AUPH vs GSK vs MRK Stock Comparison

Aurinia Pharmaceuticals, Gsk and Merck Prices as of Oct 29, 2026 Peers: Industry group
GSK GSK plc
$48.68 -1.4% 1M +6.0% 1Y
Market cap
$105.04B
P/E
7.8x
Revenue (TTM)
$76.96B
Div. yield
3.69%
Pharmaceuticals Healthcare
4 wins
MRK Merck & Co., Inc.
$146.34 -2.0% 1M +69.0% 1Y
Market cap
$361.05B
P/E
147.4x
Revenue (TTM)
$67.38B
Div. yield
2.32%
Pharmaceuticals Healthcare
3 wins

Head to Head

10 decided of 12

Gsk leads on 4 of the 12 questions below (Gsk 4, Merck 3, Aurinia Pharmaceuticals 3). Which ones matter depends on what you are buying for; a cheap multiple and slow growth often come together.

QuestionAUPHGSKMRKLeader
Larger companyMarket capitalisation $2.29B $105.04B $361.05B MRK
Cheaper on earningsLower P/E, profitable companies only 7.1x 7.8x 147.4x AUPH
Cheaper on forward earningsLower price / next fiscal year consensus EPS 17.9x 9.6x 59.0x GSK
Faster revenue growthRevenue growth, trailing twelve months +19.8% +82.9% +4.9% GSK
More profitableNet margin, trailing twelve months 100.8% 16.4% — AUPH
Better return on capitalReturn on invested capital — — — –
Less leveragedLower net debt / EBITDA — — — –
Higher dividend yieldTrailing dividend yield — 3.69% 2.32% GSK
Better 1-year returnPrice return, last 12 months +40.8% +6.0% +69.0% MRK
Better 5-year returnAnnualised price return, 5 years -12.3%/yr +2.8%/yr +10.7%/yr MRK
Less volatileAnnualised volatility, 1 year 37.0% 26.0% 29.8% GSK
Higher overall scoreMean of the five percentile scores vs peers 90/100 80/100 61/100 AUPH

Percentile Scorecard

AUPHGSKMRK

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

AxisAUPHGSKMRK
Valuation 93 #44 of 624 91 #56 of 624 91 #60 of 624
Growth 96 #25 of 601 75 #149 of 601 21 #478 of 601
Profitability 97 #16 of 541 96 #24 of 541 –
Financial Health 74 #172 of 647 52 #310 of 647 –
Shareholder Returns 92 #31 of 359 85 #55 of 359 71 #104 of 359
Overall 90 80 61
  • AUPH ranked among 671 companies in Pharmaceuticals and Biotechnology
  • GSK ranked among 671 companies in Pharmaceuticals and Biotechnology
  • MRK 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

PeriodAUPHGSKMRKSPY
1 month +4.8%-1.4%-2.0% +0.7%
3 months +14.7%-6.5%+12.8% +3.7%
6 months +11.8%-6.9%+34.0% +7.1%
Year to date +7.9%-0.7%+39.0% +12.8%
1 year +40.8%+6.0%+69.0% +11.9%
3 years +134.1%+38.0%+42.5% +85.2%
3 years, per year +32.8%+11.3%+12.5% +22.8%
5 years -48.0%+15.0%+66.2% +67.6%
5 years, per year -12.3%+2.8%+10.7% +10.9%
10 years +432.8%+21.3%+148.7% +262.0%
10 years, per year +18.2%+1.9%+9.5% +13.7%

Risk

MeasureAUPHGSKMRKSPY
Volatility, 1Y 37.0%26.0%29.8% 12.7%
Downside volatility, 1Y 33.7%24.1%24.6% 12.6%
Beta vs S&P 500, 1Y 0.540.210.11 1.00
Return / volatility, 1Y 1.100.232.32 0.94
Max drawdown, 5Y -87.4%-38.8%-44.7% -25.4%
From 52-week high -7.6%-20.4%-6.5% -1.2%
52-week high $18.62$61.18$156.45 $779.14
52-week low $12.12$45.93$82.49 $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.

MultipleAUPHGSKMRK
P/E now vs peer median 7.1xmedian 17.8x 7.8xmedian 17.8x 147.4xmedian 17.8x
P/S now vs peer median 7.3xmedian 9.1x 1.4xmedian 9.1x 5.4xmedian 9.1x
EV/EBITDA now vs peer median 10.8xmedian 15.0x —median 15.0x —median 15.0x
P/FCF now vs peer median 13.1xmedian 21.7x —median 21.7x 22.9xmedian 21.7x
P/B now vs peer median 3.7xmedian 2.2x 4.3xmedian 2.2x —median 2.2x
PEG now vs peer median 0.08median 0.35 0.42median 0.35 -8.13median 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 monthsAUPHGSKMRK
Revenue $311.51M $76.96B $67.38B
Gross profit $281.47M $56.19B –
Operating income $150.75M $17.15B –
Net income $314.11M $2.75B –
Free cash flow $175.07M – –
R&D $39.85M $19.61B $30.76B
EPS (diluted) $2.35 $6.12 $0.99
Cash & equivalents $179.83M $3.88B –
Total debt – -$31.50B –
Shares (diluted) 133.53M 2.06B 2.47B
Enterprise value $715.62M $87.36B $361.05B

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
MetricAUPHGSKMRK
P/E 7.1x 7.8x 147.4x
P/FCF 13.1x – 22.9x
P/Operating cash flow 13.1x – –
P/S 7.3x 1.4x 5.4x
P/B 3.7x 4.3x –
P/Tangible book 3.7x -11.7x –
EV/EBITDA 10.8x – –
EV/EBIT 12.2x 4.1x –
EV/Revenue 5.9x 0.9x 5.4x
EV/FCF 10.5x – –
EV/Operating cash flow 10.5x – –
PEG (3Y EPS CAGR) 0.08 0.42 -8.13

Growth

14 metrics
MetricAUPHGSKMRK
Revenue growth (1Y) 19.8% 82.9% 4.9%
Revenue CAGR (3Y) 24.8% 28.3% 4.3%
Gross profit growth (1Y) 20.9% 84.8% –
Gross profit CAGR (3Y) 22.2% 29.1% –
Operating income growth (1Y) 189.8% 73.5% –
Operating income CAGR (3Y) 56.2% 20.2% –
Net income growth (1Y) 418.0% -70.9% –
Net income CAGR (3Y) 84.9% -48.4% –
EPS growth (1Y) 433.5% 75.6% -87.0%
EPS CAGR (3Y) 87.7% 18.8% -18.1%
Operating cash flow growth (1Y) 89.1% – –
Operating cash flow CAGR (3Y) 86.1% – –
Free cash flow growth (1Y) 89.4% – –
Free cash flow CAGR (3Y) 85.3% – –

Profitability

14 metrics
MetricAUPHGSKMRK
Gross margin 90.4% 73.0% –
EBITDA margin 54.6% – –
Operating margin 48.4% 22.3% –
Pretax margin 51.5% 20.5% –
Net margin 100.8% 16.4% –
FCF margin 56.2% – –
Operating cash flow margin 56.3% – –
Return on equity 53.1% 71.9% –
Return on assets 41.4% 19.2% –
Return on invested capital – – –
Return on capital employed 22.9% 14.8% –
Asset turnover 0.4x 0.9x –
Cash conversion (OCF / net income) 0.6x – –
Stock comp / revenue 4.7% – –

Financial Health

11 metrics
MetricAUPHGSKMRK
Debt / assets – -33.2% –
Debt / equity – -1.3x –
Net debt / EBITDA – – –
Debt / FCF – – –
Liabilities / assets 22.4% 74.4% –
Equity / assets 77.6% 25.6% –
Interest coverage 36.7x 10.1x –
Current ratio 5.4x -0.9x –
Quick ratio 4.8x -0.5x –
Cash ratio 4.4x -0.1x –
Altman Z-score 8.41 3.19 –

Shareholder Returns

7 metrics
MetricAUPHGSKMRK
Dividend yield – 3.7% 2.3%
Net buyback yield 0.9% – –
Shareholder yield 0.9% 3.7% 2.3%
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.

ConsensusAUPHGSKMRK
Forward P/E 17.9xFY2026 9.6xFY2026 59.0xFY2026
EPS, next fiscal year $0.96FY2026 $5.07FY2026 $2.48FY2026
EPS growth, next FY -53.6%FY2026 +7.9%FY2026 -72.4%FY2026
EPS growth, the year after +14.6% +4.7% +257.3%
Revenue, next fiscal year $348.13MFY2026 $48.12BFY2026 $69.45BFY2026
Revenue growth, next FY +23.0%FY2026 +7.8%FY2026 +6.8%FY2026
Revenue growth, the year after +6.9% +1.1% -3.8%

Institutional Ownership

13F filings, quarter ended Jun 30, 2026
HoldersAUPHGSKMRK
Held by institutions 58.7% 16.0% 79.9%
Institutions holding 281 1,038 3,798
Change in shares held, QoQ +5.4% -7.4% +2.6%
Institutions buying 156 484 1,843
Institutions selling 79 335 1,465
Buyers to sellers 1.97 1.44 1.26

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.

AUPHGSKMRK
AUPH 1.00 0.17 0.20
GSK 0.17 1.00 0.52
MRK 0.20 0.52 1.00

Add a Peer

Largest companies in the same industry

Related Comparisons

Frequently Asked Questions

Which is bigger, AUPH, GSK and MRK?

Merck (MRK) is the largest by market capitalisation: Aurinia Pharmaceuticals (AUPH) $2.29B, Gsk (GSK) $105.04B, Merck (MRK) $361.05B.

Which stock is cheaper, AUPH, GSK and MRK?

Aurinia Pharmaceuticals (AUPH) trades on the lowest price-to-earnings ratio (Aurinia Pharmaceuticals (AUPH) 7.1x, Gsk (GSK) 7.8x, Merck (MRK) 147.4x). On next year's consensus earnings, Gsk (GSK) is cheapest (Aurinia Pharmaceuticals (AUPH) 17.9x, Gsk (GSK) 9.6x, Merck (MRK) 59.0x). A lower multiple can reflect slower expected growth, so read it next to the growth figures.

Which company is growing faster?

Gsk (GSK) grew revenue fastest over the trailing twelve months: Aurinia Pharmaceuticals (AUPH) +19.8%, Gsk (GSK) +82.9%, Merck (MRK) +4.9%.

Which company is more profitable?

Aurinia Pharmaceuticals (AUPH) has the highest net margin (Aurinia Pharmaceuticals (AUPH) 100.8%, Gsk (GSK) 16.4%).

Which stock has performed better?

Over the past year Merck (MRK) returned the most: Aurinia Pharmaceuticals (AUPH) +40.8%, Gsk (GSK) +6.0%, Merck (MRK) +69.0%. Over five years, Merck (MRK) compounded fastest (Aurinia Pharmaceuticals (AUPH) -12.3%/yr, Gsk (GSK) +2.8%/yr, Merck (MRK) +10.7%/yr). Returns are price only, before dividends.

Which pays a higher dividend?

Gsk (GSK) has the highest dividend yield: Gsk (GSK) 3.69%, Merck (MRK) 2.32%. Aurinia Pharmaceuticals (AUPH) pays no regular dividend.

Which stock is riskier?

By one-year price volatility, Gsk (GSK) has been the steadiest (Aurinia Pharmaceuticals (AUPH) 37.0%, Gsk (GSK) 26.0%, Merck (MRK) 29.8%). Volatility measures how widely the price swings, not the risk of the business.

Which is the better stock, AUPH, GSK and MRK?

There is no single answer; it depends on what you are buying for. On the 12 head-to-head measures on this page, Gsk (GSK) leads on 4. 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.