Powell Max (PMAX) shares were 21% lower pre-bell Tuesday, reversing from Monday's increase.
Namib Minerals (NAMM) stock was down 20%, shaving gains from the previous session.
Orion (OEC) shares were 19% lower, a day after the company lowered its full-year 2025 adjusted EBITDA guidance.
ENDRA Life Sciences (NDRA) stock was down 17%, following a 25% increase in the previous session.
PS International (PSIG) shares were 14% lower, paring Monday's rally.