MRK vs PAHC vs ZYBT Stock Comparison

Merck, Phibro Animal Health and Zhengye Biotechnology Holding Prices as of Nov 5, 2026 Peers: Industry group
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MRK Merck & Co., Inc.
$146.90 +3.5% 1M +74.1% 1Y
Market cap
$363.29B
P/E
148.1x
Revenue (TTM)
$67.38B
Div. yield
0.02%
Pharmaceuticals Healthcare
5 wins

Head to Head

12 decided of 12

Phibro Animal Health leads on 7 of the 12 questions below (Phibro Animal Health 7, Merck 5). Which ones matter depends on what you are buying for; a cheap multiple and slow growth often come together.

QuestionMRKPAHCZYBTLeader
Larger companyMarket capitalisation $363.29B $1.38B $68.18M MRK
Cheaper on earningsLower P/E, profitable companies only 148.1x 13.4x -6.5x PAHC
Cheaper on forward earningsLower price / next fiscal year consensus EPS 56.5x 10.4x — PAHC
Faster revenue growthRevenue growth, trailing twelve months +4.9% +10.1% — PAHC
More profitableNet margin, trailing twelve months 3.6% 6.7% — PAHC
Better return on capitalReturn on invested capital 2.9% 13.9% — PAHC
Less leveragedLower net debt / EBITDA 3.4x 2.1x — PAHC
Higher dividend yieldTrailing dividend yield 0.02% 0.01% 0.00% MRK
Better 1-year returnPrice return, last 12 months +74.1% -14.0% -35.2% MRK
Better 5-year returnAnnualised price return, 5 years +12.5%/yr +9.6%/yr — MRK
Less volatileAnnualised volatility, 1 year 30.0% 56.6% 306.4% MRK
Higher overall scoreMean of the five percentile scores vs peers 61/100 70/100 — PAHC

Percentile Scorecard

MRKPAHCZYBT

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

AxisMRKPAHCZYBT
Valuation 86 #90 of 634 94 #38 of 634 85 #98 of 634
Growth 29 #431 of 608 85 #90 of 608 –
Profitability 90 #59 of 557 85 #86 of 557 –
Financial Health 21 #519 of 654 27 #476 of 654 32 #448 of 654
Shareholder Returns 79 #87 of 403 57 #175 of 403 –
Overall 61 70 –
  • MRK ranked among 671 companies in Pharmaceuticals and Biotechnology
  • PAHC ranked among 671 companies in Pharmaceuticals and Biotechnology
  • ZYBT 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

PeriodMRKPAHCZYBTSPY
1 month +3.5%-3.3%+24.3% -5.9%
3 months +14.5%-0.3%-34.0% -4.6%
6 months +30.8%-18.0%+40.8% +0.2%
Year to date +39.6%-5.2%+20.0% +7.5%
1 year +74.1%-14.0%-35.2% +8.2%
3 years +40.8%+189.5%— +68.3%
3 years, per year +12.1%+42.5%— +19.0%
5 years +80.0%+58.2%— +56.5%
5 years, per year +12.5%+9.6%— +9.4%
10 years +149.7%+35.1%— +251.5%
10 years, per year +9.6%+3.1%— +13.4%

Risk

MeasureMRKPAHCZYBTSPY
Volatility, 1Y 30.0%56.6%306.4% 13.6%
Downside volatility, 1Y 24.4%61.6%202.4% 14.2%
Beta vs S&P 500, 1Y 0.180.940.65 1.00
Return / volatility, 1Y 2.47-0.25-0.11 0.60
Max drawdown, 5Y -44.7%-57.9%-95.4% -25.4%
From 52-week high -6.1%-40.6%-82.8% -5.9%
52-week high $156.45$59.58$8.01 $779.14
52-week low $84.39$28.52$0.65 $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.

MultipleMRKPAHCZYBT
P/E now vs peer median 147.8xmedian 17.8x 14.0xmedian 17.8x -6.5xmedian 17.8x
P/S now vs peer median 5.4xmedian 8.1x 0.9xmedian 8.1x 3.9xmedian 8.1x
EV/EBITDA now vs peer median 31.7xmedian 15.7x 7.7xmedian 15.7x —median 15.7x
P/FCF now vs peer median 24.6xmedian 21.0x 66.3xmedian 21.0x 37.0xmedian 21.0x
P/B now vs peer median 8.1xmedian 2.0x 3.4xmedian 2.0x 1.5xmedian 2.0x
PEG now vs peer median -8.11median 0.36 0.20median 0.36 —median 0.36

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 monthsMRKPAHCZYBT
Revenue $67.38B $1.54B –
Gross profit $48.35B $521.27M –
Operating income $5.46B $192.78M –
Net income $2.45B $102.71M –
Free cash flow $14.75B $21.67M –
R&D $30.76B – –
EPS (diluted) $0.99 $2.51 –
Cash & equivalents $9.55B $75.55M $7.19M
Total debt $53.78B $610.88M $10.67M
Shares (diluted) 2.48B 40.96M 47.35M
Enterprise value $326.23B $1.06B $56.46M

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
MetricMRKPAHCZYBT
P/E 147.8x 14.0x -6.5x
P/FCF 24.6x 66.3x 37.0x
P/Operating cash flow 19.4x 16.8x –
P/S 5.4x 0.9x 3.9x
P/B 8.1x 3.4x 1.5x
P/Tangible book 17.7x 3.7x 1.8x
EV/EBITDA 31.7x 7.7x –
EV/EBIT 74.4x 10.2x –
EV/Revenue 6.0x 1.3x –
EV/FCF 27.6x 90.7x –
EV/Operating cash flow 21.7x 22.9x –
PEG (3Y EPS CAGR) -8.11 0.20 –

Growth

14 metrics
MetricMRKPAHCZYBT
Revenue growth (1Y) 4.9% 10.1% –
Revenue CAGR (3Y) 4.3% 16.4% –
Gross profit growth (1Y) -2.5% 19.5% –
Gross profit CAGR (3Y) 3.8% 20.6% –
Operating income growth (1Y) -74.8% 33.8% –
Operating income CAGR (3Y) -11.1% 49.7% –
Net income growth (1Y) -87.1% 51.5% –
Net income CAGR (3Y) -19.1% 70.5% –
EPS growth (1Y) -87.0% 51.2% –
EPS CAGR (3Y) -18.2% 69.8% –
Operating cash flow growth (1Y) 9.6% 11.6% –
Operating cash flow CAGR (3Y) 2.9% 28.7% –
Free cash flow growth (1Y) 13.0% -36.8% –
Free cash flow CAGR (3Y) 3.8% 74.0% –

Profitability

14 metrics
MetricMRKPAHCZYBT
Gross margin 71.8% 33.8% –
EBITDA margin 19.0% 16.5% –
Operating margin 8.1% 12.5% –
Pretax margin 7.1% 9.1% –
Net margin 3.6% 6.7% –
FCF margin 21.9% 1.4% –
Operating cash flow margin 27.8% 5.6% –
Return on equity 5.6% 25.6% –
Return on assets 1.9% 6.8% –
Return on invested capital 2.9% 13.9% –
Return on capital employed 5.3% 15.9% –
Asset turnover 0.5x 1.0x –
Cash conversion (OCF / net income) 7.6x 0.8x –
Stock comp / revenue 1.6% 0.1% –

Financial Health

11 metrics
MetricMRKPAHCZYBT
Debt / assets 40.5% 40.3% 17.1%
Debt / equity 1.2x 1.5x 0.2x
Net debt / EBITDA 3.4x 2.1x –
Debt / FCF 3.6x 28.2x –
Liabilities / assets 66.1% 72.4% 29.7%
Equity / assets 33.9% 27.6% 70.3%
Interest coverage – 4.2x –
Current ratio 1.4x 3.2x 1.1x
Quick ratio 0.8x 1.0x 0.6x
Cash ratio 0.3x 0.3x 0.4x
Altman Z-score 3.91 3.09 –

Shareholder Returns

7 metrics
MetricMRKPAHCZYBT
Dividend yield 2.3% 1.4% –
Net buyback yield 0.8% – –
Shareholder yield 3.2% 1.4% –
Payout ratio (earnings) 341.6% 19.0% –
Payout ratio (FCF) 56.7% 89.9% –
Dividend growth (1Y) 3.2% 0.1% –
Dividend CAGR (3Y) 4.4% 0.0% –

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.

ConsensusMRKPAHCZYBT
Forward P/E 56.5xFY2026 10.4xFY2027 –
EPS, next fiscal year $2.60FY2026 $3.42FY2027 –
EPS growth, next FY -71.0%FY2026 +6.2%FY2027 –
EPS growth, the year after +231.2% +9.6% –
Revenue, next fiscal year $69.61BFY2026 $1.53BFY2027 –
Revenue growth, next FY +7.1%FY2026 +0.6%FY2027 –
Revenue growth, the year after -4.5% -0.2% –

Institutional Ownership

13F filings, quarter ended Jun 30, 2026
HoldersMRKPAHCZYBT
Held by institutions 79.9% 99.1% –
Institutions holding 3,803 210 –
Change in shares held, QoQ +2.6% +3.0% –
Institutions buying 1,843 117 –
Institutions selling 1,469 75 –
Buyers to sellers 1.25 1.56 –

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.

MRKPAHCZYBT
MRK 1.00 0.25 -0.05
PAHC 0.25 1.00 0.00
ZYBT -0.05 0.00 1.00

Add a Peer

Largest companies in the same industry

Related Comparisons

Frequently Asked Questions

Which is bigger, MRK, PAHC and ZYBT?

Merck (MRK) is the largest by market capitalisation: Merck (MRK) $363.29B, Phibro Animal Health (PAHC) $1.38B, Zhengye Biotechnology Holding (ZYBT) $68.18M.

Which stock is cheaper, MRK, PAHC and ZYBT?

Phibro Animal Health (PAHC) trades on the lowest price-to-earnings ratio (Merck (MRK) 148.1x, Phibro Animal Health (PAHC) 13.4x, Zhengye Biotechnology Holding (ZYBT) -6.5x). On next year's consensus earnings, Phibro Animal Health (PAHC) is cheapest (Merck (MRK) 56.5x, Phibro Animal Health (PAHC) 10.4x). A lower multiple can reflect slower expected growth, so read it next to the growth figures.

Which company is growing faster?

Phibro Animal Health (PAHC) grew revenue fastest over the trailing twelve months: Merck (MRK) +4.9%, Phibro Animal Health (PAHC) +10.1%.

Which company is more profitable?

Phibro Animal Health (PAHC) has the highest net margin (Merck (MRK) 3.6%, Phibro Animal Health (PAHC) 6.7%). On return on invested capital, Phibro Animal Health (PAHC) leads (Merck (MRK) 2.9%, Phibro Animal Health (PAHC) 13.9%).

Which stock has performed better?

Over the past year Merck (MRK) returned the most: Merck (MRK) +74.1%, Phibro Animal Health (PAHC) -14.0%, Zhengye Biotechnology Holding (ZYBT) -35.2%. Over five years, Merck (MRK) compounded fastest (Merck (MRK) +12.5%/yr, Phibro Animal Health (PAHC) +9.6%/yr). Returns are price only, before dividends.

Which pays a higher dividend?

Merck (MRK) has the highest dividend yield: Merck (MRK) 0.02%, Phibro Animal Health (PAHC) 0.01%, Zhengye Biotechnology Holding (ZYBT) 0.00%. Zhengye Biotechnology Holding (ZYBT) pays no regular dividend.

Which stock is riskier?

By one-year price volatility, Merck (MRK) has been the steadiest (Merck (MRK) 30.0%, Phibro Animal Health (PAHC) 56.6%, Zhengye Biotechnology Holding (ZYBT) 306.4%). Volatility measures how widely the price swings, not the risk of the business.

Which is the better stock, MRK, PAHC and ZYBT?

There is no single answer; it depends on what you are buying for. On the 12 head-to-head measures on this page, Phibro Animal Health (PAHC) leads on 7. 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.