Helius Medical Technologies (NASDAQ: HSDT) surged 94.3% in pre-market trading on July 21, 2025, reaching $17.29 compared to the prior close of $8.90.
The sharp move follows the announcement of positive results from the PoNS Stroke Registrational Program, supporting a forthcoming FDA submission for a new indication under the Breakthrough Device Designation. Elevated trading volume accompanied the price spike, signaling strong investor interest.