Summary of ACGLO Q1 2026 Earnings Call

1Key Financial Results and Metrics

After-tax Operating Income:: $901 million, or $2.50 per share.

Annualized Net Income Return on Average Common Equity:: 17.8%.

Combined Ratio:: 82.3%, up 130 basis points year-over-year.

Book Value per Share Growth:: 1.7% in the quarter.

Underwriting Income::

Insurance: $66 million.

Reinsurance: $441 million (up from $167 million in Q1 2025).

Mortgage: $221 million.

Net Investment Income:: $408 million, or $1.13 per share.

Share Repurchases:: $783 million in Q1 2026, with an additional $311 million repurchased in Q2 2026 to date.

2Strategic Updates and Business Highlights

Insurance Segment:: Focused on profitability over volume, resulting in flat top-line growth. Nonrenewals of certain program business are expected to reduce net premium by approximately $250 million throughout 2026.

Reinsurance Segment:: Continued strong underwriting performance with a 76% combined ratio. Actively managing portfolio mix to maintain risk-adjusted returns.

Mortgage Segment:: Continued strong performance with a focus on innovation and new product introductions. Credit quality remains excellent, with delinquencies normalizing.

Operational Milestone:: Successful migration of acquired businesses from Allianz to Arch systems, enhancing scalability and operational efficiency.

3Forward Guidance and Outlook

Market Conditions:: Competitive environment expected to persist, particularly in property lines. The company remains committed to disciplined underwriting and capital management.

Growth Opportunities:: Anticipated in casualty-focused businesses, despite competitive pressures. The company is optimistic about the casualty market, particularly in specialty lines.

Investment Strategy:: Focus on deploying capital into the business, with share repurchases viewed as an attractive use of excess capital when organic growth opportunities are limited.

4Bad News, Challenges, or Points of Concern

Competitive Pressures:: Increased competition leading to rate reductions in certain lines, particularly property and casualty.

Declining Premiums:: Net premiums written in the reinsurance segment declined by 6% year-over-year, driven by competitive market dynamics.

Operational Expenses:: Higher operating expenses due to investments in technology and systems integration, which may impact margins in the short term.

Catastrophe Losses:: Current year catastrophe losses were slightly below expectations but included impacts from ongoing geopolitical events, such as the Iran conflict.

5Notable Q&A Insights

Property Catastrophe Market:: Management expects continued competitiveness in the property cat market, with no clear forecasts for mid-year renewals.

Casualty Opportunities:: Management remains optimistic about growth opportunities in specialty casualty lines, despite ongoing adverse developments from previous years.

AI and Technology Investments:: AI has played a significant role in accelerating system migrations and improving operational efficiencies, with ongoing investments expected.

Exposure to Man-made Losses:: The company is cautiously managing exposure to political violence and terror-related risks, with premium pricing reflecting increased risk.

Future of Cyber Insurance:: Management views the cyber insurance market as evolving, with potential systemic risks due to advancements in AI. Overall, Arch Capital delivered a strong quarter, demonstrating resilience in a competitive market while navigating challenges in specific segments. The focus remains on disciplined underwriting and strategic capital management to sustain long-term shareholder value.