Exhibit 99.1 [GRAPHIC OMITTED] [LOGO] Endurance - -------------------------------------------------------------------------------- Endurance Specialty Holdings Ltd. Wachovia Securities' Fourteenth Annual Nantucket Conference - -------------------------------------------------------------------------------- June 23rd, 2004 Forward Looking Statements Statements contained in this presentation that are not based on current or historical fact are forward-looking in nature. Such forward-looking statements are based on current plans, estimates and expectations and are made pursuant to the Private Securities Litigation Reform Act of 1995. Forward-looking statements are based on known and unknown risks, assumptions, uncertainties and other factors. The Company's actual results, performance, or achievements may differ materially from any future results, performance, or achievements expressed or implied by such forward-looking statements. The Company undertakes no obligation to publicly update or revise any forward-looking statement. 2 [LOGO] Endurance Overview -------------------------- 3 [LOGO] Endurance What We Have Achieved > Established one of the leading insurance/reinsurance markets in the industry in two years o Bermuda-based insurance products o Property catastrophe reinsurance o U.S. working layer reinsurance > Management team with strong execution skills o Understands the key drivers of financial performance o Demonstrated ability to build profitable lines of business o Strong transaction and capital management experience > Company generated 17% growth in book value in 2003 and is positioned to generate 15%+ growth in book value throughout the P&C cycle 4 [LOGO] Endurance What We Have Achieved (cont'd) > Exceeded all financial objectives o $1.6 billion in gross premiums o $3.5 billion in assets o $1.6 billion in shareholders' equity o $263 million in net income o 2003 earnings beat estimates by 54% > Developed strong, technical, underwriting based culture > Built strong systems, controls, and infrastructure > Successfully executed two acquisitions > One of handful of companies to be upgraded by A.M. Best in 2003 [GRAPHIC OMITTED] Proven track record of significant shareholder value creation 5 [LOGO] Endurance Our Value Creation Levers > Specialist underwriting driven culture built around deep infrastructure, intellectual capital and technical skills o "Stock Picking versus Index Tracking" > Portfolio approach achieves capital efficiency and lower volatility of results > Scaleable systems > Proactively allocate capital by line of business to maximize return [GRAPHIC OMITTED] Focus on profit, not revenue 6 [LOGO] Endurance Underwriting & Strategy -------------------------- 7 [LOGO] Endurance Underwriting Philosophy > Strategy o Identify business segments with sufficient opportunities to apply expertise o Only underwrite those risks that are susceptible to underwriting and actuarial analysis o Reallocate capital as different businesses become relatively less attractive > Culture o Understand the risk correlations within each segment and across portfolio to determine required margins o Identify risks within each segment that meet return thresholds o Apply technical resources at the front end to evaluate and select business > Control o Focus on target returns, not premiums o Monitor underwriting decisions on a live basis o Monitor emergence of results to corroborate assumptions [GRAPHIC OMITTED] Philosophy that is disciplined, consistent and embraced by underwriting teams 8 [LOGO] Endurance The Platforms and Business Lines - ------------------------------------------------------------------------------------------------------------------------------ Endurance Specialty Endurance Reinsurance Endurance Worldwide Insurance Ltd. Corporation of America Insurance Limited (Bermuda) (U.S.) (U.K.) - ------------------------------------------------------------------------------------------------------------------------------ Severity Driven Risks Frequency Driven Risks Non-U.S. Risks o Property-Cat & Per Risk Treaty o Property Reinsurance o Non-North American Property Treaty o Severity Driven Casualty Treaty o Casualty Reinsurance o European Direct Property o Excess Casualty -------------------------------- ------------------------------------- o Professional Liability / E&O o Underwriters: 25 o Underwriters: 16 o Healthcare o Actuaries and Cat modelers: 8 o Actuaries and Cat modelers: 3 o Aviation o Total Staff: 90 o Total Staff: 36 o North American Direct Property - ---------------------------------- o Underwriters: 62 o Actuaries and Cat modelers: 17 o Total Staff: 119 [THE FOLLOWING TABLES WERE REPRESENTED BY PIE CHARTS IN THE PRINTED MATERIAL.] Risk Exposure: 2003 GPW = $1,602M Lines of Business: 2003 GPW = $1,602M Property 50% Reinsurance 75% Casualty 40% Insurance 25% Other Specialty 10% 9 [LOGO] Endurance Underwriting - Summary Results - ------------------------------------------------------------------------------------------------------------------------ ($ in thousands) Property Property Casualty Aerospace Per Risk Property Individual Casualty Individual and Other Treaty Catastrophe Risk Treaty Risk Specialty Total - ------------------------------------------------------------------------------------------------------------------------ Q1 2004 Underwriting Results - ---------------------------- Gross Written Premiums $206,413 $128,538 $29,534 $187,178 $ 50,091 $118,877 $ 720,631 Net Earned Premiums 118,125 53,373 22,855 106,055 54,675 60,743 415,826 Unearned Prem. Reserves 366,615 120,538 53,929 305,397 99,093 183,530 1,129,102 GAAP Combined Ratio 83.6% 27.0% 48.8% 99.5% 88.8% 100.1% 81.6% Stat. Combined Ratio 81.5 21.9 47.1 92.3 89.6 95.4 77.8 2003 Underwriting Results - ------------------------- Gross Written Premiums $469,290 $183,594 $85,863 $390,265 $214,392 $258,593 $1,601,997 Net Earned Premiums 296,551 174,158 65,408 284,843 173,266 179,721 1,173,947 GAAP Combined Ratio 93.9% 38.5% 58.6% 97.5% 89.1% 99.5% 84.7% Stat. Combined Ratio 91.2 37.7 56.7 95.7 87.8 98.2 83.5 2002 Underwriting Results - ------------------------- Gross Written Premiums $168,054 $178,120 $62,934 $203,566 $106,903 $ 79,183 $ 798,760 Net Earned Premiums 59,453 114,823 33,907 84,355 44,292 32,659 369,489 GAAP Combined Ratio 102.1% 61.7% 60.8% 106.0% 100.8% 98.8% 86.2% Stat. Combined Ratio 92.3 59.5 56.3 98.6 92.1 90.3 80.8 10 [LOGO] Endurance Price Monitoring Review of Expected Underwriting Ratios by Quarter Direct - Property [THE FOLLOWING TABLE WAS REPRESENTED BY A LINE CHART IN THE PRINTED MATERIAL.] Underwriting Ratio ------------------------------- U/W Ratio - U/W Ratio - Price Monitor Price Monitor Quarter of Inception [Actual] [Smoothed] - ----------------------------------------------------------------- Q1-02 53% 45% Q2-02 48% 48% Q3-02 51% 51% Q4-02 58% 54% Q1-03 64% 58% Q2-03 70% 61% Q3-03 67% 64% Q4-03 73% 67% Q1-04 75% 70% Review of Expected Underwriting Ratios by Quarter Direct - Excess Casualty [THE FOLLOWING TABLE WAS REPRESENTED BY A LINE CHART IN THE PRINTED MATERIAL.] Underwriting Ratio ------------------------------- U/W Ratio - U/W Ratio - Price Monitor Price Monitor Quarter of Inception [Actual] [Smoothed] - ---------------------------------------------------------------- Q1-02 79% 88% Q2-02 100% 84% Q3-02 75% 81% Q4-02 103% 78% Q1-03 47% 75% Q2-03 77% 72% Q3-03 59% 69% Q4-03 86% 66% Q1-04 41% 63% 11 [LOGO] Endurance Risk Exposures SEC Segment & Subs. Distribution 2003 Premiums = $1,602 mm [THE FOLLOWING TABLE WAS REPRESENTED BY PIE CHARTS IN THE PRINTED MATERIAL.] Property Per Risk 30% Property Cat 11% Casualty Treaty 25% Property Individual Risk 5% Casualty Individual Risk 13% Aero & Other Specialty 16% Bermuda 48% U.S. 48% U.K. 4% Major Lines & Distribution* 2003 Premiums = $1,602 mm [THE FOLLOWING TABLE WAS REPRESENTED BY PIE CHARTS IN THE PRINTED MATERIAL.] Property Risk Per Treaty 30% Property Cat 11% Casualty/WC Cat 2% D&O/E&O 5% Personal Auto 4% Other Casualty 13% Property Individual Risk 5% Aerospace 9% XGL 5% Prof. Lines 2% HPL 6% Other 8% Aon 29% Marsh 27% Willis 21% Other 23% * Broker distribution chart excludes $400 million of gross premiums acquired from HartRe. 12 [LOGO] Endurance Risk Review - Portfolio Expected Risk Curve Endurance - Underwriting Income Curve ---------------------------------------------- In-Force Portfolio at January 2004 [THE FOLLOWING TABLE WAS REPRESENTED BY A LINE CHART IN THE PRINTED MATERIAL.] Probability Expected Result U/W Ratio U/W Ratio U/W Ratio U/W Ratio U/W Ratio U/W Ratio $312 M 138.9% 130.5% 120.0% 113.9% 105.9% 95.6% Profit 1-in-500 1-in-250 1-in-100 1-in-50 1-in-25 1-in-10 Year Year Year Year Year Year $692 M $541 M $364 M $243 M $103 M $75 M Loss Loss Loss Loss Loss Profit Underwriting Income - Amounts in Millions of USD 13 [LOGO] Endurance Financial Review ------------------------------ 14 [LOGO] Endurance Summary Financial Performance - -------------------------------------------------------------------------------------------- ($ in thousands) Year Ended Year Ended % Quarter Ended Income Statement December 31, 2002 December 31, 2003 Change March 31, 2004 - -------------------------------------------------------------------------------------------- Gross Written Premiums $ 798,760 $1,601,997 101% $ 720,631 Net Earned Premiums 369,489 1,173,947 218 415,826 Operating income 93,024 247,938 167 98,685 Combined Ratio 86.2% 84.7% 81.6% Operating ROAE 7.8% 17.3% 5.8% - -------------------------------------------------------------------------------------------- Balance Sheet - -------------------------------------------------------------------------------------------- Total Investments and Cash $1,663,249 $2,674,232 61% $2,980,915 Reserve for Losses & Loss Exp. 200,840 833,158 315 1,019,318 Reserve for Unearned Premiums 403,305 824,685 105 1,129,102 Total Shareholders' Equity 1,217,500 1,644,815 35 1,763,103 Debt / Total Capitalization 13.6% 5.9% 5.5% 15 [LOGO] Endurance Increasing Operating Leverage Annualized Quarterly Operating Leverage (a) --------------------------------------------- [THE FOLLOWING TABLE WAS REPRESENTED BY A BAR CHART IN THE PRINTED MATERIAL.] 1Q 2003 0.56x 2Q 2003 0.78x 3Q 2003 0.86x 4Q 2003 0.89x 1Q 2004 0.98x Quarterly Investment Leverage (b) --------------------------------------------- [THE FOLLOWING TABLE WAS REPRESENTED BY A BAR CHART IN THE PRINTED MATERIAL.] 1Q 2003 1.27x 2Q 2003 1.34x 3Q 2003 1.46x 4Q 2003 1.55x 1Q 2004 1.63x (a) Operating leverage is calculated by dividing quarterly net premiums earned by quarterly average equity. (b) Investment leverage is calculated by dividing quarterly average invested assets by quarterly average equity. 16 [LOGO] Endurance Achieving Our Targets 2004 ROE Component Build-Up Operating Assumptions - --------------------------- ------------------------------------------ [BAR CHART OMITTED] 15.5% 17.5% Mid to High Teens Returns 5.5% 5.5% 1.5:1.0 Investment Leverage at 3.70% yield 10.0% 12.0% 1.0:1.0 Operating Leverage -------- -------- 90.0% 88.0% Combined Combined Ratio Ratio Unlevered Return On Capital 17 [LOGO] Endurance Capital Management Strategy > Executed several value enhancing transactions o $100 million Zurich stock and warrant buyback at $17.50 per share o $20 million share repurchase of TIAA-CREF at $27.06 per share o $65 million share repurchase of Lightyear at $31.78 per share o $2 million share repurchase authorization > Significant financial flexibility with $500 million credit facility > Understand levers of capital optimization o Currently holding AAA level RBC o 6% debt to capital versus 15% to 20% target o All capital utilization measured against returning capital > Return of capital analysis conducted with two to three year payback o Analysis favors dividends when stock trades above 1.3x to 1.4x book 18 [LOGO] Endurance Significant Acquisition Experience > Strategy o Accelerated strategic development in property cat and US reinsurance o High degree of selectivity. 250+ acquisition opportunities. o Heavy upfront due diligence. o No legacy issues > Fully integrated within 30 days both people and systems > Financially attractive o LaSalle property cat portfolio, 24% accretive to 2002 EPS o Hart Re portfolio acquisition, 12% accretive to 2003 EPS > Minimal use of outside advisors 19 [LOGO] Endurance Conclusion ------------------------------------ 20 [LOGO] Endurance Conclusion > Exceeded all strategic and financial objectives > Built strong, technical, underwriting based culture > Created robust controls, systems, and infrastructure > Value enhancement through capital management and enhancing acquisitions > Committed to generating 15%+ growth in book value throughout the cycle > Demonstrated ability to create significant shareholder value with significant future upside 21 [LOGO] Endurance