MST is trading 2.3% down at $14.81, with no reliable company-specific announcement, earnings release, or late-breaking event found to explain the after-hours decline.

  • It closed at $15.16 on September 18, 2026.
  • MST is the Defiance Leveraged Long + Income MSTR ETF; broader crypto-linked trading was generally stronger during the regular session.
  • The move appears to reflect after-hours profit-taking or ETF-specific trading activity, but the catalyst remains unconfirmed.