🟢 ASP Isotopes is trading 5% up in after-hours trading with no clear catalyst identified

ASP Isotopes is trading 5.08% higher at $3.10 after hours, with no clear company-specific catalyst identified for September 24, 2026.

• Investor-relations pages show the latest prominent release was the September 8 Capital Markets Day and operational update, not a new after-hours catalyst.
• Broader markets were modestly weaker; bond yields and inflation concerns remained a potential backdrop, but available evidence does not establish a direct cause for the gain.