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
$1.53
β–² +0.31 (+25.41%)
Oct 9, 4:00 PM ET
After-hours
$1.54
β–² +0.01 (+0.65%)
Oct 9, 7:59 PM ET
$1.00$1.50$2.00$2.50$3.00Oct '25Dec '25Mar '26May '26Jul '26Oct '26
Market Cap
$267.04M
P/E Ratio
β€”
1Y Return
-31.07%
EPS (TTM)
-$0.46

Read the latest TheStreet Pro articles mentioning Quantum-Si, including market roundups, portfolio updates, trade ideas, and investing analysis.

Articles

0 articles

No articles mentioning QSI yet.

Daily Diary Mentions

1 mention
  • Upside, Downside Movers in the Morning

    Upside – $MEDS +36% (preliminary September pharmacy revenue exceeded $1M, rising more than 66% from July) – $ACN +17% (Q4 beat with $22.2B of bookings and stronger operating margins) – $ABAT +13% (receives federal approval to export up to $100M of recycled black-mass material) – $QSI +13% (no clear fresh catalyst identified; unusually large move …

    Read in context β€Ί