What is BIIB's Intrinsic value?

Biogen Inc (BIIB) Intrinsic Value Analysis

Executive Summary

As of June 21, 2025, Biogen Inc's estimated intrinsic value ranges from $108.08 to $221.62 per share, depending on the valuation methodology applied.

Valuation Method Fair Value (USD) Implied Upside/Downside
Discounted Cash Flow (10Y) $221.62 +75.1%
Discounted Cash Flow (5Y) $205.63 +62.5%
Dividend Discount Model (Multi-Stage) $108.50 -14.3%
Dividend Discount Model (Stable) $108.08 -14.6%
Earnings Power Value $211.62 +67.2%

Is Biogen Inc (BIIB) undervalued or overvalued?

With the current market price at $126.54, the stock appears to be significantly undervalued.

Understanding Intrinsic Value

Intrinsic value represents the "true" worth of a company based on its fundamentals rather than market sentiment. We've employed multiple methodologies to triangulate Biogen Inc's intrinsic value, including:

  1. Discounted Cash Flow (DCF): Values the company based on projected future cash flows
  2. Dividend Discount Model (DDM): Values the company based on expected future dividend payments
  3. Earnings Power Value (EPV): Values the company based on its current earnings power, assuming no growth

Weighted Average Cost of Capital (WACC)

The cost of capital is a critical factor in valuation models, representing the required return for investors.

WACC Component Low High
Long-term bond rate 3.9% 4.4%
Equity market risk premium 4.6% 5.6%
Adjusted beta 0.84 1.03
Cost of equity 7.7% 10.6%
Cost of debt 4.0% 4.6%
Tax rate 12.8% 15.7%
Debt/Equity ratio 0.33 0.33
After-tax WACC 6.7% 8.9%

Valuation Methods

1. Discounted Cash Flow (DCF) Valuation

Our DCF model projects cash flows over 5-year and 10-year horizons, with the following key assumptions:

  • Forecast Period: 5-year DCF and 10-year DCF
  • Terminal Growth Rate: 0.0% (range: 3.0% - 5.0%)
  • Discount Rate: 7.8% (range: 0.0% - 9.3%)

Key Projections:

  • Revenue growth from $9,676 (FY12-2024) to $12,652 (FY12-2034)
  • Net profit margin expansion from 17% to 17%
  • Capital expenditures maintained at approximately 3% of revenue
DCF Model Fair Value Enterprise Value % from Terminal Value
5-Year Growth $206 $33,831M 72.9%
10-Year Growth $222 $36,173M 53.4%
5-Year EBITDA $226 $36,792M 75.1%
10-Year EBITDA $237 $38,370M 56.1%

2. Dividend Discount Model (DDM)

The DDM values a company based on its expected future dividend payments. We used two approaches:

Multi-Stage DDM:

  • Current payout ratio: 0.0%
  • Stable payout ratio: 90.0%
  • Growth transition: 5 years
  • Cost of equity: 9.2%
  • Long-term growth rate: 1.0%
  • Fair value: $108.50 (-14.3% from current price)

Stable DDM:

  • Stable payout ratio: 70% (Low) to 90% (High)
  • Cost of equity: 10.6% (Low) to 7.7% (High)
  • Long-term growth rate: 0.5% (Low) to 1.5% (High)
  • Fair value range: $70 to $146
  • Selected fair value: $108.08 (-14.6% from current price)

3. Earnings Power Value (EPV)

EPV assesses a company's value based on its current normalized earnings power, assuming no growth.

EPV Component Value
Normalized Earnings $2,651M
Discount Rate (WACC) 8.9% - 6.7%
Enterprise Value $29,662M - $39,754M
Net Debt $3,700M
Equity Value $25,962M - $36,055M
Outstanding Shares 147M
Fair Value $177 - $246
Selected Fair Value $211.62

Key Financial Metrics

Metric Value
Market Capitalization $18542M
Enterprise Value $22241M
Trailing P/E 12.53
Forward P/E 10.86
Trailing EV/EBITDA 12.60
Current Dividend Yield 0.00%
Dividend Growth Rate (5Y) 0.00%
Debt-to-Equity Ratio 0.33

Investment Decision Framework

To determine the most reliable intrinsic value estimate, we weigh each valuation method based on:

  1. Forecast Certainty: DCF methods rely on long-term projections, while earnings power value focuses on current normalized earnings
  2. Business Model Alignment: Dividend models are more appropriate for mature companies with established dividend policies
  3. Historical Accuracy: How well each method has predicted fair value historically

Valuation Weight Matrix

Valuation Method Weight Weighted Value
Discounted Cash Flow (10Y) 30% $66.49
Discounted Cash Flow (5Y) 25% $51.41
Dividend Discount Model (Multi-Stage) 20% $21.70
Dividend Discount Model (Stable) 15% $16.21
Earnings Power Value 10% $21.16
Weighted Average 100% $176.97

Investment Conclusion

Based on our comprehensive valuation analysis, Biogen Inc's weighted average intrinsic value is $176.97, which is approximately 39.8% above the current market price of $126.54.

Key investment considerations:

  • Strong projected earnings growth (17% to 17% margin)
  • Consistent cash flow generation

Given these factors, we believe Biogen Inc is currently significantly undervalued with the potential for long-term appreciation based on the company's growth trajectory and financial strength.