Quantum-Si Stock (QSI)

Track Quantum-Si stock through TheStreet Pro's latest coverage, including articles, Daily Diary mentions, TheStreet Pro portfolio activity, contributor watchlist signals, and Pro price levels.

At close
$0.99
▼ -0.07 (-6.88%)
Jun 9, 4:00 PM ET
After-hours
$1.00
▲ +0.01 (+1.30%)
Jun 9, 4:11 PM ET
$1.00$1.50$2.00$2.50$3.00Jun '25Aug '25Oct '25Jan '26Mar '26Jun '26
Market Cap
$230.83M
P/E Ratio
—
1Y Return
-39.08%
EPS (TTM)
-$0.51

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Articles

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Daily Diary Mentions

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