NAII vs WST vs TMO Stock Comparison

Natural Alternatives International, West Pharmaceutical Services and Thermo Fisher Scientific Prices as of Oct 28, 2026 Peers: Industry group

Head to Head

11 decided of 12

Thermo Fisher Scientific leads on 5 of the 12 questions below (Thermo Fisher Scientific 5, West Pharmaceutical Services 5, Natural Alternatives International 1). Which ones matter depends on what you are buying for; a cheap multiple and slow growth often come together.

QuestionNAIIWSTTMOLeader
Larger companyMarket capitalisation $6.57M $29.58B $262.71B TMO
Cheaper on earningsLower P/E, profitable companies only -0.3x 52.4x 37.1x TMO
Cheaper on forward earningsLower price / next fiscal year consensus EPS — 42.3x 27.2x TMO
Faster revenue growthRevenue growth, trailing twelve months +9.7% +12.4% +8.3% WST
More profitableNet margin, trailing twelve months -14.5% 17.0% — WST
Better return on capitalReturn on invested capital -24.9% 16.9% — WST
Less leveragedLower net debt / EBITDA -0.8x -0.3x — NAII
Higher dividend yieldTrailing dividend yield 0.00% 0.00% 0.00% –
Better 1-year returnPrice return, last 12 months -59.4% +42.6% +26.4% WST
Better 5-year returnAnnualised price return, 5 years -38.0%/yr -1.2%/yr +2.2%/yr TMO
Less volatileAnnualised volatility, 1 year 67.8% 31.2% 29.8% TMO
Higher overall scoreMean of the five percentile scores vs peers 32/100 67/100 51/100 WST

Percentile Scorecard

NAIIWSTTMO

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

AxisNAIIWSTTMO
Valuation 30 #8 of 11 48 #118 of 227 49 #116 of 227
Growth 0 #11 of 11 39 #134 of 219 40 #132 of 219
Profitability 40 #7 of 11 92 #18 of 205 71 #61 of 205
Financial Health 58 #6 of 13 78 #52 of 237 –
Shareholder Returns – 78 #30 of 135 44 #76 of 135
Overall 32 67 51
  • NAII ranked among 13 companies in Pharma Services
  • WST ranked among 247 companies in Medical Devices and Diagnostics
  • TMO ranked among 247 companies in Medical Devices and Diagnostics

Price Performance

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

Returns

PeriodNAIIWSTTMOSPY
1 month -31.8%+7.6%+3.9% +0.9%
3 months -47.7%+19.8%+22.3% +5.9%
6 months -56.6%+36.9%+51.2% +8.5%
Year to date -67.6%+46.9%+21.6% +13.3%
1 year -59.4%+42.6%+26.4% +12.4%
3 years -80.7%+26.0%+63.4% +88.1%
3 years, per year -42.2%+8.0%+17.8% +23.5%
5 years -90.8%-6.0%+11.3% +68.2%
5 years, per year -38.0%-1.2%+2.2% +11.0%
10 years -91.2%+451.6%+378.8% +263.4%
10 years, per year -21.6%+18.6%+17.0% +13.8%

Risk

MeasureNAIIWSTTMOSPY
Volatility, 1Y 67.8%31.2%29.8% 12.7%
Downside volatility, 1Y 76.7%30.9%28.4% 12.7%
Beta vs S&P 500, 1Y 0.860.620.62 1.00
Return / volatility, 1Y -0.881.370.88 0.98
Max drawdown, 5Y -92.3%-59.6%-41.5% -25.4%
From 52-week high -76.0%0.0%0.0% -0.9%
52-week high $4.83$404.30$704.77 $779.14
52-week low $1.12$230.95$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.

MultipleNAIIWSTTMO
P/E now vs peer median -0.3xmedian 37.4x 50.7xmedian 28.8x 37.0xmedian 28.8x
P/S now vs peer median 0.0xmedian 2.7x 8.6xmedian 3.0x 5.5xmedian 3.0x
EV/EBITDA now vs peer median -1.3xmedian 39.5x 32.8xmedian 17.4x —median 17.4x
P/FCF now vs peer median -0.6xmedian 22.1x 65.1xmedian 25.7x 34.0xmedian 25.7x
P/B now vs peer median 0.1xmedian 3.4x 9.5xmedian 2.4x 4.8xmedian 2.4x
PEG now vs peer median 0.00median 2.08 10.51median 1.03 4.88median 1.03

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 monthsNAIIWSTTMO
Revenue $142.52M $3.33B $47.35B
Gross profit $9.00M $1.22B –
Operating income -$18.75M $680.40M $8.47B
Net income -$20.70M $564.90M $7.09B
Free cash flow -$12.62M $436.90M –
R&D – $74.40M $1.40B
EPS (diluted) $-3.43 $7.92 $19.06
Cash & equivalents $7.39M $435.80M $5.46B
Total debt $63.29M $202.90M –
Shares (diluted) 6.03M 71.30M 371.00M
Enterprise value -$21.51M $27.20B $262.71B

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
MetricNAIIWSTTMO
P/E -0.3x 50.7x 37.0x
P/FCF -0.6x 65.1x 34.0x
P/Operating cash flow -0.8x 43.0x 27.9x
P/S 0.0x 8.6x 5.5x
P/B 0.1x 9.5x 4.8x
P/Tangible book 0.1x 9.5x 7.1x
EV/EBITDA -1.3x 32.8x –
EV/EBIT -1.0x 41.5x –
EV/Revenue 0.1x 8.5x 5.5x
EV/FCF -1.4x 64.6x –
EV/Operating cash flow -2.1x 42.6x 27.9x
PEG (3Y EPS CAGR) 0.00 10.51 4.88

Growth

14 metrics
MetricNAIIWSTTMO
Revenue growth (1Y) 9.7% 12.4% 8.3%
Revenue CAGR (3Y) -2.6% 5.1% 2.9%
Gross profit growth (1Y) -3.1% 17.2% –
Gross profit CAGR (3Y) -20.9% 3.8% –
Operating income growth (1Y) -116.5% 17.0% 12.8%
Operating income CAGR (3Y) -81.5% 1.3% 7.2%
Net income growth (1Y) -52.4% 15.8% 7.9%
Net income CAGR (3Y) -116.9% 2.9% 6.2%
EPS growth (1Y) -50.4% 17.8% 9.7%
EPS CAGR (3Y) -115.5% 4.8% 7.6%
Operating cash flow growth (1Y) -250.3% -2.1% 21.9%
Operating cash flow CAGR (3Y) -48.4% -2.2% 4.5%
Free cash flow growth (1Y) -644.3% 27.0% –
Free cash flow CAGR (3Y) -24.7% 3.3% –

Profitability

14 metrics
MetricNAIIWSTTMO
Gross margin 6.3% 36.8% –
EBITDA margin -9.9% 25.9% –
Operating margin -13.2% 20.5% –
Pretax margin -14.2% 20.8% –
Net margin -14.5% 17.0% –
FCF margin -8.9% 13.1% –
Operating cash flow margin -6.3% 19.9% 19.7%
Return on equity -36.6% 18.4% 13.2%
Return on assets -14.7% 13.4% 6.2%
Return on invested capital -24.9% 16.9% –
Return on capital employed -18.2% 19.7% –
Asset turnover 1.0x 0.8x 0.4x
Cash conversion (OCF / net income) 0.4x 1.2x 1.3x
Stock comp / revenue 0.5% 1.0% –

Financial Health

11 metrics
MetricNAIIWSTTMO
Debt / assets 14.8% 5.0% –
Debt / equity 0.4x 0.1x –
Net debt / EBITDA -0.8x -0.3x –
Debt / FCF -1.5x 0.5x –
Liabilities / assets 60.5% 26.6% –
Equity / assets 39.5% 73.4% 47.9%
Interest coverage – 151.2x –
Current ratio 1.7x 2.8x 1.8x
Quick ratio 0.5x 1.8x –
Cash ratio 0.2x 0.7x –
Altman Z-score 1.38 19.02 –

Shareholder Returns

7 metrics
MetricNAIIWSTTMO
Dividend yield – 0.2% 0.3%
Net buyback yield 1.3% 1.5% –
Shareholder yield 1.3% 1.7% 0.3%
Payout ratio (earnings) – 11.0% –
Payout ratio (FCF) – 14.3% –
Dividend growth (1Y) – 3.8% –
Dividend CAGR (3Y) – 3.8% –

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.

ConsensusNAIIWSTTMO
Forward P/E – 42.3xFY2026 27.2xFY2026
EPS, next fiscal year – $9.56FY2026 $25.91FY2026
EPS growth, next FY – +31.1%FY2026 +13.3%FY2026
EPS growth, the year after – +10.6% +2.0%
Revenue, next fiscal year – $3.24BFY2026 $50.12BFY2026
Revenue growth, next FY – +5.6%FY2026 +12.5%FY2026
Revenue growth, the year after – +16.8% -2.8%

Institutional Ownership

13F filings, quarter ended Jun 30, 2026
HoldersNAIIWSTTMO
Held by institutions 10.5% 99.5% 90.2%
Institutions holding 24 833 2,623
Change in shares held, QoQ +6.0% -0.9% +0.8%
Institutions buying 8 448 1,143
Institutions selling 7 261 1,144
Buyers to sellers 1.14 1.72 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.

NAIIWSTTMO
NAII 1.00 0.10 0.07
WST 0.10 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, WST and TMO?

Thermo Fisher Scientific (TMO) is the largest by market capitalisation: Natural Alternatives International (NAII) $6.57M, West Pharmaceutical Services (WST) $29.58B, Thermo Fisher Scientific (TMO) $262.71B.

Which stock is cheaper, NAII, WST and TMO?

Thermo Fisher Scientific (TMO) trades on the lowest price-to-earnings ratio (Natural Alternatives International (NAII) -0.3x, West Pharmaceutical Services (WST) 52.4x, Thermo Fisher Scientific (TMO) 37.1x). On next year's consensus earnings, Thermo Fisher Scientific (TMO) is cheapest (West Pharmaceutical Services (WST) 42.3x, Thermo Fisher Scientific (TMO) 27.2x). A lower multiple can reflect slower expected growth, so read it next to the growth figures.

Which company is growing faster?

West Pharmaceutical Services (WST) grew revenue fastest over the trailing twelve months: Natural Alternatives International (NAII) +9.7%, West Pharmaceutical Services (WST) +12.4%, Thermo Fisher Scientific (TMO) +8.3%.

Which company is more profitable?

West Pharmaceutical Services (WST) has the highest net margin (Natural Alternatives International (NAII) -14.5%, West Pharmaceutical Services (WST) 17.0%). On return on invested capital, West Pharmaceutical Services (WST) leads (Natural Alternatives International (NAII) -24.9%, West Pharmaceutical Services (WST) 16.9%).

Which stock has performed better?

Over the past year West Pharmaceutical Services (WST) returned the most: Natural Alternatives International (NAII) -59.4%, West Pharmaceutical Services (WST) +42.6%, Thermo Fisher Scientific (TMO) +26.4%. Over five years, Thermo Fisher Scientific (TMO) compounded fastest (Natural Alternatives International (NAII) -38.0%/yr, West Pharmaceutical Services (WST) -1.2%/yr, Thermo Fisher Scientific (TMO) +2.2%/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%, West Pharmaceutical Services (WST) 0.00%, Thermo Fisher Scientific (TMO) 0.00%. Natural Alternatives International (NAII) and Thermo Fisher Scientific (TMO) 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%, West Pharmaceutical Services (WST) 31.2%, 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, WST 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, Thermo Fisher Scientific (TMO) 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.