Side-by-side comparison

Biogen vs Merck & Co.

As of Nov 11, 2026, P/E is 109.3x for Biogen vs 147.9x for Merck & Co.; P/S is 3.6x for Biogen vs 5.4x for Merck & Co.; revenue growth is 2.3% for Biogen vs 4.9% for Merck & Co.; net margin is 3.4% for Biogen vs 3.6% for Merck & Co..

What stands out

Key metrics

MetricBIIBMRK
Price$252.57$146.45
Market cap$37.33B$361.04B
P/E109.3x (#1)147.9x (#2)
P/S3.6x (#1)5.4x (#2)
Revenue growth2.3% (#2)4.9% (#1)
Operating margin——
Net margin3.4% (#2)3.6% (#1)
Debt / equity0.39 (#1)1.11 (#2)
1-year return+56.4% (#2)+60.1% (#1)
Research score53/100 (#1)50/100 (#2)

Higher is better for growth, margins, one-year return and overall score; lower is better for valuation and debt ratios. Ties share a rank and missing values are excluded.

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