built after the session from stored records, with links to the original sources. Not real-time, not investment advice and not a recommendation to buy or sell any security.