Quantum-Si - 5 Year Stock Price History | QSI
Historical daily share price chart and data for Quantum-Si since 2020 adjusted for splits and dividends. The latest closing stock price for Quantum-Si as of November 07, 2025 is 1.57.
- The all-time high Quantum-Si stock closing price was 22.41 on February 18, 2021.
- The Quantum-Si 52-week high stock price is 5.77, which is 267.5% above the current share price.
- The Quantum-Si 52-week low stock price is 0.61, which is 61.1% below the current share price.
- The average Quantum-Si stock price for the last 52 weeks is 1.63.
| Quantum-Si Historical Annual Stock Price Data | ||||||
|---|---|---|---|---|---|---|
| Year | Average Stock Price | Year Open | Year High | Year Low | Year Close | Annual % Change |
| 2025 | 1.6618 | 4.2600 | 4.2900 | 1.0000 | 1.5750 | -41.67% |
| 2024 | 1.3679 | 2.0300 | 3.6000 | 0.6330 | 2.7000 | 34.33% |
| 2023 | 1.8685 | 1.8400 | 3.8900 | 1.1450 | 2.0100 | 9.84% |
| 2022 | 3.6115 | 8.2200 | 8.2200 | 1.8200 | 1.8300 | -76.75% |
| 2021 | 9.9520 | 10.4900 | 22.4100 | 5.6500 | 7.8700 | -22.46% |
| Sector | Industry | Market Cap | Revenue |
|---|---|---|---|
| Computer and Technology | Semiconductors | $0.334B | $0.003B |
| Quantum-Si Incorporated is a company pioneering next-generation semiconductor chip-based proteomics. Quantum-Si Incorporated, formerly known as HighCape Capital Acquisition Corp., is based in NEW YORK. | |||
| Stock Name | Country | Market Cap | PE Ratio |
|---|---|---|---|
| Broadcom (AVGO) | United States | $1679.226B | 67.86 |
| Lam Research (LRCX) | United States | $203.716B | 35.72 |
| Applied Materials (AMAT) | United States | $186.040B | 24.40 |
| QUALCOMM (QCOM) | United States | $185.497B | 17.22 |
| ARM Holdings (ARM) | United Kingdom | $167.193B | 163.14 |
| Marvell Technology (MRVL) | United States | $80.460B | 55.22 |
| Infineon Technologies AG (IFNNY) | Germany | $51.022B | 23.40 |
| ASE Technology Holding (ASX) | Taiwan | $33.929B | 30.74 |
| Credo Technology (CRDO) | Cayman Islands | $28.153B | 242.90 |
| GlobalFoundries (GFS) | United States | $19.031B | 25.88 |
| United Microelectronics (UMC) | Taiwan | $18.364B | 14.33 |
| Rambus (RMBS) | United States | $11.464B | 54.33 |
| Tower Semiconductor (TSEM) | Israel | $9.348B | 48.20 |
| Nova (NVMI) | Israel | $9.232B | 39.95 |
| Amkor Technology (AMKR) | United States | $8.689B | 28.12 |
| Lattice Semiconductor (LSCC) | United States | $8.551B | 271.78 |
| Rohm (ROHCY) | Japan | $6.178B | 0.00 |
| Cirrus Logic (CRUS) | United States | $6.053B | 16.54 |
| Impinj (PI) | United States | $5.090B | 433.49 |
| Allegro MicroSystems (ALGM) | United States | $5.037B | 194.36 |
| FormFactor (FORM) | United States | $4.203B | 84.72 |
| Ambarella (AMBA) | United States | $3.868B | 0.00 |
| Synaptics (SYNA) | United States | $2.679B | 45.44 |
| Diodes (DIOD) | United States | $2.406B | 45.04 |
| Navitas Semiconductor (NVTS) | United States | $1.883B | 0.00 |
| Soitec SA (SLOIF) | France | $1.822B | 0.00 |
| Applied Optoelectronics (AAOI) | United States | $1.815B | 0.00 |
| NLight (LASR) | United States | $1.487B | 0.00 |
| Himax Technologies (HIMX) | Taiwan | $1.383B | 21.96 |
| Ams-OSRAM AG (AMSSY) | Austria | $1.216B | 121.80 |
| SEALSQ (LAES) | Switzerland | $1.066B | 0.00 |
| Indie Semiconductor (INDI) | United States | $1.007B | 0.00 |
| SkyWater Technology (SKYT) | United States | $0.901B | 0.00 |
| Ceva (CEVA) | United States | $0.639B | 0.00 |
| Alpha And Omega Semiconductor (AOSL) | United States | $0.590B | 0.00 |
| Ambiq Micro (AMBQ) | United States | $0.533B | 0.00 |
| Ichor Holdings (ICHR) | United States | $0.519B | 0.00 |
| POET Technologies (POET) | Canada | $0.483B | 0.00 |
| AXT Inc (AXTI) | United States | $0.409B | 0.00 |
| NVE (NVEC) | United States | $0.314B | 22.81 |
| Aeluma (ALMU) | United States | $0.259B | 0.00 |
| Valens Semiconductor (VLN) | Israel | $0.166B | 0.00 |
| Silvaco (SVCO) | United States | $0.150B | 0.00 |
| Nano Labs (NA) | China | $0.122B | 0.00 |
| QuickLogic (QUIK) | United States | $0.117B | 0.00 |
| Coda Octopus Group (CODA) | United States | $0.099B | 29.47 |
| Sequans Communications S.A (SQNS) | France | $0.084B | 0.00 |
| Atomera (ATOM) | United States | $0.082B | 0.00 |
| GCT Semiconductor Holding (GCTS) | United States | $0.078B | 0.00 |
| Sono-Tek (SOTK) | United States | $0.072B | 45.80 |
| IQE (IQEPF) | United Kingdom | $0.071B | 0.00 |
| Mobix Labs (MOBX) | United States | $0.040B | 0.00 |
| Pixelworks (PXLW) | United States | $0.038B | 0.00 |
| SemiLEDS (LEDS) | Taiwan | $0.024B | 0.00 |
| SmartKem (SMTK) | United Kingdom | $0.008B | 0.00 |