
QSI Valuation
Quantum-Si Inc
- Overview
- Forecast
- Valuation
- Earnings
QSI Relative Valuation
QSI's fair value is calculated using relative valuation, based on historical P/E and P/S ranges and their premiums/discounts relative to a competitor average, adjusted by weights. If the market price exceeds this fair value range, QSI is overvalued; if below, it's undervalued.
Historical Valuation
Quantum-Si Inc (QSI) is now in the Overvalued zone, suggesting that its current forward PS ratio of 74.67 is considered Overvalued compared with the five-year average of -4.79. The fair price of Quantum-Si Inc (QSI) is between 0.38 to 1.15 according to relative valuation methord. Compared to the current price of 1.53 USD , Quantum-Si Inc is Overvalued By 33.05%.
Relative Value
Fair Zone
0.38-1.15
Current Price:1.53
33.05%
Overvalued
-2.22
PE
1Y
3Y
5Y
Trailing
Forward
-0.71
EV/EBITDA
Quantum-Si Inc. (QSI) has a current EV/EBITDA of -0.71. The 5-year average EV/EBITDA is -1.59. The thresholds are as follows: Strongly Undervalued below -9.53, Undervalued between -9.53 and -5.56, Fairly Valued between 2.38 and -5.56, Overvalued between 2.38 and 6.35, and Strongly Overvalued above 6.35. The current Forward EV/EBITDA of -0.71 falls within the Historic Trend Line -Fairly Valued range.
-0.59
EV/EBIT
Quantum-Si Inc. (QSI) has a current EV/EBIT of -0.59. The 5-year average EV/EBIT is -1.24. The thresholds are as follows: Strongly Undervalued below -7.39, Undervalued between -7.39 and -4.31, Fairly Valued between 1.83 and -4.31, Overvalued between 1.83 and 4.90, and Strongly Overvalued above 4.90. The current Forward EV/EBIT of -0.59 falls within the Historic Trend Line -Fairly Valued range.
74.67
PS
Quantum-Si Inc. (QSI) has a current PS of 74.67. The 5-year average PS is 73.39. The thresholds are as follows: Strongly Undervalued below -116.13, Undervalued between -116.13 and -21.37, Fairly Valued between 168.15 and -21.37, Overvalued between 168.15 and 262.91, and Strongly Overvalued above 262.91. The current Forward PS of 74.67 falls within the Historic Trend Line -Fairly Valued range.
-3.10
P/OCF
Quantum-Si Inc. (QSI) has a current P/OCF of -3.10. The 5-year average P/OCF is -4.27. The thresholds are as follows: Strongly Undervalued below -11.89, Undervalued between -11.89 and -8.08, Fairly Valued between -0.46 and -8.08, Overvalued between -0.46 and 3.35, and Strongly Overvalued above 3.35. The current Forward P/OCF of -3.10 falls within the Historic Trend Line -Fairly Valued range.
-2.75
P/FCF
Quantum-Si Inc. (QSI) has a current P/FCF of -2.75. The 5-year average P/FCF is -3.90. The thresholds are as follows: Strongly Undervalued below -11.20, Undervalued between -11.20 and -7.55, Fairly Valued between -0.25 and -7.55, Overvalued between -0.25 and 3.40, and Strongly Overvalued above 3.40. The current Forward P/FCF of -2.75 falls within the Historic Trend Line -Fairly Valued range.
Quantum-Si Inc (QSI) has a current Price-to-Book (P/B) ratio of 1.05. Compared to its 3-year average P/B ratio of 0.91 , the current P/B ratio is approximately 15.81% higher. Relative to its 5-year average P/B ratio of 0.95, the current P/B ratio is about 10.92% higher. Quantum-Si Inc (QSI) has a Forward Free Cash Flow (FCF) yield of approximately -35.80%. Compared to its 3-year average FCF yield of -41.48%, the current FCF yield is approximately -13.68% lower. Relative to its 5-year average FCF yield of -31.08% , the current FCF yield is about 15.21% lower.
1.05
P/B
Median3y
0.91
Median5y
0.95
-35.80
FCF Yield
Median3y
-41.48
Median5y
-31.08
Competitors Valuation Multiple
The average P/S ratio for QSI's competitors is 16.22, providing a benchmark for relative valuation. Quantum-Si Inc Corp (QSI) exhibits a P/S ratio of 74.67, which is 360.38% above the industry average. Given its robust revenue growth of -4.98%, this premium appears unsustainable.
P/S
P/E
EV/EBITDA
EV/EBIT
P/S
Performance Decomposition
1Y
3Y
5Y
Market capitalization of QSI increased by 43.18% over the past 1 year. The primary factor behind the change was an decrease in Margin Expansion from -3.71K to -4.88K.
The secondary factor is the P/E Change, contributed 16.78%to the performance.
Overall, the performance of QSI in the past 1 year is driven by Margin Expansion. Which is more sustainable.
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FAQ

Is Quantum-Si Inc (QSI) currently overvalued or undervalued?
Quantum-Si Inc (QSI) is now in the Overvalued zone, suggesting that its current forward PS ratio of 74.67 is considered Overvalued compared with the five-year average of -4.79. The fair price of Quantum-Si Inc (QSI) is between 0.38 to 1.15 according to relative valuation methord. Compared to the current price of 1.53 USD , Quantum-Si Inc is Overvalued By 33.05% .

What is Quantum-Si Inc (QSI) fair value?

How does QSI's valuation metrics compare to the industry average?

What is the current P/B ratio for Quantum-Si Inc (QSI) as of Sep 18 2025?

What is the current FCF Yield for Quantum-Si Inc (QSI) as of Sep 18 2025?

What is the current Forward P/E ratio for Quantum-Si Inc (QSI) as of Sep 18 2025?
