Nasdaq
QSI
Quantum-Si Incorporated
- Industrials
- Listed 2020
- 1 day
- −0.2%
- 1 month
- −17.9%
- 1 year
- −44.9%
$0.7550 · Mkt cap $164M
At the 6 Aug 2026 close
Nasdaq
Quantum-Si Incorporated
$0.7550 · Mkt cap $164M
At the 6 Aug 2026 close
Quantum-Si Incorporated trades under the ticker QSI on Nasdaq, in the Industrials sector (Industrial Machinery/Components). It has been listed since 2020. Its market capitalisation is $164M. The last closing price was $0.7550, on 6 Aug 2026. No price-to-earnings ratio is shown, because it did not report positive earnings in its last annual filing. Over the past year the share price is −44.9%, and −17.9% over the past month. Returns are price returns and exclude dividends.
This page exists because QSI is one of the shares What A Share can show you. It is not a recommendation, and its appearance here says nothing about whether the company is worth owning.