BIIB vs GILD vs MRNA Stock Comparison

Biogen, Gilead Sciences and Moderna Prices as of Oct 28, 2026 Peers: Industry group
BIIB Biogen Inc.
$244.05 +6.7% 1M +63.6% 1Y
Market cap
$37.30B
P/E
107.4x
Revenue (TTM)
$10.30B
Div. yield
–
Biotechnology Healthcare
2 wins
GILD Gilead Sciences, Inc.
$159.20 +4.6% 1M +35.1% 1Y
Market cap
$202.60B
P/E
–
Revenue (TTM)
$30.46B
Div. yield
–
Biotechnology Healthcare
5 wins
MRNA Moderna, Inc.
$214.16 +8.6% 1M +744.8% 1Y
Market cap
$87.95B
P/E
–
Revenue (TTM)
$2.23B
Div. yield
–
Biotechnology Healthcare
2 wins

Head to Head

9 decided of 12

Gilead Sciences leads on 5 of the 12 questions below (Gilead Sciences 5, Biogen 2, Moderna 2). Which ones matter depends on what you are buying for; a cheap multiple and slow growth often come together.

QuestionBIIBGILDMRNALeader
Larger companyMarket capitalisation $37.30B $202.60B $87.95B GILD
Cheaper on earningsLower P/E, profitable companies only 107.4x -62.5x -27.9x –
Cheaper on forward earningsLower price / next fiscal year consensus EPS 19.1x — — –
Faster revenue growthRevenue growth, trailing twelve months +2.3% +5.5% -27.6% GILD
More profitableNet margin, trailing twelve months 3.4% -10.6% -141.4% BIIB
Better return on capitalReturn on invested capital 1.3% -6.0% -43.3% BIIB
Less leveragedLower net debt / EBITDA 4.5x 87.7x 1.5x MRNA
Higher dividend yieldTrailing dividend yield 0.00% 0.00% 0.00% –
Better 1-year returnPrice return, last 12 months +63.6% +35.1% +744.8% MRNA
Better 5-year returnAnnualised price return, 5 years -1.8%/yr +19.7%/yr -9.1%/yr GILD
Less volatileAnnualised volatility, 1 year 34.2% 26.8% 130.6% GILD
Higher overall scoreMean of the five percentile scores vs peers 59/100 61/100 57/100 GILD

Percentile Scorecard

BIIBGILDMRNA

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

AxisBIIBGILDMRNA
Valuation 92 #54 of 625 91 #60 of 625 69 #192 of 625
Growth 26 #446 of 602 31 #416 of 602 19 #488 of 602
Profitability 87 #73 of 549 85 #83 of 549 57 #235 of 549
Financial Health 33 #437 of 654 21 #515 of 654 55 #298 of 654
Shareholder Returns – 77 #86 of 367 85 #57 of 367
Overall 59 61 57
  • BIIB ranked among 672 companies in Pharmaceuticals and Biotechnology
  • GILD ranked among 672 companies in Pharmaceuticals and Biotechnology
  • MRNA 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

PeriodBIIBGILDMRNASPY
1 month +6.7%+4.6%+8.6% +0.9%
3 months +16.6%+19.9%+293.0% +5.9%
6 months +25.6%+23.6%+368.4% +8.5%
Year to date +38.7%+29.7%+626.2% +13.3%
1 year +63.6%+35.1%+744.8% +12.4%
3 years +4.1%+107.8%+197.8% +88.1%
3 years, per year +1.3%+27.6%+43.9% +23.5%
5 years -8.5%+145.4%-38.0% +68.2%
5 years, per year -1.8%+19.7%-9.1% +11.0%
10 years -14.0%+115.5%— +263.4%
10 years, per year -1.5%+8.0%— +13.8%

Risk

MeasureBIIBGILDMRNASPY
Volatility, 1Y 34.2%26.8%130.6% 12.7%
Downside volatility, 1Y 32.7%23.9%79.5% 12.7%
Beta vs S&P 500, 1Y 0.250.302.16 1.00
Return / volatility, 1Y 1.861.315.70 0.98
Max drawdown, 5Y -64.4%-29.4%-93.9% -25.4%
From 52-week high -3.9%0.0%-12.9% -0.9%
52-week high $253.84$159.20$245.81 $779.14
52-week low $147.86$117.88$22.36 $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.

MultipleBIIBGILDMRNA
P/E now vs peer median 103.8xmedian 17.4x -61.1xmedian 17.4x -27.1xmedian 17.4x
P/S now vs peer median 3.5xmedian 9.1x 6.5xmedian 9.1x 38.4xmedian 9.1x
EV/EBITDA now vs peer median 31.7xmedian 17.1x 838.9xmedian 17.1x -26.3xmedian 17.1x
P/FCF now vs peer median 17.4xmedian 19.0x 15.3xmedian 19.0x -68.7xmedian 19.0x
P/B now vs peer median 1.9xmedian 2.2x 16.7xmedian 2.2x 12.6xmedian 2.2x
PEG now vs peer median -2.70median 0.34 1.63median 0.34 0.42median 0.34

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 monthsBIIBGILDMRNA
Revenue $10.30B $30.46B $2.23B
Gross profit $7.62B $24.24B $521.00M
Operating income $445.10M -$2.50B -$3.32B
Net income $347.50M -$3.24B -$3.15B
Free cash flow $2.07B $12.94B -$1.24B
R&D $2.15B $6.07B $2.88B
EPS (diluted) $2.35 $-2.61 $-7.92
Cash & equivalents $1.30B $3.18B $1.72B
Total debt $7.29B $26.25B $591.00M
Shares (diluted) 147.80M 1.24B 398.00M
Enterprise value $26.62B $176.79B $67.30B

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
MetricBIIBGILDMRNA
P/E 103.8x -61.1x -27.1x
P/FCF 17.4x 15.3x -68.7x
P/Operating cash flow 16.1x 14.6x -79.6x
P/S 3.5x 6.5x 38.4x
P/B 1.9x 16.7x 12.6x
P/Tangible book 6.5x -89.7x 12.6x
EV/EBITDA 31.7x 838.9x -26.3x
EV/EBIT 94.5x -88.4x -24.4x
EV/Revenue 4.1x 7.2x 36.3x
EV/FCF 20.3x 17.0x -65.0x
EV/Operating cash flow 18.7x 16.3x -75.4x
PEG (3Y EPS CAGR) -2.70 1.63 0.42

Growth

14 metrics
MetricBIIBGILDMRNA
Revenue growth (1Y) 2.3% 5.5% -27.6%
Revenue CAGR (3Y) 1.0% 3.6% -40.6%
Gross profit growth (1Y) 0.6% 6.9% -67.8%
Gross profit CAGR (3Y) 0.5% 3.7% -56.0%
Operating income growth (1Y) -76.6% -131.0% -1.4%
Operating income CAGR (3Y) -34.8% -31.9% -103.9%
Net income growth (1Y) -78.4% -151.3% -8.5%
Net income CAGR (3Y) -38.1% -37.3% -66.4%
EPS growth (1Y) -78.5% -151.8% -5.8%
EPS CAGR (3Y) -38.5% -37.5% -65.1%
Operating cash flow growth (1Y) -8.4% 37.3% 60.2%
Operating cash flow CAGR (3Y) 18.2% 12.5% -68.1%
Free cash flow growth (1Y) -10.1% 38.1% 64.4%
Free cash flow CAGR (3Y) 24.9% 13.2% -18.2%

Profitability

14 metrics
MetricBIIBGILDMRNA
Gross margin 74.0% 79.6% 23.4%
EBITDA margin 12.9% 0.9% -138.2%
Operating margin 4.3% -8.2% -149.0%
Pretax margin 4.3% -6.4% -138.6%
Net margin 3.4% -10.6% -141.4%
FCF margin 20.1% 42.5% -55.8%
Operating cash flow margin 21.8% 44.5% -48.2%
Return on equity 1.8% -18.4% -44.5%
Return on assets 1.1% -6.1% -28.1%
Return on invested capital 1.3% -6.0% -43.3%
Return on capital employed 1.6% -6.0% -38.2%
Asset turnover 0.3x 0.6x 0.2x
Cash conversion (OCF / net income) 6.5x -4.2x 0.3x
Stock comp / revenue 2.9% 3.0% 20.7%

Financial Health

11 metrics
MetricBIIBGILDMRNA
Debt / assets 22.7% 53.2% 5.4%
Debt / equity 0.4x 2.2x 0.1x
Net debt / EBITDA 4.5x 87.7x 1.5x
Debt / FCF 3.5x 2.0x -0.5x
Liabilities / assets 41.0% 76.0% 38.3%
Equity / assets 59.0% 24.0% 61.7%
Interest coverage – -2.5x –
Current ratio 1.9x 1.3x 2.3x
Quick ratio 0.9x 0.7x 2.0x
Cash ratio 0.3x 0.3x 2.0x
Altman Z-score 3.07 3.74 12.42

Shareholder Returns

7 metrics
MetricBIIBGILDMRNA
Dividend yield – 2.0% –
Net buyback yield – 0.6% -0.1%
Shareholder yield – 2.6% -0.1%
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.

ConsensusBIIBGILDMRNA
Forward P/E 19.1xFY2026 – –
EPS, next fiscal year $12.81FY2026 $-0.39FY2026 $-8.02FY2026
EPS growth, next FY -16.2%FY2026 -104.8%FY2026 –
EPS growth, the year after +36.5% – –
Revenue, next fiscal year $9.96BFY2026 $28.65BFY2026 $2.04BFY2026
Revenue growth, next FY +0.7%FY2026 -2.7%FY2026 +5.1%FY2026
Revenue growth, the year after +11.9% +18.1% +26.8%

Institutional Ownership

13F filings, quarter ended Jun 30, 2026
HoldersBIIBGILDMRNA
Held by institutions 96.4% 89.6% 80.2%
Institutions holding 1,036 2,290 784
Change in shares held, QoQ +6.0% +5.1% +3.4%
Institutions buying 548 1,113 402
Institutions selling 294 850 238
Buyers to sellers 1.86 1.31 1.69

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.

BIIBGILDMRNA
BIIB 1.00 0.40 0.22
GILD 0.40 1.00 0.24
MRNA 0.22 0.24 1.00

Add a Peer

Largest companies in the same industry

Related Comparisons

Frequently Asked Questions

Which is bigger, BIIB, GILD and MRNA?

Gilead Sciences (GILD) is the largest by market capitalisation: Biogen (BIIB) $37.30B, Gilead Sciences (GILD) $202.60B, Moderna (MRNA) $87.95B.

Which company is growing faster?

Gilead Sciences (GILD) grew revenue fastest over the trailing twelve months: Biogen (BIIB) +2.3%, Gilead Sciences (GILD) +5.5%, Moderna (MRNA) -27.6%.

Which company is more profitable?

Biogen (BIIB) has the highest net margin (Biogen (BIIB) 3.4%, Gilead Sciences (GILD) -10.6%, Moderna (MRNA) -141.4%). On return on invested capital, Biogen (BIIB) leads (Biogen (BIIB) 1.3%, Gilead Sciences (GILD) -6.0%, Moderna (MRNA) -43.3%).

Which stock has performed better?

Over the past year Moderna (MRNA) returned the most: Biogen (BIIB) +63.6%, Gilead Sciences (GILD) +35.1%, Moderna (MRNA) +744.8%. Over five years, Gilead Sciences (GILD) compounded fastest (Biogen (BIIB) -1.8%/yr, Gilead Sciences (GILD) +19.7%/yr, Moderna (MRNA) -9.1%/yr). Returns are price only, before dividends.

Which stock is riskier?

By one-year price volatility, Gilead Sciences (GILD) has been the steadiest (Biogen (BIIB) 34.2%, Gilead Sciences (GILD) 26.8%, Moderna (MRNA) 130.6%). Volatility measures how widely the price swings, not the risk of the business.

Which is the better stock, BIIB, GILD and MRNA?

There is no single answer; it depends on what you are buying for. On the 12 head-to-head measures on this page, Gilead Sciences (GILD) 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.