Helius Medical Technologies is trading 12.47% higher at $3.22 in pre-market on September 30, 2026, versus the September 29 close of $2.86; no clear company-specific catalyst has been identified. - The company’s investor-relations release page lists its latest announcement on August 21, 2026, with no September 30 announcement. - Broader indexes are nearly flat in the supplied market context, which does not establish a broad-market explanation for the move.