On October 2, 2026, QuantumSi is trading 6.64% up at $1.52, with no clear company-specific catalyst identified.
- The company’s latest listed announcement was September 28, reporting interim Proteus data; its official news page shows no October 2 press release.
- Broader markets were higher after a weaker-than-expected U.S. jobs report, which may have supported risk appetite, but available evidence does not establish it as the direct reason for QuantumSi’s gain.