Slide 1: Investor Presentation: 2025 Third Quarter
INVESTOR PRESENTATION 2025 Third Quarter ©2025 Arch Capital Group Ltd. All rights reserved. ©2025 Arch Capital Group Ltd. All rights reserved. 1
Slide 2: Informational Statements
Informational Statements The Private Securities Litigation Reform Act of 1995 provides a “safe harbor” for forward-looking statements. This release or any other written or oral statements made by or on behalf of Arch and its subsidiaries may include forward-looking statements, which reflect the Comp
Slide 3: Specialty Insurance Business
Specialty Insurance Business Arch Operates Leading Specialty Insurance Lines Across a Wide Range of Geographies and Products Gross Premiums Written Gross Premiums Written by Segment TTM Ending 9/30/25 ($B) From 2020 to TTM Ending 9/30/25 ($M)1 49% $22,825 Reinsurance $21,511 6% 1,310 $11.1B Mortgage
Slide 4: Creating Shareholder Value Throughout the Cycle
Creating Shareholder Value Throughout the Cycle Generate Superior Focus on Conservative Risk-Adjusted Underwriting Balance Sheet Returns Thorough risk assessment of Talent intensive, not Minimize investment underlying exposures people intensive risk Align executive compensation with Specialty lines
Slide 5: Consistently Superior Risk-Adjusted Returns with Less Volatility
Consistently Superior Risk-Adjusted Returns with Less Volatility Total Value Creation vs. Coefficient of Variation 12/31/2004 – 6/30/2025 Lower Volatility, Higher Returns Higher Volatility, Higher Returns Arch has 2x the average 16% value creation of the industry and 84% of the Composite average vol
Slide 6: Diversification Reduces Earnings Volatility
Diversification Reduces Earnings Volatility Property and Casualty Segments Insurance Net Premiums Written Reinsurance Net Premiums Written TTM Ending 9/30/25 ($B) TTM Ending 9/30/25 ($B) Casualty and other Property and (Int), 12% short-tail Other, 2% specialty (Int), Marine and aviation, 4% 14% Spec
Slide 7: Managed Catastrophe Risk
Managed Catastrophe Risk Property and Casualty Segments ACGL Peak Zone 1:250 PML 1:250 as a % of tangible shareholders' equity available to Arch* 2,000 30% $1,873 $1,894 $1,788 $1,823 25% 1,650 $1,627 PML $M 20% PML $M 1,300 1:250 1:250 15% 950 9.1% $970 9.2% 9.2% 9.0% 8.6% 8.1% 8.4% 10% $860 6.6% 5
Slide 8: Mortgage Insurance Diversifies Earnings
Mortgage Insurance Diversifies Earnings Mortgage Insurance In Force ($B) Underwriting Income ($M) TTM Ending 9/30/25 $513 $509 $501 $495 $461 $424 42% 43% 42% 42% 39% 39% 34% $1,017M 66% 61% 58% 57% 58% 58% 61% 2020 2021 2022 2023 2024 As of 9/30/25 U.S. Primary Mortgage Insurance International Mort
Slide 9: Our Investment Strategy
Our Investment Strategy Investments Conservative Portfolio Focused on Total Return Invested Assets ($B) Fixed Maturity by Rating ($B) September 30, 2025 September 30, 2025 Lower than B, 0.1% U.S. government, Not Rated, 2.2% Equity method funds & 13.5% B, 2.1% U.S. government other, 18.3% and governm
Slide 10: Investment Income a Steady Contributor to Book Value Growth
Investment Income a Steady Contributor to Book Value Growth Investments Net Investment Income + Equity Method Investments ($M) $600 $570 $567 Equity Method Income $548 $542 $531 Net Investment Income $500 $171 $143 $162 $134 $426 $167 $431 $415 $400 $53 $99 $328 $102 $300 $59 $200 $399 $405 $405 $40
Slide 11: Links to Sustainability Documents
Links to Sustainability Documents ▪ We believe in the value of transparency around our sustainability initiatives, and we are committed to sharing our progress to relevant stakeholders on an annual basis across the following three reports: Annual Sustainability Report Sustainability Accounting Stand
Slide 12: Superior Value Creation
Superior Value Creation Book Value per Common Share1 + Cumulative Common Dividends $70 Book Value Cumulative Common Dividends $5.00 $60 3 15.9% $5.00 $50 Compound Annual Growth Rate $40 $30 $62.32 $53.11 $46.94 $20 $33.56 $32.62 $30.31 $26.42 $10 $21.52 $18.40 $20.30 $15.88 $13.18 $15.09 $8.04 $9.91
Slide 13: Contact
Contact Investor Inquiries: Donald Watson Vinay Misquith Executive Vice President, Senior Vice President, Financial Services Finance _________ _________ (914) 872 3616 (914) 872 3666 DWatson@archgroup.com VMisquith@archgroup.com Jordan Arnold Maureen Kitson Director, Executive Assistant, Financial S