Quantum-Si Incorporated Common Stock

As of the most recent data (June 2026), QSI shows a common stock of $22K. That compares with $18K in the prior-year period — up 22.2% year over year. Scroll down for historical charts and peer comparison views.

Compared with the year-ago period, QSI's common stock is now $22K (was $18K) — a 22.2% year-over-year increase. Pairing that YoY change with peer averages gives a clearer picture of whether Quantum-Si Incorporated is outperforming or lagging.

Tracking QSI's common stock over time shows whether Quantum-Si Incorporated is scaling, shrinking, or reshaping that part of the business. The current reading is $22K That compares with $18K in the prior-year period — up 22.2% year over year. Multi-quarter patterns matter more than any single print, which is why this page emphasizes history and peer comparison charts.

Besides this common stock page, Stockcircle has Quantum-Si Incorporated's full stock overview, other financial metrics, insider and congress trade tabs, and tools to follow the stock. Together they help you connect common stock (currently $22K) with ownership activity and broader fundamentals.

Quantum-Si Incorporated's common stock is $22K; compare it with other Healthcare names on the peer chart. Typical ranges vary by sub-industry, so always sanity-check against the closest competitors, not just the whole sector bucket.