Why they moved: filings and halts

Stored SEC filings and exchange halt records for each leader between the previous close (2026-10-16 16:00 ET) and this session’s close (2026-10-19 16:00 ET). Facts with source links; no interpretation.

Rank 1SLN

Silence Therapeutics plc

Opening gap: +125.63%
Day: +125.58%
HOD (ET): 19.6608:46 ET
Est. turnover: $1.4B

8-KM&ASilence Therapeutics Enters into Agreement to be Acquired by Merck KGaA, Darmstadt, Germany2026-10-19 08:05 ET

Rank 2YMAT

J-Star Holding Co., Ltd.

Opening gap: +94.66%
Day: +39.69%
HOD (ET): 2.6808:42 ET
Est. turnover: $150.1M

No SEC filing or news found by the close.

Rank 3FRGT

Freight Technologies, Inc.

Opening gap: +35.44%
Day: -0.94%
HOD (ET): —
Est. turnover: $18.4M

6-KOtherSimplifies Capital Structure by Retiring Legacy Preferred Shares and Clearing 2023 Warrants2026-10-19 09:00 ET

Rank 4SAFX

XCF Global, Inc.

Opening gap: +34.18%
Day: +11.55%
HOD (ET): 0.256704:18 ET
Est. turnover: $33.1M

SCHEDULE 13D/AOwnership filingXCF Global, Inc. filed a SCHEDULE 13D/A2026-10-16 17:13 ET

Rank 5AAME

ATLANTIC AMERICAN CORP

Opening gap: +33.33%
Day: +38.10%
HOD (ET): 1.8304:13 ET
Est. turnover: $66.1M

No SEC filing or news found by the close.

Rank 6MASK

3 E Network Technology Group Ltd

Opening gap: +30.10%
Day: +15.77%
HOD (ET): 1.2008:16 ET
Est. turnover: $80.0M

No SEC filing or news found by the close.

Rank 7IRON

Disc Medicine, Inc.

Opening gap: +27.90%
Day: +38.86%
HOD (ET): 102.7507:25 ET
Est. turnover: $660.9M

8-KClinical dataDisc Medicine Announces Success on All Primary and Secondary Endpoints in the Pivotal Phase 3 APOLLO2026-10-19 07:08 ET

Rank 8XLAB

Exascale Labs Holdings Inc.

Opening gap: +19.15%
Day: +30.21%
HOD (ET): 3.2905:13 ET
Est. turnover: $205.4M

No SEC filing or news found by the close.

Rank 9CLF

CLEVELAND-CLIFFS INC.

Opening gap: +17.16%
Day: +16.34%
HOD (ET): 14.5809:30 ET
Est. turnover: $1.2B

8-KEarningsCleveland-Cliffs Reports Third-Quarter 2026 Results2026-10-19 06:52 ET

Rank 10FUFU

Bitfufu Inc.

Opening gap: +16.65%
Day: +32.21%
HOD (ET): 1.5709:54 ET
Est. turnover: $69.2M

No SEC filing or news found by the close.

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.