| Revenues | — | — | — |
| Net premiums earned | 15,100a | 12,440a | 9,679a |
| Net investment income | 1,495a | 1,023a | 496a |
| Net realized gains (losses) | 197a | -165a | -663a |
| Other underwriting income | 26a | 31a | 13a |
| Equity in net income of investments accounted for using the equity method | 580a | 278a | 115a |
| Other income (loss) | 42a | 27a | -27a |
| Total revenues | 17,440a | 13,634a | 9,613a |
| Expenses | — | — | — |
| Losses and loss adjustment expenses | -8,342a | -6,246a | -5,028a |
| Acquisition expenses | -2,651a | -2,312a | -1,740a |
| Other operating expenses | -1,472a | -1,301a | -1,128a |
| Corporate expenses | -200a | -102a | -95a |
| Amortization of intangible assets | -235a | -95a | -106a |
| Interest expense | -141a | -133a | -131a |
| Net foreign exchange losses (gains) | -75a | 60a | -102a |
| Total expenses | -12,966a | -10,249a | -8,126a |
| Income before income taxes and income (loss) from operating affiliates | 4,474a | 3,385a | 1,487a |
| Income taxes | — | — | — |
| Current tax expense (benefit) | 397a | 288a | 201a |
| Deferred tax expense (benefit) | -35a | -1,161a | -121a |
| Income tax expense (benefit) | 362a | -873a | 80a |
| Income (loss) from operating affiliates | 200a | 184a | 75a |
| Net income | 4,312a | 4,442a | 1,482a |
| Net (income) loss attributable to noncontrolling interests | | 1a | -6a |
| Net income available to Arch | 4,312a | 4,443a | 1,476a |
| Preferred dividends | -40a | -40a | -40a |
| Net income available to Arch common shareholders | 4,272a | 4,403a | 1,436a |