The Aon Benfield Aggregate

The Aon Benfield Aggregate Nine months ended September 30, 2010 2010 年 1~9 月 期 Prepared by

Global (Re)insurer Capital ( 再 ) 保 険 者 の 資 本 推 移 500 450 17% 400 350-17% 18% USDbn 300 250 200 150 100 50 0 2007 2008 2009 9M 2010 1

P&C Gross Premiums Written, % change グロス 計 上 保 険 料 ( 損 保 ) 増 収 率 Starr Indemnity Greenlight Re PartnerRe Validus Maiden Montpelier Re Flagstone Re SCOR Hannover Re Fairfax Alterra Axis Capital Everest Re Endurance Specialty Munich Re ACE Allied World Aspen ABA XL Group Transatlantic Holdings Gen Re Dorinco White Mountains American Agricultural RenaissanceRe National Indemnity Arch Capital Swiss Re Platinum Argo Group -0.1% -30% -20% -10% 0% 10% 20% 30% 40% 50% 227% % Change in P&C Gross Premiums Written (Reporting Currency) 2

Distribution of Net Premiums Written 正 味 計 上 保 険 料 の 会 社 別 内 訳 9M 2010 P&C Net Premiums Written USD87bn Munich Re 22.4% ACE 10.6% Swiss Re 10.1% Hannover Re 6.6% XL Group 4.5% National Indemnity 4.3% Fairfax 3.9% PartnerRe 3.9% SCOR 3.9% Everest Re 3.5% Remainder 26.3% 3

ABA Pre-Tax Profit ABA 税 引 前 利 益 40 30 Pre-tax profit USDbn 20 10 0 17.6 23.0-10 -20 9M 2009 9M 2010 Other その 他 Life underwriting result Investment income 生 保 引 受 利 益 投 資 収 益 Capital gains/losses Non-life underwriting result Pre-tax profit 税 引 前 利 益 キャピタル ゲイン(ロス) 損 保 引 受 利 益 4

Pre-Tax Profits, % change 税 引 前 利 益 増 加 率 National Indemnity Swiss Re XL Group Axis Capital American Agricultural Starr Indemnity Gen Re SCOR ACE ABA Allied World Alterra Maiden Dorinco Argo Group Arch Capital Hannover Re Munich Re RenaissanceRe Platinum Fairfax Transatlantic Holdings Endurance Specialty PartnerRe Aspen Everest Re Montpelier Re Validus Flagstone Re Greenlight Re White Mountains 31% -100% -50% 0% 50% 100% 150% 200% % Change in 9M 2010/09 Pre-tax Profit (Reporting Currency) 1150% 816% 513% 5

ABA Combined Ratio ABAコンバインド レシオ 110% 90% 91.1% -4.5% 96.8% 70% 50% 65.2% 71.1% 30% 10% 29.3% 30.2% -10% -3.4% 9M 2009 COR Expense ratio Loss ratio Prior year reserve adj 9M 2010 COR 2009 年 9 月 末 コンバインド レシオ 事 業 費 率 損 害 率 過 年 度 リザーブ 調 整 額 2010 年 9 月 末 コンバインド レシオ 6

Combined Ratios コンバインド レシオ Starr Indemnity Fairfax American Agricultural Everest Re Argo Group White Mountains Greenlight Re Munich Re Flagstone Re Transatlantic Holdings Hannover Re SCOR Aspen ABA Maiden XL Group Swiss Re PartnerRe Arch Capital Validus Gen Re ACE Endurance Specialty Axis Capital National Indemnity Alterra Allied World Dorinco Montpelier Re Platinum RenaissanceRe 96.8% 50% 70% 90% 110% Combined ratio (Reporting Currency) 7

Loss Reserve Development ロス リザーブ 調 整 RenaissanceRe Allied World Platinum Gen Re Montpelier Re National Indemnity PartnerRe Axis Capital Validus Alterra Dorinco Endurance Specialty XL Group Arch Capital ACE ABA Flagstone Re Hannover Re White Mountains Argo Group American Agricultural Everest Re Fairfax Swiss Re Transatlantic Holdings Aspen Starr Indemnity Munich Re SCOR Maiden Greenlight Re 4.5% -10% 0% 10% 20% 30% 40% Prior Year Reserve Adj as % of NPE (Reporting Currency) 過 年 度 ロス リザーブ 調 整 額 ( 保 険 料 に 対 する 比 率 ) 8

Investment Return 投 資 利 回 り Fairfax Allied World RenaissanceRe PartnerRe National Indemnity Gen Re Montpelier Re Munich Re Validus Platinum ABA Arch Capital Axis Capital Everest Re Dorinco ACE Swiss Re Aspen Flagstone Re Argo Group Transatlantic Holdings Maiden White Mountains Greenlight Re Hannover Re Alterra Endurance Specialty SCOR Starr Indemnity XL Group American Agricultural 4.9% 0% 2% 4% 6% 8% 10% Annualized Investment Return (Reporting Currency) 9

Shareholders Funds Development 9M 2010 vs 9M 2009 株 主 資 本 推 移 260 2010 年 1~9 月 19.1-4.4-1.5 11.2-6.5-1.9 251.0 240 25.2 USD bn 220 200 209.8 180 210 FY 2009 SHF 2009 年 1~9 月 Additional capital Net income Dividends FX Investment gains Share buybacks 20.2-0.6 1.7 Other 9M 2010 SHF 202.4 190 13.6-3.7 3.2 USD bn 170 164.0 4.0 150 FY 2008 SHF 前 年 末 株 主 資 本 Additional capital 追 加 資 本 Net income Dividends FX Investment gains 純 利 益 配 当 為 替 投 資 利 益 Share buybacks 自 社 株 買 戻 し 10 Other 9M 2009 SHF その 他 9 月 末 株 主 資 本

Shareholders Funds, % change 株 主 資 本 増 加 率 Alterra National Indemnity Swiss Re Hannover Re ABA Fairfax ACE XL Group Maiden SCOR Arch Capital Munich Re Transatlantic Holdings Axis Capital Greenlight Re Endurance Specialty Platinum Aspen Allied World Argo Group RenaissanceRe Gen Re Everest Re American Agricultural Starr Indemnity Flagstone Re White Mountains PartnerRe Dorinco Montpelier Re Validus 20% -10% 10% 30% 50% 70% 90% % Change in Shareholders' Funds (Reporting Currency) 11

Invested Assets 運 用 資 産 内 訳 ABA Invested Assets 31 December 2009 USD844bn ABA Invested Assets 30 September 2010 USD900bn 15% 20% 7% 6% 12% 66% 11% 63% Fixed income securities Equities Cash Other 債 券 株 式 現 金 その 他 12

Contact List Jonathan Eggins +44.207.522.3898 jonathan.eggins@aonbenfield.com +44.207.522.3823 aonbenfieldresearch@aonbenfield.com 13