Quantum-Si PE Ratio 2020-2025 | QSI

Current and historical p/e ratio for Quantum-Si (QSI) from 2020 to 2025. The price to earnings ratio is calculated by taking the latest closing price and dividing it by the most recent earnings per share (EPS) number. The PE ratio is a simple way to assess whether a stock is over or under valued and is the most widely used valuation measure. Quantum-Si PE ratio as of November 11, 2025 is 0.00.

Please refer to the Stock Price Adjustment Guide for more information on our historical prices.

Quantum-Si PE Ratio Historical Data
Date Stock Price TTM Net EPS PE Ratio
2025-11-11 1.58 0.00
2025-06-30 1.96 $-0.68 0.00
2025-03-31 1.20 $-0.68 0.00
2024-12-31 2.70 $-0.71 0.00
2024-09-30 0.88 $-0.64 0.00
2024-06-30 1.05 $-0.63 0.00
2024-03-31 1.97 $-0.65 0.00
2023-12-31 2.01 $-0.68 0.00
2023-09-30 1.66 $-0.76 0.00
2023-06-30 1.79 $-0.82 0.00
2023-03-31 1.76 $-0.87 0.00
2022-12-31 1.83 $-0.95 0.00
2022-09-30 2.75 $-0.92 0.00
2022-06-30 2.32 $-0.82 0.00
2022-03-31 4.68 $-3.64 0.00
2021-12-31 7.87 $-3.39 0.00
2021-09-30 8.34 $-3.18 0.00
Sector Industry Market Cap Revenue
Computer and Technology Semiconductors $0.323B $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.
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