Quantum-Si Incorporated (QSI)
QSI trades on Nasdaq in Industrials, Industrial Machinery/Components. Numbers below come from the Nasdaq screener and SEC filings, each with its source.
Price · October 14, 2026
$1.41
+3.68% on the day
Market cap
$308.6M
Small cap
Revenue · 2025
$2.4M
-20.3% on 2024
Net income · 2025
-$101.3M
-4160.1% net margin
Price, change, market cap, sector and industry: Nasdaq stock screener, as of October 14, 2026. Revenue: SEC XBRL frames, calendar 2025.
Profile
| Field | Value |
|---|---|
| Ticker | QSI on Nasdaq |
| Sector | Industrials |
| Industry | Industrial Machinery/Components |
| Country | United States |
| IPO year | 2020 |
| SEC CIK | 0001816431 |
| SEC industry code | Measuring & Controlling Devices, NEC |
| Incorporated in | DE |
Financials · 2025
| Line | Value |
|---|---|
| Revenue | $2.4M |
| Net income | -$101.3M |
| Operating income | -$116.1M |
| Net margin | -4160.1% |
| Operating margin | -4766.0% |
| Revenue growth | -20.3% |
| Cash | $21.6M |
| Total assets | $245.6M |
| P/E (computed) | Net income was not positive |
| P/S (computed) | 126.7× |
Key SEC documents
| Document | Form | Filed |
|---|---|---|
| Latest prospectus or offering document | 424B3 | 2025-10-29 |
| Latest annual report | 10-K | 2026-03-03 |
| Latest quarterly / interim | 10-Q | 2026-08-13 |
| Latest current report | 8-K | 2026-10-08 |
| Latest proxy | DEFA14A | 2026-04-01 |
Source: SEC EDGAR submissions feed, 470 recent filings. All filings on EDGAR.
Price moves
| Window | Return |
|---|---|
| 1 week | +8.2% |
| 1 month | +92.4% |
| 3 months | +69.1% |
| Year to date | +25.9% |
| 1 year | -33.4% |
| From 52-week high | -47.3% |
Source: Yahoo Finance daily closes, last bar 2026-10-14. Computed by Sophia Capital from daily closes; cap, sector and tier from the Nasdaq screener.
Peers in Industrial Machinery/Components
| Ticker | Company | Price | Day | Market cap |
|---|---|---|---|---|
| MPTI | M-tron Industries Inc. | $68.97 | -1.47% | $299.8M |
| SERV | Serve Robotics Inc. | $3.79 | -3.32% | $328.2M |
| RR | Richtech Robotics Inc. | $1.47 | -2.65% | $330.9M |
| CUB | Lionheart Holdings | $10.91 | 0.00% | $346.6M |
| ERII | Energy Recovery Inc. | $6.85 | -0.22% | $349.7M |
| ASYS | Amtech Systems Inc. | $15.40 | -3.81% | $269.6M |
| AIRJ | AirJoule Technologies Corporation | $3.56 | +1.43% | $267.7M |
| NPWR | NET Power Inc. | $1.19 | -3.25% | $267.6M |
The full dossier has every filing, three years of financials, private raises and the people who signed them.
Open the full dossier