Arch Capital Group Ltd. vs SUN LIFE FINANCIAL INC, two Insurance stocks. A side-by-side on valuation, growth, margins, returns, and what each price is betting.
Arch Capital lives on underwriting discipline, pricing property and casualty risk so premiums clear losses and reserves prove out over the years. Sun Life earns its keep differently, running Canadian life and wealth books where returns come off the spread on long-term float. The valuation split is stark: Arch at 7.5 times earnings, Sun Life at 17.18. Return on equity favors Arch too, 20.14% against 14.84%, and Arch's 24.63% net margin tops Sun Life's 9.03% by a wide stretch. Book value tells the same story, 1.45 times for Arch versus 2.34 for Sun Life. Arch carries a 5.13% dividend; Sun Life's yield does not appear in these figures.
Comparison updated 2026-07-11.
| Metric | ACGL | SLF |
|---|---|---|
| Price | $101.01 | $79.94 |
| Market cap | $36.3B | $45.0B |
| Sector | Financial Services | Financial Services |
| Stage | Mature | Growth |
| P/E | 7.8 | 17.6 |
| P/B | 1.50 | 2.40 |
| P/S | 1.84 | 1.46 |
| Revenue growth | +9.2% | +18.1% |
| Net margin | 24.6% | 9.0% |
| Return on equity | 20.1% | 14.8% |
| Return on assets | 6.0% | 0.9% |
| Dividend yield | 5.0% | — |
| Debt / equity | 0.00 | 0.00 |
| Piotroski F (quality) | 8 / 9 | 8 / 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.