Cardio Diagnostics Holdings is trading 6.4% down at $1.90 after closing at $2.03 on September 17, 2026, amid potential dilution concerns tied to its September 18 annual meeting proposal.
- The proposal would authorize up to 5.0 million shares or convertible securities for up to $10 million.
- No confirmed company-specific announcement explaining the pre-market decline was identified.
- Broader markets are higher overnight; volume and activity-level data were unavailable.