The U.S. MidCorp and Entertainment Insurance businesses acquired from Allianz (MCE Acquisition) contributed $373 million to the insurance segment's net premiums written, representing 24.2 points of growth.

Arch Capital repurchased 2.2 million shares under the share repurchase program with an aggregate purchase price of $196.4 million during the three months ended March 31, 2025.

The MCE Acquisition is being integrated into the company's internal control system. The MCE Acquisition represents 1.3% of total assets, and 8.2% of total revenues as of March 31, 2025.

Management emphasizes underwriting and risk selection in a more competitive market, leveraging expertise, data, and financial resources to maintain margins.

The persistency rate was 81.9% for the Arch MI U.S. portfolio of primary mortgage insurance policies at March 31, 2025, indicating a healthy retention of insured mortgages.

The company is actively managing its investment portfolio to maximize total return within certain guidelines, and the effect of financial market movements on the investment portfolio will directly impact net realized gains or losses.

The company incurred $547 million of current year catastrophe losses net of reinstatement premiums in its property and casualty lines.

The company acknowledges increased competition in certain property and casualty lines and emphasizes the importance of underwriting and risk selection in this environment.

The company conducts insurance and reinsurance operations in various foreign currencies and is exposed to fluctuations in foreign currency exchange rates.

Management believes that they can benefit from consolidation around market leaders in specialty lines in the London market.

Management believes they are well-positioned across the insurance segment and expect continued growth in casualty-led lines as well as the U.S. middle market.

Underlying fundamentals remained strong and our U.S. market share was stable as industry pricing discipline held.

The underwriting expense ratio for the mortgage segment was 15.0% in the 2025 first quarter, compared to 17.5% in the 2024 first quarter.

The MCE Acquisition is being integrated into the company's internal control system, and the company is excluding the internal control over financial reporting of MCE Acquisition from its evaluation of the effectiveness of its disclosure controls and procedures.

Management emphasizes the importance of underwriting and risk selection in a more competitive market, and continues to leverage expertise, data, and financial resources to maintain margins.

Management mentions leveraging investments in data and analytics to support underwriting, indicating a focus on using technology to improve decision-making.

Management states that they are dynamic managers of a data-driven enterprise with a culture that attracts best-in-class talent.

The company uses models to estimate the frequency and severity of catastrophic events and severe economic events.

Arch Capital repurchased 2.2 million shares for $196.4 million during the quarter, demonstrating a commitment to returning capital to shareholders.

At March 31, 2025, $800.4 million of share repurchases were available under the program.

Currently, our portfolio is actively managed to maximize total return within certain guidelines.

The provided 10-Q filing does not contain any explicit discussion of environmental, social, or governance (ESG) initiatives.

The Government of Bermuda enacted the Corporate Income Tax Act 2023, which established a 15% corporate income tax effective January 1, 2025.

Management states that they are dynamic managers of a data-driven enterprise with a culture that attracts best-in-class talent.

The company acknowledges increased competition in certain property and casualty lines and emphasizes the importance of underwriting and risk selection in this environment.

Management believes they are well-positioned across the insurance segment and expect continued growth in casualty-led lines as well as the U.S. middle market.

Underlying fundamentals remained strong and our U.S. market share was stable as industry pricing discipline held.