Quantum-Si Q3 revenue falls on Proteus transition; lowers expense outlook
QSI•Quantum-Si's third-quarter revenue fell to $212,000 from $552,000 a year earlier as customers anticipated its Proteus platform. The company reaffirmed 2026 revenue guidance of about $1 million and lowered its forecasts for adjusted operating expenses and cash usage to $87 million or less each.
1. Revenue and outlook
Quantum-Si said third-quarter revenue fell to $212,000 from $552,000 a year earlier, citing lower Platinum demand and customer anticipation of its Proteus platform. Net loss narrowed, while operating expenses declined from the prior year. The company reaffirmed its 2026 revenue outlook of approximately $1 million and lowered its 2026 adjusted total operating expense and total cash usage forecasts to $87 million or less each.
