CAH vs AMRX vs ZSTK Stock Comparison

Cardinal Health, Amneal Pharmaceuticals and ZeroStack Prices as of Nov 2, 2026 Peers: Industry group
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CAH Cardinal Health Inc
$254.35 +11.4% 1M +33.3% 1Y
Market cap
$59.16B
P/E
35.0x
Revenue (TTM)
$254.25B
Div. yield
0.81%
Drug Distribution Healthcare
5 wins
ZSTK ZeroStack Corp.
$2.82 -42.0% 1M -70.4% 1Y
Market cap
$28.09M
P/E
–
Revenue (TTM)
$40.03M
Div. yield
–
Drug Distribution Healthcare
2 wins

Head to Head

11 decided of 12

Cardinal Health leads on 5 of the 12 questions below (Cardinal Health 5, Amneal Pharmaceuticals 4, ZeroStack 2). Which ones matter depends on what you are buying for; a cheap multiple and slow growth often come together.

QuestionCAHAMRXZSTKLeader
Larger companyMarket capitalisation $59.16B $6.53B $28.09M CAH
Cheaper on earningsLower P/E, profitable companies only 35.0x 41.5x -0.2x CAH
Cheaper on forward earningsLower price / next fiscal year consensus EPS 21.1x 21.1x — AMRX
Faster revenue growthRevenue growth, trailing twelve months +14.2% +9.3% +27.3% ZSTK
More profitableNet margin, trailing twelve months 0.7% 5.0% -444.3% AMRX
Better return on capitalReturn on invested capital 33.9% 17.4% -852.2% CAH
Less leveragedLower net debt / EBITDA 1.1x 3.8x 0.0x ZSTK
Higher dividend yieldTrailing dividend yield 0.81% — — –
Better 1-year returnPrice return, last 12 months +33.3% +88.9% -70.4% AMRX
Better 5-year returnAnnualised price return, 5 years +38.3%/yr +30.9%/yr -76.1%/yr CAH
Less volatileAnnualised volatility, 1 year 25.8% 34.2% 169.1% CAH
Higher overall scoreMean of the five percentile scores vs peers 63/100 70/100 26/100 AMRX

Percentile Scorecard

CAHAMRXZSTK

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

AxisCAHAMRXZSTK
Valuation 75 #7 of 25 92 #52 of 623 17 #21 of 25
Growth 78 #6 of 24 74 #158 of 601 44 #14 of 24
Profitability 65 #9 of 24 84 #90 of 553 9 #22 of 24
Financial Health 40 #16 of 26 12 #578 of 654 60 #11 of 26
Shareholder Returns 56 #8 of 17 88 #45 of 367 0 #17 of 17
Overall 63 70 26
  • CAH ranked among 27 companies in Healthcare Payers and Distributors
  • AMRX ranked among 671 companies in Pharmaceuticals and Biotechnology
  • ZSTK ranked among 27 companies in Healthcare Payers and Distributors

Price Performance

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

Returns

PeriodCAHAMRXZSTKSPY
1 month +11.4%+0.7%-42.0% -2.3%
3 months +7.9%+8.4%+63.0% -0.7%
6 months +29.1%+55.9%-43.3% +4.8%
Year to date +23.8%+62.2%-55.0% +10.3%
1 year +33.3%+88.9%-70.4% +10.3%
3 years +153.8%+376.5%-92.1% +73.0%
3 years, per year +36.4%+68.3%-57.1% +20.1%
5 years +404.7%+284.2%-99.9% +61.9%
5 years, per year +38.3%+30.9%-76.1% +10.1%
10 years +270.4%—— +258.6%
10 years, per year +14.0%—— +13.6%

Risk

MeasureCAHAMRXZSTKSPY
Volatility, 1Y 25.8%34.2%169.1% 12.8%
Downside volatility, 1Y 24.7%31.0%130.9% 12.8%
Beta vs S&P 500, 1Y -0.010.661.59 1.00
Return / volatility, 1Y 1.292.60-0.42 0.80
Max drawdown, 5Y -21.0%-76.2%-100.0% -25.4%
From 52-week high -1.2%-4.7%-76.1% -3.5%
52-week high $257.54$21.44$11.80 $779.14
52-week low $182.50$11.19$1.37 $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.

MultipleCAHAMRXZSTK
P/E now vs peer median 35.0xmedian 24.6x 41.5xmedian 17.4x -0.2xmedian 24.6x
P/S now vs peer median 0.2xmedian 0.3x 2.1xmedian 8.9x 0.7xmedian 0.3x
EV/EBITDA now vs peer median 17.7xmedian 13.2x 13.6xmedian 17.0x -0.1xmedian 13.2x
P/FCF now vs peer median 13.1xmedian 16.5x 78.5xmedian 21.4x -5.0xmedian 16.5x
P/B now vs peer median -20.5xmedian 2.5x 197.7xmedian 2.1x 2.0xmedian 2.5x
PEG now vs peer median 0.51median 1.39 0.17median 0.35 0.00median 1.39

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 monthsCAHAMRXZSTK
Revenue $254.25B $3.12B $40.03M
Gross profit $9.77B $1.23B $5.26M
Operating income $2.61B $453.92M -$239.39M
Net income $1.72B $215.32M -$177.88M
Free cash flow $4.53B $83.11M -$5.64M
R&D – $175.57M –
EPS (diluted) $7.23 $0.48 $-17.86
Cash & equivalents $4.86B $127.64M $2.64M
Total debt $8.89B $2.67B $2.41M
Shares (diluted) 237.00M 328.10M 9.96M
Enterprise value $43.15B $5.80B $4.78M

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
MetricCAHAMRXZSTK
P/E 35.0x 41.5x -0.2x
P/FCF 13.1x 78.5x -5.0x
P/Operating cash flow 11.4x 32.5x -5.0x
P/S 0.2x 2.1x 0.7x
P/B -20.5x 197.7x 2.0x
P/Tangible book -20.5x -11.8x 2.0x
EV/EBITDA 17.7x 13.6x -0.1x
EV/EBIT 24.2x 20.0x -0.1x
EV/Revenue 0.2x 2.9x 0.7x
EV/FCF 14.0x 109.1x -4.9x
EV/Operating cash flow 12.2x 45.2x -5.0x
PEG (3Y EPS CAGR) 0.51 0.17 0.00

Growth

14 metrics
MetricCAHAMRXZSTK
Revenue growth (1Y) 14.2% 9.3% 27.3%
Revenue CAGR (3Y) 7.4% 10.5% -13.1%
Gross profit growth (1Y) 19.7% 14.1% 171.8%
Gross profit CAGR (3Y) 12.3% 14.9% -32.4%
Operating income growth (1Y) 14.9% 20.6% -2,574%
Operating income CAGR (3Y) 50.2% 32.5% -57.0%
Net income growth (1Y) 9.8% 426.4% -1,263%
Net income CAGR (3Y) 63.8% 139.1% -37.3%
EPS growth (1Y) 12.1% 4,481% 24.9%
EPS CAGR (3Y) 69.2% 237.0% 64.4%
Operating cash flow growth (1Y) 115.9% -42.8% 37.6%
Operating cash flow CAGR (3Y) 22.1% 0.4% 23.9%
Free cash flow growth (1Y) 144.6% -69.3% 37.9%
Free cash flow CAGR (3Y) 24.2% -17.3% 25.2%

Profitability

14 metrics
MetricCAHAMRXZSTK
Gross margin 3.8% 39.3% 13.1%
EBITDA margin 1.4% 21.3% -597.5%
Operating margin 1.0% 14.6% -598.0%
Pretax margin 0.9% 6.5% -436.1%
Net margin 0.7% 5.0% -444.3%
FCF margin 1.8% 2.7% -14.1%
Operating cash flow margin 2.0% 6.4% -14.0%
Return on equity – – -702.9%
Return on assets 3.0% 5.9% -505.5%
Return on invested capital 33.9% 17.4% -852.2%
Return on capital employed 20.0% 16.4% -994.1%
Asset turnover 4.5x 0.9x 1.1x
Cash conversion (OCF / net income) 3.0x 0.9x 0.0x
Stock comp / revenue 0.1% 1.1% 13.1%

Financial Health

11 metrics
MetricCAHAMRXZSTK
Debt / assets 15.5% 70.7% 9.6%
Debt / equity -3.1x 80.9x 0.2x
Net debt / EBITDA 1.1x 3.8x 0.0x
Debt / FCF 2.0x 32.1x -0.4x
Liabilities / assets 105.0% 99.1% 45.1%
Equity / assets -5.0% 0.9% 54.9%
Interest coverage 7.5x – –
Current ratio 0.9x 2.2x 0.9x
Quick ratio 0.4x 1.3x 0.7x
Cash ratio 0.1x 0.1x 0.2x
Altman Z-score 5.12 2.45 -47.17

Shareholder Returns

7 metrics
MetricCAHAMRXZSTK
Dividend yield 0.8% – –
Net buyback yield 2.3% 0.0% -53.5%
Shareholder yield 3.1% 0.0% -53.5%
Payout ratio (earnings) 28.5% – –
Payout ratio (FCF) 10.9% – –
Dividend growth (1Y) -0.6% – –
Dividend CAGR (3Y) -2.2% – –

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.

ConsensusCAHAMRXZSTK
Forward P/E 21.1xFY2027 21.1xFY2026 –
EPS, next fiscal year $12.03FY2027 $0.97FY2026 $-4.29FY2026
EPS growth, next FY +6.8%FY2027 +16.9%FY2026 –
EPS growth, the year after +13.5% +26.8% –
Revenue, next fiscal year $272.90BFY2027 $3.24BFY2026 $31.29MFY2026
Revenue growth, next FY +7.3%FY2027 +7.4%FY2026 -12.3%FY2026
Revenue growth, the year after -3.5% +12.4% -10.3%

Institutional Ownership

13F filings, quarter ended Jun 30, 2026
HoldersCAHAMRXZSTK
Held by institutions 87.4% 51.0% –
Institutions holding 1,493 310 –
Change in shares held, QoQ +2.8% +1.3% –
Institutions buying 712 182 –
Institutions selling 557 86 –
Buyers to sellers 1.28 2.12 –

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.

CAHAMRXZSTK
CAH 1.00 0.20 -0.02
AMRX 0.20 1.00 0.06
ZSTK -0.02 0.06 1.00

Add a Peer

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Frequently Asked Questions

Which is bigger, CAH, AMRX and ZSTK?

Cardinal Health (CAH) is the largest by market capitalisation: Cardinal Health (CAH) $59.16B, Amneal Pharmaceuticals (AMRX) $6.53B, ZeroStack (ZSTK) $28.09M.

Which stock is cheaper, CAH, AMRX and ZSTK?

Cardinal Health (CAH) trades on the lowest price-to-earnings ratio (Cardinal Health (CAH) 35.0x, Amneal Pharmaceuticals (AMRX) 41.5x, ZeroStack (ZSTK) -0.2x). On next year's consensus earnings, Amneal Pharmaceuticals (AMRX) is cheapest (Cardinal Health (CAH) 21.1x, Amneal Pharmaceuticals (AMRX) 21.1x). A lower multiple can reflect slower expected growth, so read it next to the growth figures.

Which company is growing faster?

ZeroStack (ZSTK) grew revenue fastest over the trailing twelve months: Cardinal Health (CAH) +14.2%, Amneal Pharmaceuticals (AMRX) +9.3%, ZeroStack (ZSTK) +27.3%.

Which company is more profitable?

Amneal Pharmaceuticals (AMRX) has the highest net margin (Cardinal Health (CAH) 0.7%, Amneal Pharmaceuticals (AMRX) 5.0%, ZeroStack (ZSTK) -444.3%). On return on invested capital, Cardinal Health (CAH) leads (Cardinal Health (CAH) 33.9%, Amneal Pharmaceuticals (AMRX) 17.4%, ZeroStack (ZSTK) -852.2%).

Which stock has performed better?

Over the past year Amneal Pharmaceuticals (AMRX) returned the most: Cardinal Health (CAH) +33.3%, Amneal Pharmaceuticals (AMRX) +88.9%, ZeroStack (ZSTK) -70.4%. Over five years, Cardinal Health (CAH) compounded fastest (Cardinal Health (CAH) +38.3%/yr, Amneal Pharmaceuticals (AMRX) +30.9%/yr, ZeroStack (ZSTK) -76.1%/yr). Returns are price only, before dividends.

Which pays a higher dividend?

Only one of these companies pays a dividend: Cardinal Health (CAH) 0.81%. Amneal Pharmaceuticals (AMRX) and ZeroStack (ZSTK) pays no regular dividend.

Which stock is riskier?

By one-year price volatility, Cardinal Health (CAH) has been the steadiest (Cardinal Health (CAH) 25.8%, Amneal Pharmaceuticals (AMRX) 34.2%, ZeroStack (ZSTK) 169.1%). Volatility measures how widely the price swings, not the risk of the business.

Which is the better stock, CAH, AMRX and ZSTK?

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