NAII vs ZTS vs TMO Stock Comparison

Natural Alternatives International, Zoetis and Thermo Fisher Scientific Prices as of Oct 23, 2026 Peers: Industry group
ZTS Zoetis Inc.
$80.99 +13.1% 1M -44.7% 1Y
Market cap
$33.78B
P/E
12.9x
Revenue (TTM)
$9.52B
Div. yield
0.03%
Animal Health Healthcare
6 wins

Head to Head

12 decided of 12

Zoetis leads on 6 of the 12 questions below (Zoetis 6, Thermo Fisher Scientific 4, Natural Alternatives International 2). Which ones matter depends on what you are buying for; a cheap multiple and slow growth often come together.

QuestionNAIIZTSTMOLeader
Larger companyMarket capitalisation $6.99M $33.78B $254.18B TMO
Cheaper on earningsLower P/E, profitable companies only -0.3x 12.9x 36.5x ZTS
Cheaper on forward earningsLower price / next fiscal year consensus EPS — 13.8x 26.1x ZTS
Faster revenue growthRevenue growth, trailing twelve months +9.7% +1.5% +7.2% NAII
More profitableNet margin, trailing twelve months -14.5% 27.5% 15.0% ZTS
Better return on capitalReturn on invested capital -24.9% 23.4% 7.9% ZTS
Less leveragedLower net debt / EBITDA -0.8x 1.8x 3.5x NAII
Higher dividend yieldTrailing dividend yield 0.00% 0.03% 0.00% ZTS
Better 1-year returnPrice return, last 12 months -56.1% -44.7% +17.8% TMO
Better 5-year returnAnnualised price return, 5 years -38.5%/yr -17.2%/yr +1.9%/yr TMO
Less volatileAnnualised volatility, 1 year 67.8% 40.5% 29.8% TMO
Higher overall scoreMean of the five percentile scores vs peers 32/100 71/100 59/100 ZTS

Percentile Scorecard

NAIIZTSTMO

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

AxisNAIIZTSTMO
Valuation 30 #8 of 11 88 #79 of 624 60 #93 of 228
Growth 0 #11 of 11 51 #295 of 603 35 #144 of 222
Profitability 40 #7 of 11 96 #22 of 555 83 #37 of 210
Financial Health 58 #6 of 13 33 #439 of 657 28 #174 of 241
Shareholder Returns – 89 #41 of 370 88 #18 of 138
Overall 32 71 59
  • NAII ranked among 13 companies in Pharma Services
  • ZTS ranked among 671 companies in Pharmaceuticals and Biotechnology
  • TMO ranked among 248 companies in Medical Devices and Diagnostics

Price Performance

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

Returns

PeriodNAIIZTSTMOSPY
1 month -36.2%+13.1%+1.2% -1.0%
3 months -49.8%+7.5%+18.6% +2.9%
6 months -56.0%-30.7%+43.5% +6.4%
Year to date -67.0%-35.6%+16.3% +11.4%
1 year -56.1%-44.7%+17.8% +13.1%
3 years -80.1%-51.5%+47.1% +79.4%
3 years, per year -41.6%-21.5%+13.7% +21.5%
5 years -91.2%-61.2%+10.1% +67.7%
5 years, per year -38.5%-17.2%+1.9% +10.9%
10 years -91.3%+59.0%+347.3% +255.2%
10 years, per year -21.6%+4.7%+16.2% +13.5%

Risk

MeasureNAIIZTSTMOSPY
Volatility, 1Y 67.8%40.5%29.8% 12.7%
Downside volatility, 1Y 77.3%49.2%28.3% 12.7%
Beta vs S&P 500, 1Y 0.890.530.59 1.00
Return / volatility, 1Y -0.83-1.100.60 1.03
Max drawdown, 5Y -92.3%-72.0%-41.5% -25.4%
From 52-week high -75.6%-45.1%-3.3% -2.5%
52-week high $4.83$147.53$696.55 $779.14
52-week low $1.12$69.12$438.34 $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.

MultipleNAIIZTSTMO
P/E now vs peer median -0.3xmedian 36.1x 12.9xmedian 17.2x 35.9xmedian 30.7x
P/S now vs peer median 0.0xmedian 2.7x 3.5xmedian 8.8x 5.4xmedian 3.0x
EV/EBITDA now vs peer median -1.3xmedian 37.4x 10.1xmedian 16.0x 25.9xmedian 17.7x
P/FCF now vs peer median -0.6xmedian 21.1x 14.5xmedian 17.8x 34.0xmedian 23.7x
P/B now vs peer median 0.1xmedian 2.9x 10.7xmedian 2.1x 4.7xmedian 2.4x
PEG now vs peer median 0.00median 2.05 1.37median 0.32 4.27median 0.96

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 monthsNAIIZTSTMO
Revenue $142.52M $9.52B $46.34B
Gross profit $9.00M $6.81B $18.91B
Operating income -$18.75M $3.59B $8.15B
Net income -$20.70M $2.62B $6.99B
Free cash flow -$12.62M $2.32B $7.32B
R&D – $722.00M $1.40B
EPS (diluted) $-3.43 $6.26 $18.78
Cash & equivalents $7.39M $1.48B $4.06B
Total debt $63.29M $34.20B $42.55B
Shares (diluted) 6.03M 417.70M 371.00M
Enterprise value -$21.09M $25.62B $233.20B

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
MetricNAIIZTSTMO
P/E -0.3x 12.9x 35.9x
P/FCF -0.6x 14.5x 34.0x
P/Operating cash flow -0.8x 11.8x 27.6x
P/S 0.0x 3.5x 5.4x
P/B 0.1x 10.7x 4.7x
P/Tangible book 0.1x 15.0x 7.3x
EV/EBITDA -1.3x 10.1x 25.9x
EV/EBIT -1.0x 11.4x 35.3x
EV/Revenue 0.1x 4.3x 6.2x
EV/FCF -1.5x 17.7x 39.3x
EV/Operating cash flow -2.1x 14.4x 31.9x
PEG (3Y EPS CAGR) 0.00 1.37 4.27

Growth

14 metrics
MetricNAIIZTSTMO
Revenue growth (1Y) 9.7% 1.5% 7.2%
Revenue CAGR (3Y) -2.6% 5.0% 2.1%
Gross profit growth (1Y) -3.1% 1.8% 6.2%
Gross profit CAGR (3Y) -20.9% 5.7% 3.0%
Operating income growth (1Y) -116.5% -0.1% 10.0%
Operating income CAGR (3Y) -81.5% 5.2% 6.7%
Net income growth (1Y) -52.4% 0.6% 6.2%
Net income CAGR (3Y) -116.9% 5.7% 6.9%
EPS growth (1Y) -50.4% 7.7% 7.8%
EPS CAGR (3Y) -115.5% 9.4% 8.4%
Operating cash flow growth (1Y) -250.3% -4.6% 18.9%
Operating cash flow CAGR (3Y) -48.4% 12.4% 5.4%
Free cash flow growth (1Y) -644.3% 2.1% 18.6%
Free cash flow CAGR (3Y) -24.7% 21.7% 7.7%

Profitability

14 metrics
MetricNAIIZTSTMO
Gross margin 6.3% 71.5% 40.8%
EBITDA margin -9.9% 42.8% 23.9%
Operating margin -13.2% 37.7% 17.6%
Pretax margin -14.2% 34.4% 16.5%
Net margin -14.5% 27.5% 15.0%
FCF margin -8.9% 24.3% 15.8%
Operating cash flow margin -6.3% 29.8% 19.5%
Return on equity -36.6% 82.0% 13.4%
Return on assets -14.7% 17.3% 6.2%
Return on invested capital -24.9% 23.4% 7.9%
Return on capital employed -18.2% 27.5% 8.3%
Asset turnover 1.0x 0.6x 0.4x
Cash conversion (OCF / net income) 0.4x 1.1x 1.3x
Stock comp / revenue 0.5% 1.0% 0.7%

Financial Health

11 metrics
MetricNAIIZTSTMO
Debt / assets 14.8% 60.0% 37.6%
Debt / equity 0.4x 2.9x 0.8x
Net debt / EBITDA -0.8x 1.8x 3.5x
Debt / FCF -1.5x 3.9x 5.8x
Liabilities / assets 60.5% 79.1% 53.4%
Equity / assets 39.5% 20.9% 46.6%
Interest coverage – 15.1x 5.6x
Current ratio 1.7x 3.1x 1.6x
Quick ratio 0.5x 1.6x 1.0x
Cash ratio 0.2x 0.8x 0.3x
Altman Z-score 1.38 4.81 3.98

Shareholder Returns

7 metrics
MetricNAIIZTSTMO
Dividend yield – 2.6% 0.3%
Net buyback yield 1.3% 10.9% 2.0%
Shareholder yield 1.3% 13.4% 2.3%
Payout ratio (earnings) – 34.0% 9.5%
Payout ratio (FCF) – 38.4% 9.0%
Dividend growth (1Y) – 6.1% 8.5%
Dividend CAGR (3Y) – 10.9% 10.8%

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.

ConsensusNAIIZTSTMO
Forward P/E – 13.8xFY2026 26.1xFY2026
EPS, next fiscal year – $5.86FY2026 $25.77FY2026
EPS growth, next FY – -8.6%FY2026 +12.7%FY2026
EPS growth, the year after – +13.5% +1.8%
Revenue, next fiscal year – $9.56BFY2026 $49.99BFY2026
Revenue growth, next FY – +0.9%FY2026 +12.2%FY2026
Revenue growth, the year after – -7.6% -2.9%

Institutional Ownership

13F filings, quarter ended Jun 30, 2026
HoldersNAIIZTSTMO
Held by institutions 10.5% 94.7% 90.2%
Institutions holding 24 1,417 2,621
Change in shares held, QoQ +6.0% -2.6% +0.8%
Institutions buying 8 674 1,141
Institutions selling 7 582 1,144
Buyers to sellers 1.14 1.16 1.00

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.

NAIIZTSTMO
NAII 1.00 0.03 0.07
ZTS 0.03 1.00 0.23
TMO 0.07 0.23 1.00

Add a Peer

Largest companies in the same industry

Related Comparisons

Frequently Asked Questions

Which is bigger, NAII, ZTS and TMO?

Thermo Fisher Scientific (TMO) is the largest by market capitalisation: Natural Alternatives International (NAII) $6.99M, Zoetis (ZTS) $33.78B, Thermo Fisher Scientific (TMO) $254.18B.

Which stock is cheaper, NAII, ZTS and TMO?

Zoetis (ZTS) trades on the lowest price-to-earnings ratio (Natural Alternatives International (NAII) -0.3x, Zoetis (ZTS) 12.9x, Thermo Fisher Scientific (TMO) 36.5x). On next year's consensus earnings, Zoetis (ZTS) is cheapest (Zoetis (ZTS) 13.8x, Thermo Fisher Scientific (TMO) 26.1x). A lower multiple can reflect slower expected growth, so read it next to the growth figures.

Which company is growing faster?

Natural Alternatives International (NAII) grew revenue fastest over the trailing twelve months: Natural Alternatives International (NAII) +9.7%, Zoetis (ZTS) +1.5%, Thermo Fisher Scientific (TMO) +7.2%.

Which company is more profitable?

Zoetis (ZTS) has the highest net margin (Natural Alternatives International (NAII) -14.5%, Zoetis (ZTS) 27.5%, Thermo Fisher Scientific (TMO) 15.0%). On return on invested capital, Zoetis (ZTS) leads (Natural Alternatives International (NAII) -24.9%, Zoetis (ZTS) 23.4%, Thermo Fisher Scientific (TMO) 7.9%).

Which stock has performed better?

Over the past year Thermo Fisher Scientific (TMO) returned the most: Natural Alternatives International (NAII) -56.1%, Zoetis (ZTS) -44.7%, Thermo Fisher Scientific (TMO) +17.8%. Over five years, Thermo Fisher Scientific (TMO) compounded fastest (Natural Alternatives International (NAII) -38.5%/yr, Zoetis (ZTS) -17.2%/yr, Thermo Fisher Scientific (TMO) +1.9%/yr). Returns are price only, before dividends.

Which pays a higher dividend?

Zoetis (ZTS) has the highest dividend yield: Natural Alternatives International (NAII) 0.00%, Zoetis (ZTS) 0.03%, Thermo Fisher Scientific (TMO) 0.00%. Natural Alternatives International (NAII) pays no regular dividend.

Which stock is riskier?

By one-year price volatility, Thermo Fisher Scientific (TMO) has been the steadiest (Natural Alternatives International (NAII) 67.8%, Zoetis (ZTS) 40.5%, Thermo Fisher Scientific (TMO) 29.8%). Volatility measures how widely the price swings, not the risk of the business.

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

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 6. 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.