NAII vs VTRS vs ZTS Stock Comparison

Natural Alternatives International, Viatris and Zoetis Prices as of Nov 2, 2026 Peers: Industry group
VTRS Viatris Inc
$18.67 +6.1% 1M +80.2% 1Y
Market cap
$22.24B
P/E
–
Revenue (TTM)
$14.74B
Div. yield
–
Generic Drugs Healthcare
4 wins
ZTS Zoetis Inc.
$83.18 +19.4% 1M -42.3% 1Y
Market cap
$36.44B
P/E
13.9x
Revenue (TTM)
$9.52B
Div. yield
0.02%
Animal Health Healthcare
4 wins

Head to Head

10 decided of 12

Zoetis leads on 4 of the 12 questions below (Zoetis 4, Viatris 4, Natural Alternatives International 2). Which ones matter depends on what you are buying for; a cheap multiple and slow growth often come together.

QuestionNAIIVTRSZTSLeader
Larger companyMarket capitalisation $6.45M $22.24B $36.44B ZTS
Cheaper on earningsLower P/E, profitable companies only -0.3x -54.1x 13.9x –
Cheaper on forward earningsLower price / next fiscal year consensus EPS — 7.2x 14.2x VTRS
Faster revenue growthRevenue growth, trailing twelve months +9.7% +4.4% +1.5% NAII
More profitableNet margin, trailing twelve months -14.5% -2.8% 27.5% ZTS
Better return on capitalReturn on invested capital -24.9% -0.2% 23.4% ZTS
Less leveragedLower net debt / EBITDA -0.8x 4.6x 1.8x NAII
Higher dividend yieldTrailing dividend yield 0.00% 0.00% 0.02% –
Better 1-year returnPrice return, last 12 months -60.8% +80.2% -42.3% VTRS
Better 5-year returnAnnualised price return, 5 years -39.2%/yr +6.1%/yr -17.0%/yr VTRS
Less volatileAnnualised volatility, 1 year 68.0% 32.5% 41.0% VTRS
Higher overall scoreMean of the five percentile scores vs peers 32/100 67/100 72/100 ZTS

Percentile Scorecard

NAIIVTRSZTS

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

AxisNAIIVTRSZTS
Valuation 30 #8 of 11 94 #41 of 623 87 #80 of 623
Growth 0 #11 of 11 49 #310 of 601 51 #294 of 601
Profitability 40 #7 of 11 82 #103 of 553 96 #23 of 553
Financial Health 58 #6 of 13 23 #504 of 654 34 #430 of 654
Shareholder Returns – 86 #52 of 367 89 #41 of 367
Overall 32 67 72
  • NAII ranked among 13 companies in Pharma Services
  • VTRS ranked among 671 companies in Pharmaceuticals and Biotechnology
  • ZTS 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

PeriodNAIIVTRSZTSSPY
1 month -27.7%+6.1%+19.4% -2.3%
3 months -52.9%+5.9%+7.9% -0.7%
6 months -59.9%+22.8%-26.2% +4.8%
Year to date -70.1%+50.0%-33.9% +10.3%
1 year -60.8%+80.2%-42.3% +10.3%
3 years -82.5%+101.4%-48.7% +73.0%
3 years, per year -44.1%+26.3%-20.0% +20.1%
5 years -91.7%+34.3%-60.6% +61.9%
5 years, per year -39.2%+6.1%-17.0% +10.1%
10 years -91.3%-49.1%+66.0% +258.6%
10 years, per year -21.6%-6.5%+5.2% +13.6%

Risk

MeasureNAIIVTRSZTSSPY
Volatility, 1Y 68.0%32.5%41.0% 12.8%
Downside volatility, 1Y 77.0%29.7%49.5% 12.8%
Beta vs S&P 500, 1Y 0.870.710.48 1.00
Return / volatility, 1Y -0.892.47-1.03 0.80
Max drawdown, 5Y -92.6%-52.9%-72.0% -25.4%
From 52-week high -77.8%-2.8%-42.4% -3.5%
52-week high $4.83$19.20$144.35 $779.14
52-week low $1.07$10.11$69.12 $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.

MultipleNAIIVTRSZTS
P/E now vs peer median -0.3xmedian 35.0x -52.9xmedian 17.4x 13.3xmedian 17.4x
P/S now vs peer median 0.0xmedian 2.5x 1.5xmedian 8.9x 3.6xmedian 8.9x
EV/EBITDA now vs peer median -1.3xmedian 28.8x 12.5xmedian 17.0x 10.3xmedian 17.0x
P/FCF now vs peer median -0.5xmedian 20.5x 11.0xmedian 21.4x 14.9xmedian 21.4x
P/B now vs peer median 0.1xmedian 2.7x 1.5xmedian 2.1x 10.9xmedian 2.1x
PEG now vs peer median 0.00median 1.94 1.73median 0.35 1.41median 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 monthsNAIIVTRSZTS
Revenue $142.52M $14.74B $9.52B
Gross profit $9.00M $5.13B $6.81B
Operating income -$18.75M -$87.30M $3.59B
Net income -$20.70M -$410.70M $2.62B
Free cash flow -$12.62M $1.95B $2.32B
R&D – $1.02B $722.00M
EPS (diluted) $-3.43 $-0.35 $6.26
Cash & equivalents $7.39M $886.50M $1.48B
Total debt $18.69M $13.35B $9.05B
Shares (diluted) 6.03M 1.16B 417.70M
Enterprise value -$21.63M $17.25B $28.29B

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
MetricNAIIVTRSZTS
P/E -0.3x -52.9x 13.3x
P/FCF -0.5x 11.0x 14.9x
P/Operating cash flow -0.7x 9.2x 12.1x
P/S 0.0x 1.5x 3.6x
P/B 0.1x 1.5x 10.9x
P/Tangible book 0.1x 36.8x 15.4x
EV/EBITDA -1.3x 12.5x 10.3x
EV/EBIT -0.9x -388.4x 11.7x
EV/Revenue 0.1x 2.3x 4.4x
EV/FCF -1.4x 17.3x 18.1x
EV/Operating cash flow -2.0x 14.5x 14.7x
PEG (3Y EPS CAGR) 0.00 1.73 1.41

Growth

14 metrics
MetricNAIIVTRSZTS
Revenue growth (1Y) 9.7% 4.4% 1.5%
Revenue CAGR (3Y) -2.6% -1.9% 5.0%
Gross profit growth (1Y) -3.1% -0.7% 1.8%
Gross profit CAGR (3Y) -20.9% -6.0% 5.7%
Operating income growth (1Y) -116.5% 96.6% -0.1%
Operating income CAGR (3Y) -81.5% -27.6% 5.2%
Net income growth (1Y) -52.4% 88.2% 0.6%
Net income CAGR (3Y) -116.9% -30.5% 5.7%
EPS growth (1Y) -50.4% 88.1% 7.7%
EPS CAGR (3Y) -115.5% -30.6% 9.4%
Operating cash flow growth (1Y) -250.3% 12.9% -4.6%
Operating cash flow CAGR (3Y) -48.4% -3.0% 12.4%
Free cash flow growth (1Y) -644.3% 11.6% 2.1%
Free cash flow CAGR (3Y) -24.7% -3.6% 21.7%

Profitability

14 metrics
MetricNAIIVTRSZTS
Gross margin 6.3% 34.8% 71.5%
EBITDA margin -9.9% 18.4% 42.8%
Operating margin -13.2% -0.6% 37.7%
Pretax margin -14.2% -4.5% 34.4%
Net margin -14.5% -2.8% 27.5%
FCF margin -8.9% 13.3% 24.3%
Operating cash flow margin -6.3% 15.8% 29.8%
Return on equity -36.6% -2.8% 82.0%
Return on assets -14.7% -1.1% 17.3%
Return on invested capital -24.9% -0.2% 23.4%
Return on capital employed -18.2% -0.3% 27.5%
Asset turnover 1.0x 0.4x 0.6x
Cash conversion (OCF / net income) 0.4x -5.7x 1.1x
Stock comp / revenue 0.5% 1.2% 1.0%

Financial Health

11 metrics
MetricNAIIVTRSZTS
Debt / assets 14.8% 38.1% 60.0%
Debt / equity 0.4x 0.9x 2.9x
Net debt / EBITDA -0.8x 4.6x 1.8x
Debt / FCF -1.5x 6.8x 3.9x
Liabilities / assets 60.5% 59.3% 79.1%
Equity / assets 39.5% 40.7% 20.9%
Interest coverage – -0.2x 15.1x
Current ratio 1.7x 1.6x 3.1x
Quick ratio 0.5x 0.7x 1.6x
Cash ratio 0.2x 0.1x 0.8x
Altman Z-score 1.38 1.15 4.85

Shareholder Returns

7 metrics
MetricNAIIVTRSZTS
Dividend yield – 2.6% 2.5%
Net buyback yield 1.4% 1.4% 10.6%
Shareholder yield 1.4% 4.0% 13.1%
Payout ratio (earnings) – – 34.0%
Payout ratio (FCF) – – 38.4%
Dividend growth (1Y) – – 6.1%
Dividend CAGR (3Y) – – 10.9%

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.

ConsensusNAIIVTRSZTS
Forward P/E – 7.2xFY2026 14.2xFY2026
EPS, next fiscal year – $2.62FY2026 $5.86FY2026
EPS growth, next FY – +11.5%FY2026 -8.6%FY2026
EPS growth, the year after – -1.5% +13.0%
Revenue, next fiscal year – $15.31BFY2026 $9.57BFY2026
Revenue growth, next FY – +7.0%FY2026 +1.0%FY2026
Revenue growth, the year after – -4.8% -7.9%

Institutional Ownership

13F filings, quarter ended Jun 30, 2026
HoldersNAIIVTRSZTS
Held by institutions 10.5% 89.9% 94.7%
Institutions holding 24 1,031 1,419
Change in shares held, QoQ +6.0% +5.6% -2.6%
Institutions buying 8 489 675
Institutions selling 7 318 583
Buyers to sellers 1.14 1.54 1.16

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.

NAIIVTRSZTS
NAII 1.00 0.08 0.03
VTRS 0.08 1.00 -0.02
ZTS 0.03 -0.02 1.00

Add a Peer

Largest companies in the same industry

Related Comparisons

Frequently Asked Questions

Which is bigger, NAII, VTRS and ZTS?

Zoetis (ZTS) is the largest by market capitalisation: Natural Alternatives International (NAII) $6.45M, Viatris (VTRS) $22.24B, Zoetis (ZTS) $36.44B.

Which company is growing faster?

Natural Alternatives International (NAII) grew revenue fastest over the trailing twelve months: Natural Alternatives International (NAII) +9.7%, Viatris (VTRS) +4.4%, Zoetis (ZTS) +1.5%.

Which company is more profitable?

Zoetis (ZTS) has the highest net margin (Natural Alternatives International (NAII) -14.5%, Viatris (VTRS) -2.8%, Zoetis (ZTS) 27.5%). On return on invested capital, Zoetis (ZTS) leads (Natural Alternatives International (NAII) -24.9%, Viatris (VTRS) -0.2%, Zoetis (ZTS) 23.4%).

Which stock has performed better?

Over the past year Viatris (VTRS) returned the most: Natural Alternatives International (NAII) -60.8%, Viatris (VTRS) +80.2%, Zoetis (ZTS) -42.3%. Over five years, Viatris (VTRS) compounded fastest (Natural Alternatives International (NAII) -39.2%/yr, Viatris (VTRS) +6.1%/yr, Zoetis (ZTS) -17.0%/yr). Returns are price only, before dividends.

Which pays a higher dividend?

Only one of these companies pays a dividend: Natural Alternatives International (NAII) 0.00%, Viatris (VTRS) 0.00%, Zoetis (ZTS) 0.02%. Natural Alternatives International (NAII) and Viatris (VTRS) pays no regular dividend.

Which stock is riskier?

By one-year price volatility, Viatris (VTRS) has been the steadiest (Natural Alternatives International (NAII) 68.0%, Viatris (VTRS) 32.5%, Zoetis (ZTS) 41.0%). Volatility measures how widely the price swings, not the risk of the business.

Which is the better stock, NAII, VTRS and ZTS?

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