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Quantum-Si incorporated

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Quantum-Si incorporated at a glance

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Quantum-Si incorporated (QSI) is a Healthcare company in the Medical - Devices industry, headquartered in Branford, CT, with about 145 employees. Its shares trade on NASDAQ, and its IPO date is November 13, 2020. With a market capitalization of $278.5 million, QSI is a small-cap stock.

It trades an average of 5.1 million shares a day.

In its latest reported quarter (results released August 13, 2026), Quantum-Si incorporated posted revenue of $344,000 and earnings of -$0.11 per share, against estimates of $302,000 and -$0.11.

Figures as of October 26, 2026, from market data providers. Descriptive only, not financial advice.

QSI: Frequently asked questions

As of October 26, 2026, Quantum-Si incorporated has a market capitalization of $278.5 million, making it a small-cap company in the Healthcare sector.

Figures update throughout the day from market data providers. Nothing on this page is financial advice.