TMO vs WST Comparison: AI Score, Valuation, Performance and Upside
Compare Thermo Fisher Scientific and West Pharmaceutical Services by bioproduction revenue, drug delivery component growth, biopharma customer concentration, margin profile, and which life science services company offers better value.
Use this Thermo Fisher vs West Pharmaceutical comparison to evaluate the key differences across valuation, growth, profitability, and risk before making an investment decision.
TMO holds the edge across 3 of 5 key metrics in this comparison. TMO leads on both 1-year return (+19.63%) and forward P/E quality (19.54x vs 37.24x for WST), a relatively favorable combination of momentum and valuation. WST leads on both revenue growth (21.00%) and operating margin (21.70%), suggesting a stronger fundamental setup on both dimensions. Analyst consensus implies meaningfully more upside for TMO (+11.04%) than for WST (+6.63%).
| Metric | TMO | WST |
|---|---|---|
| AI score | 52.0 | 55.2 |
| AI rank | #391 | #282 |
| Latest close | $568.26 | $328.20 |
| 1M return | +15.45% | -3.59% |
| 6M return | -9.22% | +38.68% |
| 1Y return | +19.63% | +17.59% |
How much would $10,000 be worth today if invested at the start of each period, with all dividends reinvested?
| Period | TMO | WST |
|---|---|---|
| 1Y ago | $11.88K (+18.8%) started 2025-07-25 | $12.45K (+24.5%) started 2025-07-25 |
| 5Y ago | $10.94K (+9.4%) started 2021-07-26 | $8.86K (-11.4%) started 2021-07-26 |
| 10Y ago | $37.98K (+279.8%) started 2016-07-25 | $45.22K (+352.2%) started 2016-07-25 |
Hypothetical — past performance does not guarantee future results.
| Metric | TMO | WST |
|---|---|---|
| Market cap | $197.88B | $25.31B |
| Trailing P/E | 29.24 | 47.83 |
| Forward P/E | 19.54 | 37.24 |
| Price/Sales | 3.54 | 5.57 |
| EV/Revenue | 5.26 | 7.79 |
| Analyst target | $591.27 | $382.00 |
| Target upside | +11.04% | +6.63% |
| Metric | TMO | WST |
|---|---|---|
| Revenue growth | 6.20% | 21.00% |
| Earnings growth | 11.30% | 56.10% |
| EPS growth | +11.30% | +56.10% |
| FCF margin | +12.21% | +8.56% |
| Operating margin | 17.89% | 21.70% |
| Profit margin | 15.15% | 16.85% |
| ROIC proxy | 13.52% | 19.13% |
| Return on equity | 13.52% | 19.13% |
| Dividend yield | 0.35% | 0.25% |
| Beta | 0.87 | 1.16 |
| Debt/equity | 82.90 | 10.73 |
| Current ratio | 1.53 | 2.71 |
| Quick ratio | 0.97 | 1.81 |
Lower drawdown and smaller single-period drops generally indicate a smoother ride, though they do not guarantee lower future risk.
| Period | Metric | TMO | WST |
|---|---|---|---|
| 1Y | Growth | +18.80% | +24.55% |
| CAGR | +18.87% | +24.63% | |
| Sharpe ratio | 0.57 | 0.68 | |
| Max drawdown | 31.45% | 24.83% | |
| Max daily drop | 9.20% | 7.67% | |
| Max wkly drop | 11.02% | 15.30% | |
| 5Y | Growth | +8.40% | -12.26% |
| CAGR | +1.63% | -2.58% | |
| Sharpe ratio | 0.03 | 0.04 | |
| Max drawdown | 41.02% | 59.29% | |
| Max daily drop | 9.20% | 38.22% | |
| Max wkly drop | 13.18% | 39.71% | |
| 10Y | Growth | +270.75% | +337.47% |
| CAGR | +14.00% | +15.91% | |
| Sharpe ratio | 0.46 | 0.48 | |
| Max drawdown | 41.02% | 59.29% | |
| Max daily drop | 9.20% | 38.22% | |
| Max wkly drop | 13.18% | 39.71% |
| Category | TMO | WST |
|---|---|---|
| Company | TMO | WST |
| Sector | Healthcare | Healthcare |
| Industry | Diagnostics & Research | Medical Instruments & Supplies |
| Core business | N/A | N/A |
| Investor focus | N/A | N/A |
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