Arch Capital Group Ltd.

What they do

Arch Capital writes specialty lines of property, casualty, and mortgage insurance and reinsurance through subsidiaries in Bermuda, the U.S., Europe, Canada, and Australia. The company focuses on disciplined risk selection across its three segments: insurance, reinsurance, and mortgage. It operates as part of the S&P 500 index.

Revenue drivers

• Insurance Segment — Writes specialty insurance including E&S casualty, construction, national accounts, and London market lines; reported $27 million underwriting income in Q2 2026.
• Reinsurance Segment — Writes property and casualty reinsurance; contributed $410 million underwriting income in Q2 2026 with net premiums written of $1.8 billion.
• Mortgage Segment — Provides mortgage insurance; generated $220 million underwriting income in Q2 2026.

Recent performance

For Q2 2026, Arch reported net income available to common shareholders of $1.0 billion, or $3.00 per diluted share, down from $1.2 billion, or $3.23 per share, in Q2 2025. After-tax operating income was $893 million, or $2.56 per share, versus $979 million a year earlier. The combined ratio was 83.5%, with an underlying combined ratio of 82.5%. Catastrophe losses were $201 million pre-tax, and prior-year reserve development was favorable at $165 million. Book value per share rose 2.8% in the quarter to $68.04.

Strategy

Management emphasizes disciplined cycle management, focusing on risk selection and allocating capital to lines with attractive returns. The company grew casualty-focused lines such as E&S, construction, and national accounts, while reducing exposure in middle market commercial program business from the Allianz acquisition and cutting E&S property due to rate pressure. In reinsurance, it is writing new business selectively and adjusting participation where pricing does not meet thresholds. Arch also returned capital to shareholders, repurchasing 12.4 million shares for $1.2 billion in Q2 2026, and through H1 repurchased approximately 94% of net income.

Risks

• Competitive market conditions — Softening in certain insurance and reinsurance lines, especially property, is pressuring pricing and underwriting margins.
• Catastrophe losses — The company's reinsurance and insurance segments are exposed to natural and man-made catastrophes; Q2 2026 included $201 million of such losses.
• Integration risks — The 2024 acquisition of Allianz's U.S. middle market business may not integrate as planned, and certain acquired programs were already not renewed.
• Investment and economic volatility — Changes in interest rates, credit markets, and foreign exchange could adversely affect investment performance and results.

Outlook

Management sees a constructive market overall despite increased competition and softening in certain lines. Growth opportunities remain in casualty-focused lines and select London market business. The company plans to continue disciplined capital allocation, investing in data and analytics, and returning capital to shareholders while maintaining a strong balance sheet.