BIIB vs ARGX Stock Comparison

Biogen and Argenx Se Prices as of Oct 27, 2026 Peers: Industry group
BIIB Biogen Inc.
$252.73 +11.0% 1M +68.0% 1Y
Market cap
$37.34B
P/E
44.7x
Revenue (TTM)
$10.03B
Div. yield
–
Biotechnology Healthcare
3 wins
ARGX Argenx Se
$882.48 -8.0% 1M +6.3% 1Y
Market cap
$54.61B
P/E
28.8x
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.

QuestionBIIBARGXLeader
Larger companyMarket capitalisation $37.34B $54.61B ARGX
Cheaper on earningsLower P/E, profitable companies only 44.7x 28.8x ARGX
Cheaper on forward earningsLower price / next fiscal year consensus EPS 19.7x 28.8x BIIB
Faster revenue growthRevenue growth, trailing twelve months +0.3% +61.5% ARGX
More profitableNet margin, trailing twelve months 8.3% 32.3% ARGX
Better return on capitalReturn on invested capital 3.3% — –
Less leveragedLower net debt / EBITDA 3.2x — –
Higher dividend yieldTrailing dividend yield — — –
Better 1-year returnPrice return, last 12 months +68.0% +6.3% BIIB
Better 5-year returnAnnualised price return, 5 years -0.9%/yr +25.8%/yr ARGX
Less volatileAnnualised volatility, 1 year 34.0% 36.9% BIIB
Higher overall scoreMean of the five percentile scores vs peers 63/100 92/100 ARGX

Percentile Scorecard

BIIBARGX

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

AxisBIIBARGX
Valuation 92 #52 of 625 84 #99 of 625
Growth 35 #392 of 602 94 #35 of 602
Profitability 89 #64 of 551 98 #11 of 551
Financial Health 35 #425 of 656 –
Shareholder Returns – –
Overall 63 92
  • BIIB ranked among 672 companies in Pharmaceuticals and Biotechnology
  • ARGX ranked among 672 companies in Pharmaceuticals and Biotechnology

Price Performance

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

Returns

PeriodBIIBARGXSPY
1 month +11.0%-8.0% -0.2%
3 months +22.9%+1.2% +3.9%
6 months +37.8%+13.9% +8.2%
Year to date +43.6%+4.9% +12.9%
1 year +68.0%+6.3% +12.3%
3 years +7.8%+91.9% +87.4%
3 years, per year +2.5%+24.3% +23.3%
5 years -4.6%+214.2% +67.9%
5 years, per year -0.9%+25.8% +10.9%
10 years -13.1%— +261.1%
10 years, per year -1.4%— +13.7%

Risk

MeasureBIIBARGXSPY
Volatility, 1Y 34.0%36.9% 12.7%
Downside volatility, 1Y 32.3%34.6% 12.7%
Beta vs S&P 500, 1Y 0.260.39 1.00
Return / volatility, 1Y 2.000.17 0.97
Max drawdown, 5Y -64.4%-38.2% -25.4%
From 52-week high -0.4%-16.7% -1.2%
52-week high $253.84$1,058.90 $779.14
52-week low $147.86$663.93 $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.

MultipleBIIBARGX
P/E now vs peer median 44.7xmedian 17.2x 28.8xmedian 17.2x
P/S now vs peer median 3.7xmedian 9.0x 9.4xmedian 9.0x
EV/EBITDA now vs peer median 23.4xmedian 16.3x —median 16.3x
P/FCF now vs peer median 13.8xmedian 18.7x —median 18.7x
P/B now vs peer median 2.0xmedian 2.2x —median 2.2x
PEG now vs peer median -1.37median 0.33 0.27median 0.33

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 monthsBIIBARGX
Revenue $10.03B $5.82B
Gross profit $7.42B $5.24B
Operating income $1.01B $1.74B
Net income $834.60M $1.88B
Free cash flow $2.70B –
R&D $2.01B $1.80B
EPS (diluted) $5.61 $28.43
Cash & equivalents $1.29B –
Total debt $7.29B –
Shares (diluted) 148.70M 66.03M
Enterprise value $24.00B $54.61B

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
MetricBIIBARGX
P/E 44.7x 28.8x
P/FCF 13.8x –
P/Operating cash flow 13.0x –
P/S 3.7x 9.4x
P/B 2.0x –
P/Tangible book 7.0x –
EV/EBITDA 23.4x –
EV/EBIT 42.9x 31.4x
EV/Revenue 4.3x 9.4x
EV/FCF 16.1x –
EV/Operating cash flow 15.1x –
PEG (3Y EPS CAGR) -1.37 0.27

Growth

14 metrics
MetricBIIBARGX
Revenue growth (1Y) 0.3% 61.5%
Revenue CAGR (3Y) 0.2% 80.5%
Gross profit growth (1Y) -1.6% 62.2%
Gross profit CAGR (3Y) -1.1% 80.0%
Operating income growth (1Y) -43.7% 120.6%
Operating income CAGR (3Y) -31.3% 85.1%
Net income growth (1Y) -45.5% 22.5%
Net income CAGR (3Y) -32.1% 115.5%
EPS growth (1Y) -46.2% 20.9%
EPS CAGR (3Y) -32.6% 104.8%
Operating cash flow growth (1Y) 36.0% –
Operating cash flow CAGR (3Y) 26.3% –
Free cash flow growth (1Y) 36.3% –
Free cash flow CAGR (3Y) 33.0% –

Profitability

14 metrics
MetricBIIBARGX
Gross margin 74.0% 90.0%
EBITDA margin 18.5% –
Operating margin 10.1% 29.9%
Pretax margin 10.1% 32.6%
Net margin 8.3% 32.3%
FCF margin 26.9% –
Operating cash flow margin 28.7% –
Return on equity 4.5% –
Return on assets 2.7% –
Return on invested capital 3.3% –
Return on capital employed 3.8% –
Asset turnover 0.3x –
Cash conversion (OCF / net income) 3.4x –
Stock comp / revenue 3.0% –

Financial Health

11 metrics
MetricBIIBARGX
Debt / assets 22.7% –
Debt / equity 0.4x –
Net debt / EBITDA 3.2x –
Debt / FCF 2.7x –
Liabilities / assets 41.3% –
Equity / assets 58.7% –
Interest coverage – 10,120x
Current ratio 1.9x –
Quick ratio 1.1x –
Cash ratio 0.3x –
Altman Z-score 3.15 –

Shareholder Returns

7 metrics
MetricBIIBARGX
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.

ConsensusBIIBARGX
Forward P/E 19.7xFY2026 28.8xFY2026
EPS, next fiscal year $12.81FY2026 $30.63FY2026
EPS growth, next FY -16.2%FY2026 +56.5%FY2026
EPS growth, the year after +36.5% +26.9%
Revenue, next fiscal year $9.96BFY2026 $6.08BFY2026
Revenue growth, next FY +0.7%FY2026 +43.1%FY2026
Revenue growth, the year after +11.9% +22.9%

Institutional Ownership

13F filings, quarter ended Jun 30, 2026
HoldersBIIBARGX
Held by institutions 96.4% 46.1%
Institutions holding 1,036 504
Change in shares held, QoQ +6.0% -2.0%
Institutions buying 548 264
Institutions selling 294 160
Buyers to sellers 1.86 1.65

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.

BIIBARGX
BIIB 1.00 0.21
ARGX 0.21 1.00

Add a Peer

Largest companies in the same industry

Related Comparisons

Frequently Asked Questions

Which is bigger, BIIB and ARGX?

Argenx Se (ARGX) is the largest by market capitalisation: Biogen (BIIB) $37.34B, Argenx Se (ARGX) $54.61B.

Which stock is cheaper, BIIB and ARGX?

Argenx Se (ARGX) trades on the lowest price-to-earnings ratio (Biogen (BIIB) 44.7x, Argenx Se (ARGX) 28.8x). On next year's consensus earnings, Biogen (BIIB) is cheapest (Biogen (BIIB) 19.7x, Argenx Se (ARGX) 28.8x). 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) +0.3%, Argenx Se (ARGX) +61.5%.

Which company is more profitable?

Argenx Se (ARGX) has the highest net margin (Biogen (BIIB) 8.3%, Argenx Se (ARGX) 32.3%).

Which stock has performed better?

Over the past year Biogen (BIIB) returned the most: Biogen (BIIB) +68.0%, Argenx Se (ARGX) +6.3%. Over five years, Argenx Se (ARGX) compounded fastest (Biogen (BIIB) -0.9%/yr, Argenx Se (ARGX) +25.8%/yr). Returns are price only, before dividends.

Which stock is riskier?

By one-year price volatility, Biogen (BIIB) has been the steadiest (Biogen (BIIB) 34.0%, Argenx Se (ARGX) 36.9%). Volatility measures how widely the price swings, not the risk of the business.

Do BIIB and ARGX move together?

Their daily returns over the past year have a correlation of 0.21, a weak relationship. Holding both diversifies more than two closely linked stocks would.

Which is the better stock, BIIB and ARGX?

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.