NAII vs TMO vs STE Stock Comparison

Natural Alternatives International, Thermo Fisher Scientific and Steris Prices as of Oct 23, 2026 Peers: Industry group
STE STERIS plc
$232.25 +10.6% 1M -4.0% 1Y
Market cap
$22.41B
P/E
27.8x
Revenue (TTM)
$6.04B
Div. yield
0.01%
Medical Devices Healthcare
6 wins

Head to Head

12 decided of 12

Steris leads on 6 of the 12 questions below (Steris 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.

QuestionNAIITMOSTELeader
Larger companyMarket capitalisation $6.99M $254.18B $22.41B TMO
Cheaper on earningsLower P/E, profitable companies only -0.3x 36.5x 27.8x STE
Cheaper on forward earningsLower price / next fiscal year consensus EPS — 26.1x 20.1x STE
Faster revenue growthRevenue growth, trailing twelve months +9.7% +7.2% +8.4% NAII
More profitableNet margin, trailing twelve months -14.5% 15.0% 13.3% TMO
Better return on capitalReturn on invested capital -24.9% 7.9% 9.3% STE
Less leveragedLower net debt / EBITDA -0.8x 3.5x 0.9x NAII
Higher dividend yieldTrailing dividend yield 0.00% 0.00% 0.01% STE
Better 1-year returnPrice return, last 12 months -56.1% +17.8% -4.0% TMO
Better 5-year returnAnnualised price return, 5 years -38.5%/yr +1.9%/yr -0.3%/yr TMO
Less volatileAnnualised volatility, 1 year 67.8% 29.8% 26.2% STE
Higher overall scoreMean of the five percentile scores vs peers 32/100 59/100 76/100 STE

Percentile Scorecard

NAIITMOSTE

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

AxisNAIITMOSTE
Valuation 30 #8 of 11 60 #93 of 228 84 #38 of 228
Growth 0 #11 of 11 35 #144 of 222 72 #63 of 222
Profitability 40 #7 of 11 83 #37 of 210 89 #25 of 210
Financial Health 58 #6 of 13 28 #174 of 241 64 #88 of 241
Shareholder Returns – 88 #18 of 138 74 #37 of 138
Overall 32 59 76
  • NAII ranked among 13 companies in Pharma Services
  • TMO ranked among 248 companies in Medical Devices and Diagnostics
  • STE 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

PeriodNAIITMOSTESPY
1 month -36.2%+1.2%+10.6% -1.0%
3 months -49.8%+18.6%+8.5% +2.9%
6 months -56.0%+43.5%+4.7% +6.4%
Year to date -67.0%+16.3%-8.4% +11.4%
1 year -56.1%+17.8%-4.0% +13.1%
3 years -80.1%+47.1%+6.9% +79.4%
3 years, per year -41.6%+13.7%+2.3% +21.5%
5 years -91.2%+10.1%-1.3% +67.7%
5 years, per year -38.5%+1.9%-0.3% +10.9%
10 years -91.3%+347.3%+239.7% +255.2%
10 years, per year -21.6%+16.2%+13.0% +13.5%

Risk

MeasureNAIITMOSTESPY
Volatility, 1Y 67.8%29.8%26.2% 12.7%
Downside volatility, 1Y 77.3%28.3%25.7% 12.7%
Beta vs S&P 500, 1Y 0.890.590.40 1.00
Return / volatility, 1Y -0.830.60-0.15 1.03
Max drawdown, 5Y -92.3%-41.5%-36.5% -25.4%
From 52-week high -75.6%-3.3%-13.5% -2.5%
52-week high $4.83$696.55$268.65 $779.14
52-week low $1.12$438.34$199.40 $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.

MultipleNAIITMOSTE
P/E now vs peer median -0.3xmedian 36.1x 35.9xmedian 30.7x 28.2xmedian 30.7x
P/S now vs peer median 0.0xmedian 2.7x 5.4xmedian 3.0x 3.8xmedian 3.0x
EV/EBITDA now vs peer median -1.3xmedian 37.4x 25.9xmedian 17.7x 14.7xmedian 17.7x
P/FCF now vs peer median -0.6xmedian 21.1x 34.0xmedian 23.7x 24.5xmedian 23.7x
P/B now vs peer median 0.1xmedian 2.9x 4.7xmedian 2.4x 3.1xmedian 2.4x
PEG now vs peer median 0.00median 2.05 4.27median 0.96 0.31median 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 monthsNAIITMOSTE
Revenue $142.52M $46.34B $6.04B
Gross profit $9.00M $18.91B $2.68B
Operating income -$18.75M $8.15B $1.14B
Net income -$20.70M $6.99B $808.10M
Free cash flow -$12.62M $7.32B $925.60M
R&D – $1.40B $115.10M
EPS (diluted) $-3.43 $18.78 $8.22
Cash & equivalents $7.39M $4.06B $482.30M
Total debt $63.29M $42.55B $1.89B
Shares (diluted) 6.03M 371.00M 97.90M
Enterprise value -$21.09M $233.20B $20.75B

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
MetricNAIITMOSTE
P/E -0.3x 35.9x 28.2x
P/FCF -0.6x 34.0x 24.5x
P/Operating cash flow -0.8x 27.6x 17.6x
P/S 0.0x 5.4x 3.8x
P/B 0.1x 4.7x 3.1x
P/Tangible book 0.1x 7.3x 4.0x
EV/EBITDA -1.3x 25.9x 14.7x
EV/EBIT -1.0x 35.3x 21.1x
EV/Revenue 0.1x 6.2x 4.0x
EV/FCF -1.5x 39.3x 26.0x
EV/Operating cash flow -2.1x 31.9x 18.7x
PEG (3Y EPS CAGR) 0.00 4.27 0.31

Growth

14 metrics
MetricNAIITMOSTE
Revenue growth (1Y) 9.7% 7.2% 8.4%
Revenue CAGR (3Y) -2.6% 2.1% 9.0%
Gross profit growth (1Y) -3.1% 6.2% 9.1%
Gross profit CAGR (3Y) -20.9% 3.0% 9.6%
Operating income growth (1Y) -116.5% 10.0% 23.1%
Operating income CAGR (3Y) -81.5% 6.7% 11.2%
Net income growth (1Y) -52.4% 6.2% 24.6%
Net income CAGR (3Y) -116.9% 6.9% 89.1%
EPS growth (1Y) -50.4% 7.8% 25.7%
EPS CAGR (3Y) -115.5% 8.4% 89.8%
Operating cash flow growth (1Y) -250.3% 18.9% 1.9%
Operating cash flow CAGR (3Y) -48.4% 5.4% 16.9%
Free cash flow growth (1Y) -644.3% 18.6% 1.8%
Free cash flow CAGR (3Y) -24.7% 7.7% 23.3%

Profitability

14 metrics
MetricNAIITMOSTE
Gross margin 6.3% 40.8% 44.4%
EBITDA margin -9.9% 23.9% 27.0%
Operating margin -13.2% 17.6% 18.9%
Pretax margin -14.2% 16.5% 18.0%
Net margin -14.5% 15.0% 13.3%
FCF margin -8.9% 15.8% 15.3%
Operating cash flow margin -6.3% 19.5% 21.3%
Return on equity -36.6% 13.4% 11.2%
Return on assets -14.7% 6.2% 7.5%
Return on invested capital -24.9% 7.9% 9.3%
Return on capital employed -18.2% 8.3% 12.1%
Asset turnover 1.0x 0.4x 0.6x
Cash conversion (OCF / net income) 0.4x 1.3x 1.6x
Stock comp / revenue 0.5% 0.7% 1.0%

Financial Health

11 metrics
MetricNAIITMOSTE
Debt / assets 14.8% 37.6% 17.6%
Debt / equity 0.4x 0.8x 0.3x
Net debt / EBITDA -0.8x 3.5x 0.9x
Debt / FCF -1.5x 5.8x 2.0x
Liabilities / assets 60.5% 53.4% 32.7%
Equity / assets 39.5% 46.6% 67.3%
Interest coverage – 5.6x 18.8x
Current ratio 1.7x 1.6x 1.9x
Quick ratio 0.5x 1.0x 1.2x
Cash ratio 0.2x 0.3x 0.4x
Altman Z-score 1.38 3.98 5.32

Shareholder Returns

7 metrics
MetricNAIITMOSTE
Dividend yield – 0.3% 1.1%
Net buyback yield 1.3% 2.0% 1.5%
Shareholder yield 1.3% 2.3% 2.6%
Payout ratio (earnings) – 9.5% 30.6%
Payout ratio (FCF) – 9.0% 26.7%
Dividend growth (1Y) – 8.5% 9.9%
Dividend CAGR (3Y) – 10.8% 9.7%

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.

ConsensusNAIITMOSTE
Forward P/E – 26.1xFY2026 20.1xFY2026
EPS, next fiscal year – $25.77FY2026 $11.56FY2026
EPS growth, next FY – +12.7%FY2026 +13.7%FY2026
EPS growth, the year after – +1.8% +13.1%
Revenue, next fiscal year – $49.99BFY2026 $6.62BFY2026
Revenue growth, next FY – +12.2%FY2026 +11.5%FY2026
Revenue growth, the year after – -2.9% -0.3%

Institutional Ownership

13F filings, quarter ended Jun 30, 2026
HoldersNAIITMOSTE
Held by institutions 10.5% 90.2% 97.1%
Institutions holding 24 2,621 829
Change in shares held, QoQ +6.0% +0.8% +1.1%
Institutions buying 8 1,141 405
Institutions selling 7 1,144 300
Buyers to sellers 1.14 1.00 1.35

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.

NAIITMOSTE
NAII 1.00 0.07 0.16
TMO 0.07 1.00 0.37
STE 0.16 0.37 1.00

Add a Peer

Largest companies in the same industry

Related Comparisons

Frequently Asked Questions

Which is bigger, NAII, TMO and STE?

Thermo Fisher Scientific (TMO) is the largest by market capitalisation: Natural Alternatives International (NAII) $6.99M, Thermo Fisher Scientific (TMO) $254.18B, Steris (STE) $22.41B.

Which stock is cheaper, NAII, TMO and STE?

Steris (STE) trades on the lowest price-to-earnings ratio (Natural Alternatives International (NAII) -0.3x, Thermo Fisher Scientific (TMO) 36.5x, Steris (STE) 27.8x). On next year's consensus earnings, Steris (STE) is cheapest (Thermo Fisher Scientific (TMO) 26.1x, Steris (STE) 20.1x). 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%, Thermo Fisher Scientific (TMO) +7.2%, Steris (STE) +8.4%.

Which company is more profitable?

Thermo Fisher Scientific (TMO) has the highest net margin (Natural Alternatives International (NAII) -14.5%, Thermo Fisher Scientific (TMO) 15.0%, Steris (STE) 13.3%). On return on invested capital, Steris (STE) leads (Natural Alternatives International (NAII) -24.9%, Thermo Fisher Scientific (TMO) 7.9%, Steris (STE) 9.3%).

Which stock has performed better?

Over the past year Thermo Fisher Scientific (TMO) returned the most: Natural Alternatives International (NAII) -56.1%, Thermo Fisher Scientific (TMO) +17.8%, Steris (STE) -4.0%. Over five years, Thermo Fisher Scientific (TMO) compounded fastest (Natural Alternatives International (NAII) -38.5%/yr, Thermo Fisher Scientific (TMO) +1.9%/yr, Steris (STE) -0.3%/yr). Returns are price only, before dividends.

Which pays a higher dividend?

Steris (STE) has the highest dividend yield: Natural Alternatives International (NAII) 0.00%, Thermo Fisher Scientific (TMO) 0.00%, Steris (STE) 0.01%. Natural Alternatives International (NAII) pays no regular dividend.

Which stock is riskier?

By one-year price volatility, Steris (STE) has been the steadiest (Natural Alternatives International (NAII) 67.8%, Thermo Fisher Scientific (TMO) 29.8%, Steris (STE) 26.2%). Volatility measures how widely the price swings, not the risk of the business.

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

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