BIIB Biogen Inc.
Stable Earnings Power
C+ 58.2 / 100 composite

AlphaQuality composite grade, weighted for stable earnings power businesses.

Profitability

Weight: 20%
C- 49
  • 5yr Avg ROIC 11.2%
  • Operating Margin Trend -1.52 pp/yr

Capital Efficiency

Weight: 15%
B+ 77
  • 5yr Avg ROE 12.3%
  • 5yr Share-Count CAGR -1.9%

Growth Quality

Weight: 15%
F 8
  • 5yr Revenue CAGR -6.1%
  • 5yr EPS CAGR -18.7%
  • Revenue-Growth Years (5) 1/5

Cash Generation

Weight: 15%
A 92
  • 5yr FCF Margin 20.3%
  • 5yr FCF/NI Conversion 1.35x

Balance Sheet

Weight: 20%
A- 84
  • Net Debt / EBITDA 1.01x
  • Interest Coverage (EBIT/Int) 8.80x
  • Altman Z-Score 3.53

Stability

Weight: 15%
D 35
  • EPS Volatility (σ/μ) 0.45
  • Negative-Revenue Years (5) 4/5
  • Piotroski F-Score 4

Guru Flow

Curated superinvestor sentiment — not part of the AlphaQuality grade.
Trimming

3 of 3 gurus held; 2 trimmed; 1 full exit.

Holders
3
Avg Δ position
-33.3%
New buys
0
Full exits
1
As of Q2 2026