BIIB vs REGN vs ALNY Stock Comparison

Biogen, Regeneron Pharmaceuticals and Alnylam Pharmaceuticals Prices as of Nov 4, 2026 Peers: Industry group
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BIIB Biogen Inc.
$254.46 +13.8% 1M +70.4% 1Y
Market cap
$37.52B
P/E
108.0x
Revenue (TTM)
$10.30B
Div. yield
–
Biotechnology Healthcare
1 win

Head to Head

11 decided of 12

Regeneron Pharmaceuticals leads on 5 of the 12 questions below (Regeneron Pharmaceuticals 5, Alnylam Pharmaceuticals 5, Biogen 1). Which ones matter depends on what you are buying for; a cheap multiple and slow growth often come together.

QuestionBIIBREGNALNYLeader
Larger companyMarket capitalisation $37.52B $95.60B $22.27B REGN
Cheaper on earningsLower P/E, profitable companies only 108.0x 19.8x 8.4x ALNY
Cheaper on forward earningsLower price / next fiscal year consensus EPS 19.9x 16.3x 23.8x REGN
Faster revenue growthRevenue growth, trailing twelve months +2.3% +18.6% +60.8% ALNY
More profitableNet margin, trailing twelve months 3.4% 28.5% 52.8% ALNY
Better return on capitalReturn on invested capital 1.3% 11.9% — REGN
Less leveragedLower net debt / EBITDA 4.5x -1.4x -3.1x ALNY
Higher dividend yieldTrailing dividend yield 0.00% 0.00% 0.00% –
Better 1-year returnPrice return, last 12 months +70.4% +48.2% -62.0% BIIB
Better 5-year returnAnnualised price return, 5 years -1.8%/yr +8.8%/yr -3.0%/yr REGN
Less volatileAnnualised volatility, 1 year 34.2% 33.7% 58.6% REGN
Higher overall scoreMean of the five percentile scores vs peers 59/100 74/100 82/100 ALNY

Percentile Scorecard

BIIBREGNALNY

Each axis is the mean percentile of its metrics against the company's industry group. 100 is the best in the group, 50 the middle.

Scores by Axis

AxisBIIBREGNALNY
Valuation 91 #56 of 634 90 #67 of 634 92 #55 of 634
Growth 25 #456 of 607 52 #292 of 607 99 #8 of 607
Profitability 87 #75 of 557 91 #50 of 557 90 #56 of 557
Financial Health 33 #437 of 654 74 #170 of 654 63 #246 of 654
Shareholder Returns – 63 #147 of 400 68 #129 of 400
Overall 59 74 82
  • BIIB ranked among 671 companies in Pharmaceuticals and Biotechnology
  • REGN ranked among 671 companies in Pharmaceuticals and Biotechnology
  • ALNY ranked among 671 companies in Pharmaceuticals and Biotechnology

Price Performance

Price return, split-adjusted, before dividends. Click a name to hide or show it.

Returns

PeriodBIIBREGNALNYSPY
1 month +13.8%+28.0%-26.7% -1.0%
3 months +23.1%+21.1%-29.6% -0.4%
6 months +33.4%+29.1%-46.8% +4.5%
Year to date +44.6%+20.6%-59.5% +12.4%
1 year +70.4%+48.2%-62.0% +13.6%
3 years +2.0%+13.9%-3.7% +76.4%
3 years, per year +0.7%+4.4%-1.3% +20.8%
5 years -8.7%+52.2%-14.0% +63.7%
5 years, per year -1.8%+8.8%-3.0% +10.4%
10 years -8.1%+172.6%+377.3% +267.7%
10 years, per year -0.8%+10.6%+16.9% +13.9%

Risk

MeasureBIIBREGNALNYSPY
Volatility, 1Y 34.2%33.7%58.6% 12.8%
Downside volatility, 1Y 32.7%30.7%74.7% 12.7%
Beta vs S&P 500, 1Y 0.250.230.44 1.00
Return / volatility, 1Y 2.061.43-1.06 1.06
Max drawdown, 5Y -64.4%-59.8%-67.8% -25.4%
From 52-week high 0.0%-4.4%-66.0% -1.6%
52-week high $254.46$973.36$473.29 $779.14
52-week low $149.33$600.66$158.00 $631.97

Valuation History

Weekly multiples on trailing twelve-month fundamentals. Negative or extreme readings (a loss year, a collapsed denominator) are left out so the chart stays readable.

MultipleBIIBREGNALNY
P/E now vs peer median 108.2xmedian 18.0x 19.6xmedian 18.0x 8.1xmedian 18.0x
P/S now vs peer median 3.7xmedian 9.1x 5.6xmedian 9.1x 4.3xmedian 9.1x
EV/EBITDA now vs peer median 32.9xmedian 16.2x 16.2xmedian 16.2x 17.8xmedian 16.2x
P/FCF now vs peer median 18.2xmedian 21.7x 24.7xmedian 21.7x 26.7xmedian 21.7x
P/B now vs peer median 2.0xmedian 2.2x 2.8xmedian 2.2x 6.0xmedian 2.2x
PEG now vs peer median -2.81median 0.38 2.18median 0.38 0.09median 0.38

Financial History

Reported figures by fiscal period, placed on the calendar year (or quarter) each period ended in, so companies with different fiscal years line up.

Trailing twelve monthsBIIBREGNALNY
Revenue $10.30B $16.90B $5.01B
Gross profit $7.62B $14.49B $3.88B
Operating income $445.10M $4.86B $977.59M
Net income $347.50M $4.82B $2.65B
Free cash flow $2.07B $3.83B $806.31M
R&D $2.15B $6.60B $1.56B
EPS (diluted) $2.35 $45.62 $19.16
Cash & equivalents $1.30B $3.66B $1.75B
Total debt $7.29B $1.99B $361.53M
Shares (diluted) 147.80M 105.60M 138.28M
Enterprise value $26.83B $60.94B $9.46B

All Metrics

58 metrics · best in bold

Bold marks the best reading: the lowest positive value for multiples, leverage and payout, the highest for everything else. The bar under each value is its percentile against that company's own peers. Hover a value for its rank and the peer median.

Valuation

12 metrics
MetricBIIBREGNALNY
P/E 108.2x 19.6x 8.1x
P/FCF 18.2x 24.7x 26.7x
P/Operating cash flow 16.7x 19.5x 22.6x
P/S 3.7x 5.6x 4.3x
P/B 2.0x 2.8x 6.0x
P/Tangible book 6.8x 2.9x 6.0x
EV/EBITDA 32.9x 16.2x 17.8x
EV/EBIT 98.0x 18.0x 18.8x
EV/Revenue 4.2x 5.2x 3.7x
EV/FCF 21.1x 22.8x 22.7x
EV/Operating cash flow 19.4x 18.0x 19.2x
PEG (3Y EPS CAGR) -2.81 2.18 0.09

Growth

14 metrics
MetricBIIBREGNALNY
Revenue growth (1Y) 2.3% 18.6% 60.8%
Revenue CAGR (3Y) 1.0% 8.9% 42.7%
Gross profit growth (1Y) 0.6% 19.1% 49.6%
Gross profit CAGR (3Y) 0.5% 8.8% 37.8%
Operating income growth (1Y) -76.6% 31.9% 269.3%
Operating income CAGR (3Y) -34.8% 4.8% 68.2%
Net income growth (1Y) -78.4% 5.2% 2,137%
Net income CAGR (3Y) -38.1% 6.5% 93.1%
EPS growth (1Y) -78.5% 6.8% 2,122%
EPS CAGR (3Y) -38.5% 9.0% 90.7%
Operating cash flow growth (1Y) -8.4% -4.4% 351.6%
Operating cash flow CAGR (3Y) 18.2% -2.5% 685.4%
Free cash flow growth (1Y) -10.1% -9.4% 382.3%
Free cash flow CAGR (3Y) 24.9% -6.0% 141.7%

Profitability

14 metrics
MetricBIIBREGNALNY
Gross margin 74.0% 85.8% 77.4%
EBITDA margin 12.9% 31.8% 20.6%
Operating margin 4.3% 28.8% 19.5%
Pretax margin 4.3% 33.7% 15.6%
Net margin 3.4% 28.5% 52.8%
FCF margin 20.1% 22.6% 16.1%
Operating cash flow margin 21.8% 28.7% 19.1%
Return on equity 1.8% 14.8% 106.9%
Return on assets 1.1% 11.2% 39.1%
Return on invested capital 1.3% 11.9% –
Return on capital employed 1.6% 13.2% 20.7%
Asset turnover 0.3x 0.4x 0.7x
Cash conversion (OCF / net income) 6.5x 1.0x 0.4x
Stock comp / revenue 2.9% 6.0% 6.1%

Financial Health

11 metrics
MetricBIIBREGNALNY
Debt / assets 22.7% 4.5% 4.5%
Debt / equity 0.4x 0.1x 0.1x
Net debt / EBITDA 4.5x -1.4x -3.1x
Debt / FCF 3.5x 0.5x 0.4x
Liabilities / assets 41.0% 24.6% 54.9%
Equity / assets 59.0% 75.4% 45.1%
Interest coverage – 104.2x 3.2x
Current ratio 1.9x 3.4x 2.5x
Quick ratio 0.9x 2.7x 2.3x
Cash ratio 0.3x 1.5x 1.7x
Altman Z-score 3.14 7.59 3.71

Shareholder Returns

7 metrics
MetricBIIBREGNALNY
Dividend yield – 0.4% –
Net buyback yield – 2.1% -0.5%
Shareholder yield – 2.5% -0.5%
Payout ratio (earnings) – – –
Payout ratio (FCF) – – –
Dividend growth (1Y) – – –
Dividend CAGR (3Y) – – –

Analyst Estimates

Solid lines are reported fiscal-year results; dashed lines are the consensus for the years ahead. Hover a year for the analysts' high and low, and how each result compared with its estimate.

ConsensusBIIBREGNALNY
Forward P/E 19.9xFY2026 16.3xFY2026 23.8xFY2026
EPS, next fiscal year $12.81FY2026 $57.08FY2026 $6.76FY2026
EPS growth, next FY -16.2%FY2026 +28.8%FY2026 +190.1%FY2026
EPS growth, the year after +36.5% +15.5% +34.3%
Revenue, next fiscal year $9.96BFY2026 $17.05BFY2026 $5.68BFY2026
Revenue growth, next FY +0.7%FY2026 +18.9%FY2026 +53.1%FY2026
Revenue growth, the year after +11.9% +13.0% +27.8%

Institutional Ownership

13F filings, quarter ended Jun 30, 2026
HoldersBIIBREGNALNY
Held by institutions 96.4% 66.2% 99.7%
Institutions holding 1,038 1,329 788
Change in shares held, QoQ +6.0% +3.8% +3.8%
Institutions buying 550 607 412
Institutions selling 294 534 279
Buyers to sellers 1.87 1.14 1.48

Return Correlation

Daily returns, last 12 months

1.00 means two stocks move in lockstep, 0 that they move independently. Pairs below about 0.5 diversify each other.

BIIBREGNALNY
BIIB 1.00 0.32 0.11
REGN 0.32 1.00 0.05
ALNY 0.11 0.05 1.00

Add a Peer

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Frequently Asked Questions

Which is bigger, BIIB, REGN and ALNY?

Regeneron Pharmaceuticals (REGN) is the largest by market capitalisation: Biogen (BIIB) $37.52B, Regeneron Pharmaceuticals (REGN) $95.60B, Alnylam Pharmaceuticals (ALNY) $22.27B.

Which stock is cheaper, BIIB, REGN and ALNY?

Alnylam Pharmaceuticals (ALNY) trades on the lowest price-to-earnings ratio (Biogen (BIIB) 108.0x, Regeneron Pharmaceuticals (REGN) 19.8x, Alnylam Pharmaceuticals (ALNY) 8.4x). On next year's consensus earnings, Regeneron Pharmaceuticals (REGN) is cheapest (Biogen (BIIB) 19.9x, Regeneron Pharmaceuticals (REGN) 16.3x, Alnylam Pharmaceuticals (ALNY) 23.8x). A lower multiple can reflect slower expected growth, so read it next to the growth figures.

Which company is growing faster?

Alnylam Pharmaceuticals (ALNY) grew revenue fastest over the trailing twelve months: Biogen (BIIB) +2.3%, Regeneron Pharmaceuticals (REGN) +18.6%, Alnylam Pharmaceuticals (ALNY) +60.8%.

Which company is more profitable?

Alnylam Pharmaceuticals (ALNY) has the highest net margin (Biogen (BIIB) 3.4%, Regeneron Pharmaceuticals (REGN) 28.5%, Alnylam Pharmaceuticals (ALNY) 52.8%). On return on invested capital, Regeneron Pharmaceuticals (REGN) leads (Biogen (BIIB) 1.3%, Regeneron Pharmaceuticals (REGN) 11.9%).

Which stock has performed better?

Over the past year Biogen (BIIB) returned the most: Biogen (BIIB) +70.4%, Regeneron Pharmaceuticals (REGN) +48.2%, Alnylam Pharmaceuticals (ALNY) -62.0%. Over five years, Regeneron Pharmaceuticals (REGN) compounded fastest (Biogen (BIIB) -1.8%/yr, Regeneron Pharmaceuticals (REGN) +8.8%/yr, Alnylam Pharmaceuticals (ALNY) -3.0%/yr). Returns are price only, before dividends.

Which stock is riskier?

By one-year price volatility, Regeneron Pharmaceuticals (REGN) has been the steadiest (Biogen (BIIB) 34.2%, Regeneron Pharmaceuticals (REGN) 33.7%, Alnylam Pharmaceuticals (ALNY) 58.6%). Volatility measures how widely the price swings, not the risk of the business.

Which is the better stock, BIIB, REGN and ALNY?

There is no single answer; it depends on what you are buying for. On the 12 head-to-head measures on this page, Regeneron Pharmaceuticals (REGN) leads on 5. Business Quant does not give investment advice; use the comparison as a starting point for your own research.

Data from SEC filings, exchange prices and consensus estimates, via Business Quant. Percentile scores compare each company with its own peer group, so two companies' scores are each relative to different peers unless you rank against the whole market. Price returns exclude dividends. Nothing on this page is investment advice.