Grupo Simec (SIM) shares slumped 58% pre-bell Wednesday, reversing from Tuesday's rally.
EyePoint Pharmaceuticals (EYPT) shares retreated 26% following a 6.3% increase in the previous session.
FMC Corporation (FMC) shares fell 23%, a day after the company issued guidance for Q1 and 2025 that trailed analysts' projections.