NEWMARKET CORPORATION vs RPM International Inc.. A side-by-side on valuation, growth, margins, returns, and what each price is betting.
NewMarket and RPM International both earn strong returns from formulated chemistry, NewMarket 23.71% on equity in petroleum additives and RPM 21.15% in specialty coatings and sealants. NewMarket's 15.25% net margin nearly doubles RPM's 8.63%, the additive book simply richer per dollar of sales. RPM carries no net debt against NewMarket's modest 0.54, and trades pricier at 4.55 times book versus 4.25. On earnings they run close, 18.04 times against 21.67. Both pay dividends near each other, 1.42% and 1.12%, and both convert well to cash. Two of the healthiest names in the sector, distinguished mainly by margin depth.
Comparison updated 2026-07-11.
| Metric | NEU | RPM |
|---|---|---|
| Price | $762.64 | $105.13 |
| Market cap | $7.1B | $13.4B |
| Sector | Chemicals | Specialty Chemicals |
| Stage | Mature | Mature |
| Implied growth (priced in) | -4.1% | — |
| P/E | 17.4 | 20.3 |
| P/B | 4.10 | 4.26 |
| P/S | 2.64 | 1.74 |
| EV/EBITDA | 12.2 | 254.9 |
| Revenue growth | -3.5% | +5.9% |
| Gross margin | 33.0% | 39.5% |
| Operating margin | 21.4% | — |
| Net margin | 15.3% | 8.6% |
| Return on equity | 23.7% | 21.1% |
| Return on assets | 11.7% | 8.4% |
| Return on invested capital | 15.4% | — |
| FCF yield | 6.1% | 4.3% |
| Dividend yield | 1.5% | 1.2% |
| Debt / equity | 0.54 | 0.00 |
| Current ratio | 2.55 | 2.28 |
| Altman Z (solvency) | 4.19 | 7.85 |
| Piotroski F (quality) | 7 / 9 | 6 / 9 |
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The stronger value is highlighted per metric where one is strictly better on that single number; it is not an overall verdict on either company. For informational and research purposes only. Not investment advice. Not a recommendation to buy, sell, or hold any security. boothcheck is not a registered investment adviser. Past performance does not guarantee future results.