Momentus is trading 8.6% up at $4.47, apparently amid broader risk-on sentiment as investors reassess Federal Reserve policy uncertainty.
- The S&P 500 is up 0.90%, while the Nasdaq Composite is up 1.28%.
- No new company-specific announcement was identified for September 17, 2026.
- Momentus’s September 11 Vigoride 8 design-review milestone does not directly explain today’s move.