QuantumSi is trading at $0.74 (-6.42%) after investors reacted to its August 13 earnings and Proteus delay.
- Proteus commercial launch moved from late 2026 to Q2 2027 for additional design and manufacturing-readiness work
- Q2 revenue was $344,000, down from $591,000 year over year
- The launch delay overshadowed the revenue beat, pressuring shares