Quantum-Si - 6 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 June 11, 2026 is 0.97.
- 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 3.10, which is 219.6% above the current share price.
- The Quantum-Si 52-week low stock price is 0.69, which is 28.9% below the current share price.
- The average Quantum-Si stock price for the last 52 weeks is 1.31.
| Quantum-Si Historical Annual Stock Price Data | ||||||
|---|---|---|---|---|---|---|
| Year | Average Stock Price | Year Open | Year High | Year Low | Year Close | Annual % Change |
| 2026 | 1.0027 | 1.1600 | 1.3100 | 0.7110 | 0.9730 | -11.55% |
| 2025 | 1.6132 | 4.2600 | 4.2900 | 1.0000 | 1.1000 | -59.26% |
| 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 | $0.160B | $0.002B |
| 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 | $1759.166B | 62.34 |
| Lam Research (LRCX) | United States | $329.251B | 53.81 |
| Applied Materials (AMAT) | United States | $317.039B | 42.41 |
| ARM Holdings (ARM) | United Kingdom | $157.347B | 158.44 |
| QUALCOMM (QCOM) | United States | $136.640B | 12.81 |
| Marvell Technology (MRVL) | United States | $112.359B | 57.11 |
| Infineon Technologies AG (IFNNY) | Germany | $61.677B | 30.99 |
| ASE Technology Holding (ASX) | Taiwan | $55.097B | 42.83 |
| Qnity Electronics (Q) | United States | $27.382B | 0.00 |
| GlobalFoundries (GFS) | United States | $27.226B | 34.46 |
| United Microelectronics (UMC) | Taiwan | $24.468B | 18.04 |
| Tower Semiconductor (TSEM) | Israel | $22.894B | 105.49 |
| Credo Technology (CRDO) | Cayman Islands | $22.058B | 66.44 |
| Entegris (ENTG) | United States | $20.569B | 49.21 |
| Nova (NVMI) | Israel | $15.766B | 61.47 |
| Lattice Semiconductor (LSCC) | United States | $14.522B | 392.96 |
| Amkor Technology (AMKR) | United States | $14.363B | 38.38 |
| Rambus (RMBS) | United States | $11.945B | 54.14 |
| Applied Optoelectronics (AAOI) | United States | $11.325B | 0.00 |
| FormFactor (FORM) | United States | $9.651B | 145.65 |
| Rohm (ROHCY) | Japan | $8.690B | 0.00 |
| Cirrus Logic (CRUS) | United States | $8.161B | 20.78 |
| Allegro MicroSystems (ALGM) | United States | $6.948B | 170.46 |
| Diodes (DIOD) | United States | $3.822B | 68.09 |
| NLight (LASR) | United States | $3.647B | 0.00 |
| AXT Inc (AXTI) | United States | $3.567B | 0.00 |
| Impinj (PI) | United States | $3.070B | 216.04 |
| Synaptics (SYNA) | United States | $2.858B | 45.28 |
| Soitec SA (SLOIF) | France | $2.651B | 0.00 |
| Ambarella (AMBA) | United States | $2.311B | 0.00 |
| Navitas Semiconductor (NVTS) | United States | $2.202B | 0.00 |
| Ichor Holdings (ICHR) | United States | $1.998B | 0.00 |
| Himax Technologies (HIMX) | Taiwan | $1.606B | 35.98 |
| SkyWater Technology (SKYT) | United States | $1.415B | 0.00 |
| Ams-OSRAM AG (AMSSY) | Austria | $1.336B | 19.68 |
| POET Technologies (POET) | Canada | $0.929B | 0.00 |
| Alpha And Omega Semiconductor (AOSL) | United States | $0.773B | 0.00 |
| Indie Semiconductor (INDI) | United States | $0.651B | 0.00 |
| Ambiq Micro (AMBQ) | United States | $0.613B | 0.00 |
| IQE (IQEPF) | United Kingdom | $0.493B | 0.00 |
| SEALSQ (LAES) | Switzerland | $0.405B | 0.00 |
| NVE (NVEC) | United States | $0.371B | 26.24 |
| Silvaco (SVCO) | United States | $0.228B | 0.00 |
| Atomera (ATOM) | United States | $0.197B | 0.00 |
| QuickLogic (QUIK) | United States | $0.197B | 0.00 |
| Aeluma (ALMU) | United States | $0.194B | 0.00 |
| Coda Octopus Group (CODA) | United States | $0.138B | 33.94 |
| Valens Semiconductor (VLN) | Israel | $0.137B | 0.00 |
| GCT Semiconductor Holding (GCTS) | United States | $0.093B | 0.00 |
| Nano Labs (NA) | China | $0.091B | 0.00 |
| Sono-Tek (SOTK) | United States | $0.062B | 39.50 |
| Sequans Communications S.A (SQNS) | France | $0.037B | 0.00 |
| Pixelworks (PXLW) | United States | $0.035B | 0.00 |
| Mobix Labs (MOBX) | United States | $0.025B | 0.00 |
| Semilux (SELX) | Taiwan | $0.016B | 0.00 |
| SemiLEDS (LEDS) | Taiwan | $0.011B | 0.00 |
| SmartKem (SMTK) | United Kingdom | $0.003B | 0.00 |