
BIIB Valuation
Biogen Inc
- Overview
- Forecast
- Valuation
- Earnings
BIIB Relative Valuation
BIIB'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, BIIB is overvalued; if below, it's undervalued.
Historical Valuation
Biogen Inc (BIIB) is now in the Undervalued zone, suggesting that its current forward PE ratio of 9.03 is considered Undervalued compared with the five-year average of 14.07. The fair price of Biogen Inc (BIIB) is between 167.09 to 251.28 according to relative valuation methord. Compared to the current price of 138.60 USD , Biogen Inc is Undervalued By 17.05%.
Relative Value
Fair Zone
167.09-251.28
Current Price:138.60
17.05%
Undervalued
9.03
PE
1Y
3Y
5Y
Trailing
Forward
6.37
EV/EBITDA
Biogen Inc. (BIIB) has a current EV/EBITDA of 6.37. The 5-year average EV/EBITDA is 10.23. The thresholds are as follows: Strongly Undervalued below 5.34, Undervalued between 5.34 and 7.79, Fairly Valued between 12.68 and 7.79, Overvalued between 12.68 and 15.13, and Strongly Overvalued above 15.13. The current Forward EV/EBITDA of 6.37 falls within the Undervalued range.
8.59
EV/EBIT
Biogen Inc. (BIIB) has a current EV/EBIT of 8.59. The 5-year average EV/EBIT is 12.42. The thresholds are as follows: Strongly Undervalued below 7.03, Undervalued between 7.03 and 9.72, Fairly Valued between 15.12 and 9.72, Overvalued between 15.12 and 17.81, and Strongly Overvalued above 17.81. The current Forward EV/EBIT of 8.59 falls within the Undervalued range.
2.14
PS
Biogen Inc. (BIIB) has a current PS of 2.14. The 5-year average PS is 3.49. The thresholds are as follows: Strongly Undervalued below 1.96, Undervalued between 1.96 and 2.73, Fairly Valued between 4.26 and 2.73, Overvalued between 4.26 and 5.03, and Strongly Overvalued above 5.03. The current Forward PS of 2.14 falls within the Undervalued range.
7.49
P/OCF
Biogen Inc. (BIIB) has a current P/OCF of 7.49. The 5-year average P/OCF is 11.71. The thresholds are as follows: Strongly Undervalued below 6.37, Undervalued between 6.37 and 9.04, Fairly Valued between 14.39 and 9.04, Overvalued between 14.39 and 17.06, and Strongly Overvalued above 17.06. The current Forward P/OCF of 7.49 falls within the Undervalued range.
7.56
P/FCF
Biogen Inc. (BIIB) has a current P/FCF of 7.56. The 5-year average P/FCF is 13.47. The thresholds are as follows: Strongly Undervalued below 7.13, Undervalued between 7.13 and 10.30, Fairly Valued between 16.65 and 10.30, Overvalued between 16.65 and 19.82, and Strongly Overvalued above 19.82. The current Forward P/FCF of 7.56 falls within the Undervalued range.
Biogen Inc (BIIB) has a current Price-to-Book (P/B) ratio of 1.15. Compared to its 3-year average P/B ratio of 2.20 , the current P/B ratio is approximately -47.74% higher. Relative to its 5-year average P/B ratio of 2.77, the current P/B ratio is about -58.40% higher. Biogen Inc (BIIB) has a Forward Free Cash Flow (FCF) yield of approximately 10.00%. Compared to its 3-year average FCF yield of 6.08%, the current FCF yield is approximately 64.55% lower. Relative to its 5-year average FCF yield of 7.33% , the current FCF yield is about 36.47% lower.
1.15
P/B
Median3y
2.20
Median5y
2.77
10.00
FCF Yield
Median3y
6.08
Median5y
7.33
Competitors Valuation Multiple
The average P/S ratio for BIIB's competitors is 10.05, providing a benchmark for relative valuation. Biogen Inc Corp (BIIB) exhibits a P/S ratio of 2.14, which is -78.73% above the industry average. Given its robust revenue growth of 7.33%, this premium appears unsustainable.
Performance Decomposition
1Y
3Y
5Y
Market capitalization of BIIB decreased by 32.31% over the past 1 year. The primary factor behind the change was an increase in Revenue Growth from 2.46B to 2.65B.
The secondary factor is the Margin Expansion, contributed 1.35%to the performance.
Overall, the performance of BIIB in the past 1 year is driven by Revenue Growth. Which is more sustainable.
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FAQ

Is Biogen Inc (BIIB) currently overvalued or undervalued?
Biogen Inc (BIIB) is now in the Undervalued zone, suggesting that its current forward PE ratio of 9.03 is considered Undervalued compared with the five-year average of 14.07. The fair price of Biogen Inc (BIIB) is between 167.09 to 251.28 according to relative valuation methord. Compared to the current price of 138.60 USD , Biogen Inc is Undervalued By 17.05% .

What is Biogen Inc (BIIB) fair value?

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

What is the current P/B ratio for Biogen Inc (BIIB) as of Aug 18 2025?

What is the current FCF Yield for Biogen Inc (BIIB) as of Aug 18 2025?

What is the current Forward P/E ratio for Biogen Inc (BIIB) as of Aug 18 2025?
