BIIB vs ARGX vs ALNY Stock Comparison

Biogen, Argenx Se and Alnylam Pharmaceuticals Prices as of Oct 29, 2026 Peers: Industry group
BIIB Biogen Inc.
$249.65 +9.9% 1M +68.8% 1Y
Market cap
$37.50B
P/E
107.9x
Revenue (TTM)
$10.30B
Div. yield
–
Biotechnology Healthcare
3 wins
ARGX Argenx Se
$897.85 -7.5% 1M +9.2% 1Y
Market cap
$54.91B
P/E
29.3x
Revenue (TTM)
$5.82B
Div. yield
–
Biotechnology Healthcare
6 wins

Head to Head

9 decided of 12

Argenx Se leads on 6 of the 12 questions below (Argenx Se 6, Biogen 3). Which ones matter depends on what you are buying for; a cheap multiple and slow growth often come together.

QuestionBIIBARGXALNYLeader
Larger companyMarket capitalisation $37.50B $54.91B $22.03B ARGX
Cheaper on earningsLower P/E, profitable companies only 107.9x 29.3x 46.3x ARGX
Cheaper on forward earningsLower price / next fiscal year consensus EPS 19.5x 29.3x 25.7x BIIB
Faster revenue growthRevenue growth, trailing twelve months +2.3% +61.5% +60.8% ARGX
More profitableNet margin, trailing twelve months 3.4% 32.3% — ARGX
Better return on capitalReturn on invested capital 1.3% — — –
Less leveragedLower net debt / EBITDA 4.5x — — –
Higher dividend yieldTrailing dividend yield 0.00% 0.00% 0.00% –
Better 1-year returnPrice return, last 12 months +68.8% +9.2% -63.9% BIIB
Better 5-year returnAnnualised price return, 5 years -1.3%/yr +24.4%/yr +1.7%/yr ARGX
Less volatileAnnualised volatility, 1 year 34.3% 36.9% 58.8% BIIB
Higher overall scoreMean of the five percentile scores vs peers 60/100 92/100 65/100 ARGX

Percentile Scorecard

BIIBARGXALNY

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

AxisBIIBARGXALNY
Valuation 92 #53 of 624 83 #108 of 624 70 #187 of 624
Growth 26 #444 of 601 95 #34 of 601 96 #27 of 601
Profitability 87 #72 of 541 98 #11 of 541 –
Financial Health 33 #432 of 647 – 29 #463 of 647
Shareholder Returns – – –
Overall 60 92 65
  • BIIB ranked among 671 companies in Pharmaceuticals and Biotechnology
  • ARGX 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

PeriodBIIBARGXALNYSPY
1 month +9.9%-7.5%-31.5% +0.7%
3 months +20.1%+2.9%-15.3% +3.7%
6 months +31.9%+14.9%-43.8% +7.1%
Year to date +41.9%+6.8%-56.2% +12.8%
1 year +68.8%+9.2%-63.9% +11.9%
3 years +5.2%+93.4%+14.9% +85.2%
3 years, per year +1.7%+24.6%+4.7% +22.8%
5 years -6.4%+197.3%+9.0% +67.6%
5 years, per year -1.3%+24.4%+1.7% +10.9%
10 years -12.0%—+378.8% +262.0%
10 years, per year -1.3%—+17.0% +13.7%

Risk

MeasureBIIBARGXALNYSPY
Volatility, 1Y 34.3%36.9%58.8% 12.7%
Downside volatility, 1Y 32.8%34.7%74.8% 12.6%
Beta vs S&P 500, 1Y 0.250.390.42 1.00
Return / volatility, 1Y 2.010.25-1.09 0.94
Max drawdown, 5Y -64.4%-38.2%-64.6% -25.4%
From 52-week high -1.7%-15.2%-63.9% -1.2%
52-week high $253.84$1,058.90$481.59 $779.14
52-week low $147.86$663.93$174.00 $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.

MultipleBIIBARGXALNY
P/E now vs peer median 106.2xmedian 17.8x 29.3xmedian 17.8x 46.3xmedian 17.8x
P/S now vs peer median 3.6xmedian 9.1x 9.5xmedian 9.1x 4.6xmedian 9.1x
EV/EBITDA now vs peer median 32.3xmedian 15.0x —median 15.0x —median 15.0x
P/FCF now vs peer median 17.8xmedian 21.7x —median 21.7x 41.4xmedian 21.7x
P/B now vs peer median 2.0xmedian 2.2x —median 2.2x 6.5xmedian 2.2x
PEG now vs peer median -2.76median 0.35 0.28median 0.35 —median 0.35

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 monthsBIIBARGXALNY
Revenue $10.30B $5.82B $5.01B
Gross profit $7.62B $5.24B –
Operating income $445.10M $1.74B $977.59M
Net income $347.50M $1.88B –
Free cash flow $2.07B – –
R&D $2.15B $1.80B $1.56B
EPS (diluted) $2.35 $28.43 –
Cash & equivalents $1.30B – $1.75B
Total debt $7.29B – –
Shares (diluted) 147.80M 66.03M 138.28M
Enterprise value $26.81B $54.91B $22.03B

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
MetricBIIBARGXALNY
P/E 106.2x 29.3x 46.3x
P/FCF 17.8x – 41.4x
P/Operating cash flow 16.4x – –
P/S 3.6x 9.5x 4.6x
P/B 2.0x – 6.5x
P/Tangible book 6.7x – 6.5x
EV/EBITDA 32.3x – –
EV/EBIT 96.4x 31.9x –
EV/Revenue 4.2x 9.5x 4.6x
EV/FCF 20.7x – –
EV/Operating cash flow 19.1x – –
PEG (3Y EPS CAGR) -2.76 0.28 –

Growth

14 metrics
MetricBIIBARGXALNY
Revenue growth (1Y) 2.3% 61.5% 60.8%
Revenue CAGR (3Y) 1.0% 80.5% 42.7%
Gross profit growth (1Y) 0.6% 62.2% –
Gross profit CAGR (3Y) 0.5% 80.0% –
Operating income growth (1Y) -76.6% 120.6% 269.3%
Operating income CAGR (3Y) -34.8% 85.1% 68.2%
Net income growth (1Y) -78.4% 22.5% –
Net income CAGR (3Y) -38.1% 115.5% –
EPS growth (1Y) -78.5% 20.9% –
EPS CAGR (3Y) -38.5% 104.8% –
Operating cash flow growth (1Y) -8.4% – –
Operating cash flow CAGR (3Y) 18.2% – –
Free cash flow growth (1Y) -10.1% – –
Free cash flow CAGR (3Y) 24.9% – –

Profitability

14 metrics
MetricBIIBARGXALNY
Gross margin 74.0% 90.0% –
EBITDA margin 12.9% – –
Operating margin 4.3% 29.9% –
Pretax margin 4.3% 32.6% –
Net margin 3.4% 32.3% –
FCF margin 20.1% – –
Operating cash flow margin 21.8% – –
Return on equity 1.8% – –
Return on assets 1.1% – –
Return on invested capital 1.3% – –
Return on capital employed 1.6% – –
Asset turnover 0.3x – 0.7x
Cash conversion (OCF / net income) 6.5x – –
Stock comp / revenue 2.9% – –

Financial Health

11 metrics
MetricBIIBARGXALNY
Debt / assets 22.7% – –
Debt / equity 0.4x – –
Net debt / EBITDA 4.5x – –
Debt / FCF 3.5x – –
Liabilities / assets 41.0% – 54.9%
Equity / assets 59.0% – 45.1%
Interest coverage – 10,120x –
Current ratio 1.9x – 2.5x
Quick ratio 0.9x – –
Cash ratio 0.3x – –
Altman Z-score 3.11 – –

Shareholder Returns

7 metrics
MetricBIIBARGXALNY
Dividend yield – – –
Net buyback yield – – –
Shareholder yield – – –
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.

ConsensusBIIBARGXALNY
Forward P/E 19.5xFY2026 29.3xFY2026 25.7xFY2026
EPS, next fiscal year $12.81FY2026 $30.63FY2026 $6.76FY2026
EPS growth, next FY -16.2%FY2026 +56.5%FY2026 +190.1%FY2026
EPS growth, the year after +36.5% +26.9% +34.3%
Revenue, next fiscal year $9.96BFY2026 $6.08BFY2026 $5.68BFY2026
Revenue growth, next FY +0.7%FY2026 +43.1%FY2026 +53.1%FY2026
Revenue growth, the year after +11.9% +22.9% +27.8%

Institutional Ownership

13F filings, quarter ended Jun 30, 2026
HoldersBIIBARGXALNY
Held by institutions 96.4% 46.1% 99.7%
Institutions holding 1,037 505 787
Change in shares held, QoQ +6.0% -2.0% +3.8%
Institutions buying 549 264 412
Institutions selling 294 161 278
Buyers to sellers 1.87 1.64 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.

BIIBARGXALNY
BIIB 1.00 0.21 0.12
ARGX 0.21 1.00 0.15
ALNY 0.12 0.15 1.00

Add a Peer

Largest companies in the same industry

Related Comparisons

Frequently Asked Questions

Which is bigger, BIIB, ARGX and ALNY?

Argenx Se (ARGX) is the largest by market capitalisation: Biogen (BIIB) $37.50B, Argenx Se (ARGX) $54.91B, Alnylam Pharmaceuticals (ALNY) $22.03B.

Which stock is cheaper, BIIB, ARGX and ALNY?

Argenx Se (ARGX) trades on the lowest price-to-earnings ratio (Biogen (BIIB) 107.9x, Argenx Se (ARGX) 29.3x, Alnylam Pharmaceuticals (ALNY) 46.3x). On next year's consensus earnings, Biogen (BIIB) is cheapest (Biogen (BIIB) 19.5x, Argenx Se (ARGX) 29.3x, Alnylam Pharmaceuticals (ALNY) 25.7x). A lower multiple can reflect slower expected growth, so read it next to the growth figures.

Which company is growing faster?

Argenx Se (ARGX) grew revenue fastest over the trailing twelve months: Biogen (BIIB) +2.3%, Argenx Se (ARGX) +61.5%, Alnylam Pharmaceuticals (ALNY) +60.8%.

Which company is more profitable?

Argenx Se (ARGX) has the highest net margin (Biogen (BIIB) 3.4%, Argenx Se (ARGX) 32.3%).

Which stock has performed better?

Over the past year Biogen (BIIB) returned the most: Biogen (BIIB) +68.8%, Argenx Se (ARGX) +9.2%, Alnylam Pharmaceuticals (ALNY) -63.9%. Over five years, Argenx Se (ARGX) compounded fastest (Biogen (BIIB) -1.3%/yr, Argenx Se (ARGX) +24.4%/yr, Alnylam Pharmaceuticals (ALNY) +1.7%/yr). Returns are price only, before dividends.

Which stock is riskier?

By one-year price volatility, Biogen (BIIB) has been the steadiest (Biogen (BIIB) 34.3%, Argenx Se (ARGX) 36.9%, Alnylam Pharmaceuticals (ALNY) 58.8%). Volatility measures how widely the price swings, not the risk of the business.

Which is the better stock, BIIB, ARGX 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, Argenx Se (ARGX) leads on 6. 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.