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1©2026 Arch Capital Group Ltd. All rights reserved. ©2026 Arch Capital Group Ltd. All rights reserved. INVESTOR PRESENTATION 2026 Second Quarter
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2©2026 Arch Capital Group Ltd. All rights reserved. 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 Company’s current views with respect to future events and financial performance. All statements other than statements of historical fact included in or incorporated by reference in this release are forward-looking statements. Forward-looking statements can generally be identified by the use of forward-looking terminology such as “may,” “will,” “expect,” “intend,” “estimate,” “anticipate,” “believe” or “continue” or their negative or variations or similar terminology. Forward-looking statements involve the Company’s current assessment of risks and uncertainties. Actual events and results may differ materially from those expressed or implied in these statements. A non-exclusive list of the important factors that could cause actual results to differ materially from those in such forward-looking statements includes the following: adverse general economic and market conditions; increased competition; pricing and policy term trends; fluctuations in the actions of rating agencies and the Company’s ability to maintain and improve the Company’s ratings; investment performance; the loss and addition of key personnel; the adequacy of the Company’s loss reserves, severity and/or frequency of losses, greater than expected loss ratios and adverse development on claim and/or claim expense liabilities; greater frequency or severity of unpredictable natural and man-made catastrophic events; the impact of acts of terrorism and acts of war; changes in regulations and/or tax laws in the United States or elsewhere; the Company’s ability to successfully integrate, establish and maintain operating procedures as well as integrate the businesses we have acquired or may acquire into the existing operations; changes in accounting principles or policies; material differences between actual and expected assessments for guaranty funds and mandatory pooling arrangements; availability and cost to the Company of reinsurance to manage gross and net exposures; the failure of others to meet their obligations to the Company; an incident, disruption in operations or other cyber event caused by cyber attacks, the use of artificial intelligence technologies or other technology on the Company’s systems or those of the Company’s business partners and service providers, which could negatively impact the Company’s business and/or expose the Company to litigation; and other matters set forth under Item 1A “Risk Factors”, Item 7 “Management’s Discussion and Analysis of Financial Condition and Results of Operations” and other sections of the Company’s Annual Report on Form 10-K for the year ended December 31, 2025, filed with the SEC on February 26, 2026 and of the Company’s latest Quarterly Reports on Form 10-Q, as well as the other factors set forth in the Company’s other documents on file with the SEC, and management’s response to any of the aforementioned factors. All subsequent written and oral forward-looking statements attributable to the Company or persons acting on its behalf are expressly qualified in their entirety by these cautionary statements. The foregoing review of important factors should not be construed as exhaustive and should be read in conjunction with other cautionary statements that are included herein or elsewhere. The Company's forward-looking statements speak only as of the date of this press release or as of the date they are made, and the Company undertakes no obligation to publicly update or revise any forward-looking statement, whether as a result of new information, future events or otherwise. This presentation may contain non-GAAP financial measures as defined by Regulation G of the rules of the SEC. Arch Capital Group Ltd. (the ”Company”) believes these non-GAAP financial measures provide users of its financial information meaningful and useful insight in evaluating the performance of the Company. Investors should consider non-GAAP financial measures in addition to, and not as a substitute for, or superior to, the comparable GAAP financial measures. The reconciliation to GAAP and information about the specific non-GAAP financial measures used herein can be found within this presentation/video/document. Additional information about non-GAAP financial measures can also be found in the Current Report on Form 8-K furnished to the SEC by the Company in connection with its most recent earnings press release and the Company's website: www.archgroup.com. From time to time, the Company posts additional financial information and presentations to its website, including information with respect to its subsidiaries, and investors and other recipients of this information are encouraged to check the website. Informational Statements
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3©2026 Arch Capital Group Ltd. All rights reserved. A Leading Global Specialty Insurer A GLOBAL PRESENCE ~8,000 Employees Worldwide Member of the S&P 500 Stock Market Index Total Capitalization $28.3B Debt and Preferred/ Total Capitalization 18.1% *Arch Reinsurance Ltd. ratings as of July 29, 2026. See our website for complete rating information. Financial Strength Ratings* AA- A+ Standard & Poor’s A.M. Best 25 Years of Success As of June 30, 2026 Gross Premium Written $22.8B TTM 1 Ending June 30, 2026 ©2026 Arch Capital Group Ltd. All rights reserved. 3 Combined Ratio 81.3% ® 1 TTM = Trailing Twelve Months.
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4©2026 Arch Capital Group Ltd. All rights reserved. Arch Operates Leading Specialty Insurance Lines Across a Wide Range of Geographies and Products 6,931 7,911 9,053 10,435 10,409 6,948 9,113 11,112 11,149 11,075 1,455 1,387 1,351 1,305 1,296 $15,327 $18,403 $21,511 $22,878 $22,770 2022 2023 2024 2025 TTM Ending 6/30/26 Insurance Reinsurance Mortgage 46% Insurance $10.4B 48% Reinsurance $11.1B 6% Mortgage $1.3B Specialty Re/Insurance Business 1 The sum of gross premiums written for each segment does not agree to the total gross premiums written as shown in the table above due to elimination of intersegment transactions. $22.8B Total Gross Premiums Written TTM Ending 6/30/26 ($B) Gross Premiums Written by Segment From 2022 to TTM Ending 6/30/26 ($M)1
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5©2026 Arch Capital Group Ltd. All rights reserved. FOCUS ON SPECIALTY INSURANCE BUSINESS MANAGE THE CYCLE EFFECTIVELY ALLOCATE CAPITAL We focus on commercial lines where our underwriting expertise enhances risk selection and returns. Examples of specialty lines include: Insurance: Professional and Excess and Surplus (E&S), are more difficult and require deeper expertise to generate adequate, through-the-cycle returns. Reinsurance: Sophisticated modeling and portfolio construction can mitigate volatile property catastrophe returns. Mortgage: Innovative pricing and risk models drive performance. Our executive and underwriting teams are compensated on long-term profitability, not just generating new premium. A diversified platform ensures we can allocate our capital to the most deserving opportunities. Simple in concept, difficult to execute. Successful insurers write more business when opportunities are good and less when conditions deteriorate. We allocate capital to the lines of business with the best relative opportunity for risk-adjusted returns. When excess capital exists, we deploy according to the below priorities: 1. Reinvest into our business. 2. Reduce financial leverage. 3. Return to shareholders via buybacks or dividends. The DNA of a Specialty Insurance Powerhouse Arch’s playbook delivers superior results with lower volatility. Our operating principles are:
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6©2026 Arch Capital Group Ltd. All rights reserved. RLI W.R. Berkley Everest Axis Capital Markel Renaissance Re American Fin'l ProAssurance Selective Cincinnati Fin'l Hanover Chubb Mercury Gen'l Progressive Old Republic Fairfax Travelers United Fire White Mountains Horace Mann Safety 2% 4% 6% 8% 10% 12% 14% 16% 50% 75% 100% 125% 150% 175% TVC CAGR (YE:05-25) Coefficient of Variance (Standard Deviation of Annual TVC / Mean) Lower Volatility, Higher Returns Higher Volatility, Lower ReturnsLower Volatility, Lower Returns Higher Volatility, Higher Returns Composite Average = 7.8% Composite Average = 101% Consistently Superior Risk-Adjusted Returns with Less Volatility2006-2025 Source: D&P Analysis. Chart represents Total Value Creation, which includes tangible book value per share growth plus common dividends Excludes. ALL (7.8%, 185%), CNA (5.1%, 246%), KMPR (2.6%, 380%), HIG (3.0%, 337%) = coefficient of variance >175% Consistently Superior Risk-Adjusted Returns with Less Volatility Arch has 2x the average value creation of the industry and 83% of the average volatility around the industry average . Total Value Creation vs. Coefficient of Variation
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7©2026 Arch Capital Group Ltd. All rights reserved. Property and short-tail specialty (N.A.), 17% Other liability - occurrence, 17% Other liability - claims made, 11% Commercial multi-peril, 9% Commercial automobile, 8% Workers compensation, 7% Other, 4% Property and short-tail specialty (Int), 14% Casualty and other (Int), 13% Specialty, 34% Property, 28% Casualty, 21% Property catastrophe, 11% Marine and aviation, 3% Other, 3% Diversification Provides Earnings Stability 1 Insurance Segment: Products offered in North America include: commercial automobile; commercial multi-peril; other liability—claims made, which includes financial and professional lines; other liability—occurrence, which includes admitted and excess and surplus casualty lines; property and short-tail specialty; workers compensation; and other. Products offered across the Company’s International units include: property and short-tail specialty; and casualty and other. 2 Reinsurance Segment: Casualty includes executive assurance, professional liability, workers’ compensation, healthcare, Motor XOL and other. Specialty includes proportional motor, cyber, trade credit and surety, accident and health, workers’ compensation catastrophe, agriculture, and political risk. Other includes life. Property and Casualty Segments Insurance Net Premiums Written TTM Ending 6/30/26 ($B) Reinsurance Net Premiums Written TTM Ending 6/30/26 ($B) $7.3B2 Total $7.7B1 Total
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8©2026 Arch Capital Group Ltd. All rights reserved. $489 $492 $496 $374 $612 $860 $748 $970 $1,627 $1,788 $1,890 $1,892 $1,828 8.1% 6.6% 5.8% 4.2% 5.7% 6.9% 5.9% 8.0% 9.2% 9.2% 8.2% 8.2% 8.0% 0% 5% 10% 15% 20% 25% 30% 250 600 950 1,300 1,650 2,000 1/1/16 1/1/17 1/1/18 1/1/19 1/1/20 1/1/21 1/1/22 1/1/23 1/1/24 1/1/25 1/1/26 4/1/26 7/1/26 1:250 PML $M 1:250 as a % of tangible shareholders' equity * *Non-GAAP Financial Measures: Tangible shareholders’ equity represents total shareholders’ equity, which includes non-cumulative preferred shares, less goodwill and intangible assets (excluding amounts attributable to non-controlling interests). We believe that tangible shareholders’ equity is useful to investors because it provides a more accurate measure of the realizable value of shareholders’ equity. The following table provides a reconciliation of total shareholders’ equity to tangible shareholders’ equity: Managed Catastrophe Risk 1:250 PML $M December 31, (U.S. Dollars in Millions) 2015 2016 2017 2018 2019 2020 2021 2022 2023 2024 2025 Mar-26 Jun-26 Total shareholders' equity $6,167 $ 8,254 $ 9,197 $ 9,440 $11,497 $13,106 $13,546 $12,910 $18,353 $20,820 $24,206 $24,188 $24,030 Less: goodwill and intangible assets 98 775 646 628 731 682 942 802 730 1,351 1,222 1,190 1,163 Tangible shareholders' equity $ 6,069 $ 7,479 $ 8,551 $ 8,812 $10,766 $12,424 $12,604 $12,108 $17,623 $19,469 $22,984 $22,998 $22,867 ACGL Peak Zone 1:250 PML Property and Casualty Segments
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9©2026 Arch Capital Group Ltd. All rights reserved. 58% 57% 58% 59% 60% 42% 43% 42% 41% 40% $513 $509 $501 $485 $479 2022 2023 2024 2025 As of 6/30/26 65% 35% Mortgage Insurance Diversifies Earnings $951M U.S. Primary Mortgage Insurance International Mortgage Insurance/Reinsurance and U.S. Credit Risk Transfer (CRT) and other Insurance In Force ($B) Underwriting Income ($M) TTM Ending 6/30/26 Mortgage
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10©2026 Arch Capital Group Ltd. All rights reserved. U.S. government and government agencies3, 29.2% AAA, 16.3% AA, 7.7% A, 19.0% BBB, 19.5% BB, 4.1% B, 2.4% Lower than B, 0.1% Not Rated, 1.7% $34.3B Total Conservative Investment Portfolio 1 CMBS = Commercial mortgage backed securities. 2 MBS = Mortgage backed securities. 3 Includes U.S. government – sponsored agency MBS and agency CMBS. U.S. government, 16.3% Corporates, 31.1% MBS2 5.3% CMBS1 3.1% Municipal, 0.2% Asset backed sec., 7.4% Non-U.S. government, 5.8% Cash & short-term, 9.0% Equity securities, 4.6% Equity method funds, 13.8% Other, 3.4% $49.5B Total Invested Assets ($B) June 30, 2026 Fixed Maturity by Rating ($B) June 30, 2026 Investments Average S&P/Moody’s Credit Ratings: AA- / Aa3 Average credit ratings on the Company’s investment portfolio on securities with ratings assigned by Standard & Poor’s (“S&P”) and Moody’s Investors Service (“Moody’s”).
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11©2026 Arch Capital Group Ltd. All rights reserved. $496 $1,023 $1,495 $1,625 $1,667 $115 $278 $580 $504 $645 $611 $1,301 $2,075 $2,129 $2,312 $0 $500 $1,000 $1,500 $2,000 $2,500 2022 2023 2024 2025 TTM Ending 6/30/26 Equity Method Income Net Investment Income Investment Income a Steady Contributor to Book Value Growth Net Investment Income: Investment income net of investment expenses, included as part of operating income. Equity Method Investments: Equity in net income (loss) of investment funds accounted for using the equity method. Not included in operating Income. Excluding investments in operating affiliates. Total Investable Assets in ($M): $28,065 $34,589 $41,388 $47,369 $49,503 2022 2023 2024 2025 As of 6/30/26 Net Investment Income + Equity Method Investments ($M) Investments
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12©2026 Arch Capital Group Ltd. All rights reserved. $2.03 $68.04 $5.00 $0 $10 $20 $30 $40 $50 $60 $70 $80 2001 2002 2003 2004 2005 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 2018 2019 2020 2021 2022 2023 2024 2025 Jun-26 Book Value Accumulated Common Dividends Superior Value Creation 1 Excludes the effects of stock options and restricted stock units outstanding. 2 Includes senior debt, preferred equity, common stock and AOCI. 3 Total value creation includes growth in book value per common share plus accumulated common dividends. Book Value per Common Share1 + Accumulated Common Dividends Total Capitalization2 ($B): $1.0 $1.4 $1.9 $2.5 $2.8 $3.9 $4.3 $3.8 $4.7 $4.9 $5.0 $5.6 $6.5 $7.0 $7.1 $10.5 $11.3 $11.2 $13.2 $15.8 $16.3 $15.6 $21.1 $23.5 $26.9 $28.3 Debt/Preferred to Total Capitalization2 0.0% 0.0% 10.5% 11.8% 10.8% 16.1% 14.4% 18.9% 15.3% 14.9% 14.5% 13.0% 18.7% 17.3% 17.2% 28.7% 26.4% 22.5% 19.0% 22.1% 21.8% 22.7% 16.9% 15.1% 13.2% 18.1% 15.7% 3 Compound Annual Growth Rate
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13©2026 Arch Capital Group Ltd. All rights reserved. Vinay Misquith Senior Vice President, Finance _________ (914) 872 3666 VMisquith@archgroup.com Donald Watson Executive Vice President, Financial Services _________ (914) 872 3616 DWatson@archgroup.com Sustainability reports and additional governance documents are available at archgroup.com/sustainability. Previous investor presentations and other financial resources are available at archgroup.com/investors. Investor InquiriesInvestor Inquiries