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Why Is Quantum-Si Stock Gaining Tuesday?

Sep 29, 2026, 6:24 PMVandana Singh

Quantum-Si (QSI) stock jumped over 24% after presenting impressive interim Proteus platform data at the HUPO 2026 conference.

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Source: benzinga
Observed: Sep 29, 2026, 6:24 PM
Checked: Sep 29, 2026, 6:24 PM
Cadence: Captured once, then retained as an archive reference
Status: fresh

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BenzingaSep 29, 2026, 4:26 PMBenzinga Newsdesk
Quantum-Si shares are trading higher after the company announced interim development results comparing its next-generation Proteus platform with its commercially available Platinum Pro instrument. Also, HC Wainwright & Co. reiterated its Buy rating and maintained a $4 price target on the stock.
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