EX-99.2 3 u10525exv99w2.htm EX-99.2 EX-99.2
Table of Contents

Exhibit 99.2
 
(ASPEN LOGO)
 
Aspen Insurance Holdings Limited
 
Financial Supplement
 
As of December 31, 2010
 
 
This financial supplement is for information purposes only. It should be read in
conjunction with other documents filed or to be filed by Aspen Insurance
Holdings Limited with the United States Securities and Exchange Commission.
 
AHL: NYSE
 
www.aspen.bm
 
Investor Contact:
 
Aspen Insurance Holdings Limited
Noah Fields, Head of Investor Relations
T: +1 441-297-9382
email: noah.fields@aspen-re.com


 

(ASPEN LOGO)
 
Aspen Insurance Holdings Limited
 
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Table of Contents

(ASPEN LOGO)
 
Aspen Insurance Holdings Limited

Basis of Presentation
 
Definitions and presentation: All financial information contained herein is unaudited except for information for the fiscal year ended December 31, 2009 excluding the represented segmental analysis. Unless otherwise noted, all data is in U.S. dollars millions, except for per share, percentage and ratio information.
 
In presenting Aspen’s results, management has included and discussed certain “non-GAAP financial measures”, as such term is defined in Regulation G. Management believes that these non-GAAP measures, which may be defined differently by other companies, better explain Aspen’s results of operations in a manner that allows for a more complete understanding of the underlying trends in Aspen’s business. However, these measures should not be viewed as a substitute for those determined in accordance with GAAP. The reconciliation of such non-GAAP financial measures to their respective most directly comparable GAAP financial measures in accordance with Regulation G is included in this financial supplement.
 
Operating income (a non-GAAP financial measure): Operating income is an internal performance measure used by Aspen in the management of its operations and represents after-tax operational results excluding, as applicable, after-tax net realized capital gains or losses and after-tax net foreign exchange gains or losses.
 
Aspen excludes after-tax net realized capital gains or losses and after-tax net foreign exchange gains or losses from its calculation of operating income because the amount of these gains or losses is heavily influenced by, and fluctuates in part, according to the availability of market opportunities. Aspen believes these amounts are largely independent of its business and underwriting process and including them distorts the analysis of trends in its operations. In addition to presenting net income determined in accordance with GAAP, Aspen believes that showing operating income enables investors, analysts, rating agencies and other users of its financial information to more easily analyze Aspen’s results of operations in a manner similar to how management analyzes Aspen’s underlying business performance. Operating income should not be viewed as a substitute for GAAP net income. Please see page 28 for a reconciliation of operating income to net income.
 
Annualized Operating Return on Average Equity (“Operating ROE”) (a non-GAAP financial measure): Annualized Operating Return on Average Equity 1) is calculated using operating income, as defined above and 2) excludes from average equity, the average after-tax unrealized appreciation or depreciation on investments and the average after-tax unrealized foreign exchange gains or losses and the aggregate value of the liquidation preferences of our preference shares. Unrealized appreciation (depreciation) on investments is primarily the result of interest rate movements and changes in credit spreads, and the resultant impact on fixed income securities, and unrealized appreciation (depreciation) on foreign exchange is the result of exchange rate movements between the U.S. dollar and the Group’s non-functional currencies. Such appreciation (depreciation) is not related to management actions or operational performance (nor is it likely to be realized). Therefore, Aspen believes that excluding these unrealized appreciations (depreciations) provides a more consistent and useful measurement of operating performance, which supplements GAAP information. Average equity is calculated as the arithmetic average on a monthly basis for the stated periods.
 
Aspen presents Operating ROE as a measure that is commonly recognized as a standard of performance by investors, analysts, rating agencies and other users of its financial information. See page 28 for a reconciliation of operating income to net income and page 7 for a reconciliation of average equity to closing shareholders’ equity.
 
Diluted Operating Earnings Per Share and Basic Operating Earnings Per Share (a non-GAAP financial measure): Aspen believes that the presentation of diluted operating earnings per share and basic operating earnings per share supports meaningful comparison from period to period and the analysis of normal business operations. Diluted operating earnings per share and basic operating earnings per share is calculated by dividing operating income by the diluted or basic weighted average number of shares outstanding for the period. See page 28 for a reconciliation of diluted and basic operating earnings per share to basic earnings per share.
 
Diluted book value per ordinary share (a non-GAAP financial measure): Aspen has included diluted book value per ordinary share as it takes into account the effect of dilutive securities; therefore, Aspen believes it is a better measure of calculating shareholder returns than book value per share. Please see page 26 for a reconciliation of diluted book value per share to basic book value per share.
 
Underwriting ratios (GAAP financial measures):  Aspen, along with others in the industry, uses underwriting ratios as measures of performance. The loss ratio is the ratio of net claims and claims adjustment expenses to net premiums earned. The acquisition expense ratio is the ratio of underwriting expenses (commissions, premium taxes, licenses and fees, as well as other underwriting expenses) to net premiums earned. The general and administrative expense ratio is the ratio of general and administrative expenses to net premiums earned. The combined ratio is the sum of the loss ratio, the acquisition expense ratio and the general and administrative expense ratio. These ratios are relative measurements that describe for every $100 of net premiums earned or written, the cost of losses and expenses, respectively. The combined ratio presents the total cost per $100 of earned premium. A combined ratio below 100% demonstrates underwriting profit; a combined ratio above 100% demonstrates underwriting loss.
 
GAAP combined ratios differ from U.S. statutory combined ratios primarily due to the deferral of certain third-party acquisition expenses for GAAP reporting purposes and the use of net premiums earned rather than net premiums written in the denominator when calculating the acquisition expense and the general and administrative expense ratios.
 
Accident Year Loss Ratios (a non-GAAP financial measure): In addition to the underwriting ratios described above, management also uses accident year loss ratios to evaluate current underwriting performance. The accident year loss ratio excludes the effect of prior years’ premium adjustments and reserve developments. This ratio focuses on the relationship between current premiums earned and losses incurred related to the current year. Please see pages 14 and 15 for a reconciliation of accident year loss ratios to underwriting ratios calculated in accordance with U.S. GAAP.


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Table of Contents

(ASPEN LOGO)
 
 
Aspen Insurance Holdings Limited
 
Financial Highlights
 
                                                             
    Three Months Ended December 31,       Twelve Months Ended December 31,    
(in US$ millions except for percentages, share and per share amounts)   2010       2009       Change       2010       2009       Change    
 
Gross written premium
  $ 412.8       $ 405.7         1.8 %     $ 2,076.8       $ 2,067.1         0.5 %  
Net written premium
  $ 395.2       $ 383.4         3.1 %     $ 1,891.1       $ 1,836.8         3.0 %  
Net earned premium
  $ 499.7       $ 476.2         4.9 %     $ 1,898.9       $ 1,823.0         4.2 %  
Net income after tax
  $ 92.7       $ 126.3         (26.6 % )   $ 312.7       $ 473.9         (34.0 % )
Operating income after tax
  $ 85.0       $ 129.2         (34.2 % )   $ 265.7       $ 464.3         (42.8 % )
Net investment income
  $ 57.0       $ 58.2         (2.1 % )   $ 232.0       $ 248.5         (6.6 % )
Underwriting income
  $ 23.2       $ 73.3         (68.3 % )   $ 63.1       $ 288.4         (78.1 % )
 
 
Earnings Per Share and Book Value Per Share
                                                           
Basic earnings per ordinary share
                                                           
Net income adjusted for preference share dividend and cancellation of preference shares
  $ 1.18       $ 1.45         (18.6 % )   $ 3.80       $ 5.82         (34.7 % )
Operating income adjusted for preference share dividend
  $ 1.08       $ 1.48         (27.0 % )   $ 3.18       $ 5.33         (40.3 % )
Diluted earnings per ordinary share
                                                           
Net income adjusted for preference share dividend and cancellation of preference shares
  $ 1.12       $ 1.40         (20.0 % )   $ 3.62       $ 5.64         (35.8 % )
Operating income adjusted for preference share dividend
  $ 1.02       $ 1.44         (29.2 % )   $ 3.03       $ 5.16         (41.3 % )
Book value per ordinary share
  $ 40.96       $ 35.42         15.6 %     $ 40.96       $ 35.42         15.6 %  
Diluted book value per ordinary share (treasury stock method)
  $ 38.90       $ 34.14         13.9 %     $ 38.90       $ 34.14         13.9 %  
Weighted average number of ordinary shares outstanding (in millions of shares)
    73.996         83.239         (11.1 % )     76.343         82.698         (7.7 % )
Diluted weighted average number of ordinary shares outstanding (in millions of shares)
    77.733         86.412         (10.0 % )     80.016         85.327         (6.2 % )
 
 
Underwriting Ratios
                                                           
Loss ratio
    61.5 %       47.8 %                 65.8 %       52.0 %            
Policy acquisition cost ratio
    18.1 %       20.0 %                 17.3 %       18.3 %            
Operating and administrative expense ratio
    15.7 %       16.9 %                 13.6 %       13.8 %            
Expense ratio
    33.8 %       36.9 %                 30.9 %       32.1 %            
Combined ratio
    95.3 %       84.7 %                 96.7 %       84.1 %            
 
 
Return On Equity
                                                           
Average equity (1)
  $ 2,612.7       $ 2,639.2                 $ 2,597.2       $ 2,452.4              
Return on average equity
                                                           
Net income adjusted for preference share dividend
    3.3 %       4.6 %                 11.2 %       18.4 %            
Operating income adjusted for preference share dividend
    3.0 %       4.7 %                 9.4 %       18.0 %            
Annualized return on average equity
                                                           
Net income
    13.2 %       18.4 %                 11.2 %       18.4 %            
Operating income
    12.0 %       18.8 %                 9.4 %       18.0 %            
 
 
See pages 7, 26 and 28 for a reconciliation of non-GAAP financial measures to their most directly comparable GAAP financial measures.
 
1. Average equity excludes the average after-tax unrealized appreciation or depreciation on investments, preference shares and average after-tax unrealized foreign exchange gains or losses.


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Table of Contents

(ASPEN LOGO)
 
 
Aspen Insurance Holdings Limited
 
Consolidated Statements of Operations — Quarterly
 
 
                                                                         
(in US$ millions except for percentages and per share amounts)   Q4 2010     Q3 2010     Q2 2010     Q1 2010     Q4 2009     Q3 2009     Q2 2009     Q1 2009     Q4 2008  
 
UNDERWRITING REVENUES
                                                                       
Gross written premiums
    $412.8       $415.8       $545.4       $702.8       $405.7       $490.3       $534.3       $636.8       $435.4  
Premiums ceded
    (17.6 )     (38.8 )     (6.6 )     (122.7 )     (22.3 )     (28.2 )     (49.6 )     (130.2 )     (29.3 )
                                                                         
Net written premiums
    395.2       377.0       538.8       580.1       383.4       462.1       484.7       506.6       406.1  
Change in unearned premiums
    104.5       74.7       (58.9 )     (112.5 )     92.8       8.8       (56.1 )     (59.3 )     72.5  
                                                                         
Net earned premiums
    499.7       451.7       479.9       467.6       476.2       470.9       428.6       447.3       478.6  
                                                                         
UNDERWRITING EXPENSES
                                                                       
Losses and loss expenses
    307.4       285.8       276.7       378.8       227.5       235.1       234.7       250.8       310.6  
Acquisition expenses
    90.6       75.6       77.8       84.5       95.1       79.6       80.8       78.6       87.5  
General, administrative and corporate expenses
    78.5       65.0       62.6       52.5       80.3       63.7       59.9       48.5       48.6  
                                                                         
Total underwriting expenses
    476.5       426.4       417.1       515.8       402.9       378.4       375.4       377.9       446.7  
                                                                         
Underwriting income/(loss) including corporate expenses
    23.2       25.3       62.8       (48.2 )     73.3       92.5       53.2       69.4       31.9  
                                                                         
OTHER OPERATING REVENUE
                                                                       
Net investment income
    57.0       58.1       57.5       59.4       58.2       58.9       72.2       59.2       10.3  
Interest expense
    (4.8 )     (3.9 )     (4.0 )     (3.8 )     (3.8 )     (3.9 )     (4.0 )     (3.9 )     (3.9 )
                                                                         
Total other operating revenue
    52.2       54.2       53.5       55.6       54.4       55.0       68.2       55.3       6.4  
                                                                         
Other income/(expense)
    10.1       (1.9 )     1.6       (0.9 )     0.9       1.1       0.7       (2.7 )     (0.5 )
                                                                         
OPERATING INCOME BEFORE TAX
    85.5       77.6       117.9       6.5       128.6       148.6       122.1       122.0       37.8  
                                                                         
OTHER
                                                                       
Net realized and unrealized exchange gains/(losses)
    (0.1 )     3.4       (2.6 )     1.5       (6.7 )     7.9       3.1       (2.3 )     (4.8 )
Net realized and unrealized investment gains/(losses)
    10.5       22.1       5.7       12.3       4.2       14.6       4.8       (12.2 )     8.4  
                                                                         
INCOME BEFORE TAX
    95.9       103.1       121.0       20.3       126.1       171.1       130.0       107.5       41.4  
Income tax (expense)/recovery
    (3.2 )     (10.3 )     (12.1 )     (2.0 )     0.2       (25.3 )     (19.6 )     (16.1 )     (19.6 )
                                                                         
NET INCOME AFTER TAX
    92.7       92.8       108.9       18.3       126.3       145.8       110.4       91.4       21.8  
Dividends paid on ordinary shares
    (11.5 )     (11.5 )     (11.7 )     (11.8 )     (12.6 )     (12.6 )     (12.3 )     (12.3 )     (12.3 )
Dividend paid on preference shares
    (5.7 )     (5.7 )     (5.7 )     (5.7 )     (5.5 )     (5.6 )     (5.8 )     (6.9 )     (6.9 )
                                                                         
Retained income
    $75.5       $75.6       $91.5       $0.8       $108.2       $127.6       $92.3       $72.2       $2.6  
                                                                         
Components of net income after tax
                                                                       
  Operating income     $85.0       $69.7       $104.9       $6.1       $129.2       $125.6       $103.8       $105.7       $20.5  
  Net realized and unrealized exchange gains/(losses) after tax     0.2       3.0       (1.3 )     1.0       (6.7 )     7.9       3.1       (2.3 )     (4.8 )
  Net realized and unrealized investment gains/(losses) after tax     7.5       20.1       5.3       11.2       3.8       12.3       3.5       (12.0 )     6.1  
                                                                         
NET INCOME AFTER TAX
    $92.7       $92.8       $108.9       $18.3       $126.3       $145.8       $110.4       $91.4       $21.8  
                                                                         
Loss ratio
    61.5%       63.3%       57.7%       81.0%       47.8%       49.9%       54.8%       56.1%       64.9%  
  Policy acquisition expense ratio     18.1%       16.7%       16.2%       18.1%       20.0%       16.9%       18.9%       17.6%       18.3%  
  Operating and administrative expense ratio     15.7%       14.4%       13.0%       11.2%       16.9%       13.5%       14.0%       10.8%       10.2%  
Expense ratio
    33.8%       31.1%       29.2%       29.3%       36.9%       30.4%       32.9%       28.4%       28.5%  
Combined ratio
    95.3%       94.4%       86.9%       110.3%       84.7%       80.3%       87.7%       84.5%       93.4%  
                                                                         
Basic earnings per share(1)
    $1.18       $1.14       $1.34       $0.16       $1.45       $1.69       $1.26       $1.42       $0.18  
Diluted earnings per share
    $1.12       $1.08       $1.28       $0.16       $1.40       $1.63       $1.22       $1.39       $0.18  
Annualized return on average equity
                                                                       
Net income
    13.2%       13.2%       16.4%       2.0%       18.4%       22.4%       17.6%       14.8%       2.8%  
Operating income
    12.0%       9.6%       15.6%             18.8%       19.2%       16.4%       17.6%       2.4%  
 
See pages 7, 26 and 28 for a reconciliation of non-GAAP financial measures to their most directly comparable GAAP financial measures.
 
1. Adjusted for preference share dividend and cancellation of preference shares.


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Table of Contents

(ASPEN LOGO)
 
 
Aspen Insurance Holdings Limited
 
Consolidated Statements of Operations — Year To Date
 
                         
    Twelve Months Ended December 31,  
(in US$ millions except for percentages)   2010     2009     2008  
 
UNDERWRITING REVENUES
                       
Gross written premiums
    $2,076.8       $2,067.1       $2,001.7  
Premiums ceded
    (185.7 )     (230.3 )     (166.2 )
                         
Net written premiums
    1,891.1       1,836.8       1,835.5  
Change in unearned premiums
    7.8       (13.8 )     (133.8 )
                         
Net earned premiums
    1,898.9       1,823.0       1,701.7  
                         
UNDERWRITING EXPENSES
                       
Losses and loss expenses
    1,248.7       948.1       1,119.5  
Acquisition expenses
    328.5       334.1       299.3  
General, administrative and corporate expenses
    258.6       252.4       208.1  
                         
Total underwriting expenses
    1,835.8       1,534.6       1,626.9  
                         
Underwriting income including corporate expenses
    63.1       288.4       74.8  
                         
OTHER OPERATING REVENUE
                       
Net investment income
    232.0       248.5       139.2  
Interest expense
    (16.5 )     (15.6 )     (15.6 )
                         
Total other operating revenue
    215.5       232.9       123.6  
                         
Other income/(expense)
    8.9             (2.1 )
                         
OPERATING INCOME BEFORE TAX
    287.5       521.3       196.3  
                         
OTHER
                       
Net realized and unrealized exchange gains/(losses)
    2.2       2.0       (8.2 )
Net realized and unrealized investment gains/(losses)
    50.6       11.4       (47.9 )
                         
INCOME BEFORE TAX
    340.3       534.7       140.2  
Income tax expense
    (27.6 )     (60.8 )     (36.4 )
                         
NET INCOME AFTER TAX
    312.7       473.9       103.8  
Dividends paid on ordinary shares
    (46.5 )     (49.8 )     (50.2 )
Dividends paid on preference shares
    (22.8 )     (23.8 )     (27.7 )
                         
                         
Retained income
    $243.4       $400.3       $25.9  
                         
Components of net income after tax
                       
  Operating income     $265.7       $464.3       $151.5  
  Net realized and unrealized exchange gains/(losses) after tax     2.9       2.0       (8.2 )
  Net realized and unrealized investment gains/(losses) after tax     44.1       7.6       (39.5 )
                         
NET INCOME AFTER TAX
    $312.7       $473.9       $103.8  
                         
Loss ratio
    65.8%       52.0%       65.8%  
  Policy acquisition expense ratio     17.3%       18.3%       17.6%  
  Operating and administrative expense ratio     13.6%       13.8%       12.2%  
Expense ratio
    30.9%       32.1%       29.8%  
Combined ratio
    96.7%       84.1%       95.6%  
 
See pages 7, 26 and 28 for a reconciliation of non-GAAP financial measures to their most directly comparable GAAP financial measures.


4


Table of Contents

(ASPEN LOGO)
 
 
Aspen Insurance Holdings Limited
Consolidated Balance Sheets
 
                                         
    December 31,
    September 30,
    June 30,
    March 31,
    December 31,
 
(in US$ millions, except for per share amounts)   2010     2010     2010     2010     2009  
 
 
ASSETS
Investments
                                       
Fixed income maturities     $5,766.6       $5,963.1       $5,753.6       $5,661.8       $5,598.0  
Other investments     30.0       28.7       27.8       27.5       27.3  
Short-term investments     289.7       299.5       304.3       251.9       371.7  
                                         
Total investments     6,086.3       6,291.3       6,085.7       5,941.2       5,997.0  
                                         
Cash and cash equivalents
    1,179.1       914.3       726.1       701.4       748.4  
Reinsurance recoverables
                                       
Unpaid losses     279.9       263.8       247.6       262.9       321.5  
Ceded unearned premiums     62.4       43.4       106.2       210.2       103.8  
Receivables
                                       
Underwriting premiums     821.7       880.7       981.0       914.0       708.3  
Other     67.9       81.9       73.4       62.2       64.1  
Funds withheld
    83.3       79.0       83.5       73.6       85.1  
Deferred policy acquisition costs
    166.8       187.2       201.2       202.7       165.5  
Derivatives at fair value
    6.8       1.5       4.3       4.9       6.7  
Receivable for securities sold
    0.2       2.1       16.9       13.5       11.9  
Office properties and equipment
    34.8       32.3       28.4       27.6       27.5  
Other assets
    21.9       20.7       16.0       14.9       9.2  
Intangible assets
    21.0       21.4       11.5       12.0       8.2  
                                         
Total assets     $8,832.1       $8,819.6       $8,581.8       $8,441.1       $8,257.2  
                                         
 
LIABILITIES
Insurance reserves
                                       
Losses and loss adjustment expenses     $3,820.5       $3,672.2       $3,485.7       $3,452.0       $3,331.1  
Unearned premiums     859.0       951.6       1,061.2       1,107.8       907.6  
                                         
Total insurance reserves     4,679.5       4,623.8       4,546.9       4,559.8       4,238.7  
                                         
Payables
                                       
Reinsurance premiums     113.7       141.9       159.3       193.2       110.8  
Taxation     60.2       91.7       74.2       77.4       94.2  
Accrued expenses and other payables     238.0       268.0       242.3       213.5       249.3  
Liabilities under derivative contracts           3.8       5.6       7.4       9.2  
                                         
Total payables     411.9       505.4       481.4       491.5       463.5  
                                         
Long-term debt
    498.8       249.7       249.6       249.6       249.6  
                                         
Total liabilities     5,590.2       5,378.9       5,277.9       5,300.9       4,951.8  
                                         
SHAREHOLDERS’ EQUITY
                                       
Ordinary shares
    0.1       0.1       0.1       0.1       0.1  
Minority interest
    0.5       0.6                    
Preference shares
                             
Additional paid-in capital
    1,388.3       1,561.5       1,566.2       1,565.0       1,763.0  
Retained earnings
    1,528.7       1,452.9       1,377.3       1,285.8       1,285.0  
Accumulated other comprehensive income, net of taxes
    324.3       425.6       360.3       289.3       257.3  
                                         
Total shareholders’ equity     3,241.9       3,440.7       3,303.9       3,140.2       3,305.4  
                                         
Total liabilities and shareholders’ equity     $8,832.1       $8,819.6       $8,581.8       $8,441.1       $8,257.2  
                                         
Book value per ordinary share
    $40.96       $40.28       $38.46       $36.25       $35.42  
                                         
See pages 7, 26 and 28 for a reconciliation of non-GAAP financial measures to their most directly comparable GAAP financial measures.


5


Table of Contents

(ASPEN LOGO)
 
Aspen Insurance Holdings Limited
 
Earnings Per Share and Book Value Per Share
 
                                 
    Three Months Ended     Twelve Months Ended  
    December 31,
    December 31,
    December 31,
    December 31,
 
(in US$ except for number of shares)   2010     2009     2010     2009  
 
Basic earnings per ordinary share
                               
Net income adjusted for preference share dividend and cancellation of preference shares
    $1.18       $1.45       $3.80       $5.82  
Operating income adjusted for preference share dividend
    $1.08       $1.48       $3.18       $5.33  
Diluted earnings per ordinary share
                               
Net income adjusted for preference share dividend and cancellation of preference shares
    $1.12       $1.40       $3.62       $5.64  
Operating income adjusted for preference share dividend
    $1.02       $1.44       $3.03       $5.16  
Weighted average number of ordinary shares outstanding (in millions)
    73.996       83.239       76.343       82.698  
Weighted average number of ordinary shares outstanding and dilutive potential ordinary shares (in millions)
    77.733       86.412       80.016       85.327  
Book value per ordinary share
    $40.96       $35.42       $40.96       $35.42  
Diluted book value per ordinary share (treasury stock method)
    $38.90       $34.14       $38.90       $34.14  
Ordinary shares outstanding at end of the period (in millions)
    70.508       83.328       70.508       83.328  
Ordinary shares outstanding and dilutive potential ordinary shares at end of the period (treasury stock method) (in millions)
    74.253       86.465       74.253       86.465  
 
 
See pages 7, 26 and 28 for a reconciliation of non-GAAP financial measures to their most directly comparable GAAP financial measures.


6


Table of Contents

(ASPEN LOGO)
 
 
Aspen Insurance Holdings Limited
 
Return On Average Equity
 
                                 
    Three Months Ended     Twelve Months Ended  
(in US$ millions except for percentages)   December 31, 2010     December 31, 2009     December 31, 2010     December 31, 2009  
 
Average shareholders’ equity for the quarter and the year to date
    $3,341.3       $3,258.8       $3,288.4       $3,016.9  
Average preference shares for the quarter and the year to date
    (353.6 )     (353.6 )     (353.6 )     (368.7 )
Average cumulative foreign currency translation adjustments, net of taxes, for the quarter and the year to date
    (111.8 )     (98.4 )     (109.5 )     (86.2 )
Average unrealized (appreciation)/depreciation on investments, net of taxes, for the quarter and the year to date
    (263.2 )     (167.6 )     (228.1 )     (109.6 )
                                 
Average equity
    $2,612.7       $2,639.2       $2,597.2       $2,452.4  
                                 
Return on average equity:
                               
Net income adjusted for preference share dividend
    3.3%       4.6%       11.2%       18.4%  
Operating income adjusted for preference share dividend
    3.0%       4.7%       9.4%       18.0%  
Annualized return on average equity:
                               
Net income
    13.2%       18.4%       11.2%       18.4%  
Operating income
    12.0%       18.8%       9.4%       18.0%  
Components of return on average equity:
                               
Return on average equity from underwriting activity (1)
    0.9%       2.8%       2.4%       11.8%  
Return on average equity from investment and other activity (2)
    2.2%       1.9%       7.8%       8.5%  
Pre-tax operating income return on average equity
    3.1%       4.7%       10.2%       20.3%  
Post-tax operating income return on average equity (3)
    3.0%       4.7%       9.4%       18.0%  
 
 
See pages 7, 26 and 28 for a reconciliation of non-GAAP financial measures to their most directly comparable GAAP financial measures.
 
1.   Calculated by using underwriting income.
 
2.   Calculated by using total other operating revenue and other income/expense adjusted for preference share dividend.
 
3.   Calculated by using operating income after-tax adjusted for preference share dividend.


7


Table of Contents

(ASPEN LOGO)
 
 
Aspen Insurance Holdings Limited
 
Changes to Segmental Reporting
 
(PERFORMANCE GRAPH)
 
 
As a result of a shift in the Company’s operating structure and the implementation of a number of strategic initiatives in 2010, the Company changed the composition of its business segments to reflect the manner in which the business is managed. The Company is currently organized into two underwriting segments: insurance and reinsurance, with an additional segment for corporate and other. These segments form the basis of how the Company monitors the performance of its operations.
 
* Structured business was previously allocated to Property Reinsurance, Casualty Reinsurance and International Insurance on an individual contract basis. In the new basis, all structured business will be included in Specialty Reinsurance within the reinsurance segment.


8


Table of Contents

(ASPEN LOGO)
 
 
Aspen Insurance Holdings Limited
 
Consolidated Underwriting Results by Operating Segment
 
Management has changed the composition of its business segments as a result of a shift in the Company’s operating structure in 2010. An explanation of the changes to the segments is included on page 8. The results under the previous segments are shown in the appendix, pages A1 to A7. Information related to prior periods has been re-presented to conform to the current period presentation. There was no effect on net income as a result of these changes.
 
                                                 
    Three Months Ended December 31, 2010     Three Months Ended December 31, 2009  
(in US$ millions except for percentages)   Reinsurance     Insurance     Total     Reinsurance     Insurance     Total  
 
Gross written premiums
    $152.8       $260.0       $412.8       $169.7       $236.0       $405.7  
Net written premiums
    148.5       246.7       395.2       158.3       225.1       383.4  
Gross earned premiums
    303.9       246.5       550.4       306.5       222.2       528.7  
Net earned premiums
    292.1       207.6       499.7       289.0       187.2       476.2  
Losses and loss expenses
    146.8       160.6       307.4       115.3       112.2       227.5  
Policy acquisition expenses
    58.8       31.8       90.6       62.1       33.0       95.1  
Operating and administrative expenses
    32.8       33.5       66.3       30.3       30.0       60.3  
                                                 
Underwriting income/(loss)
    $53.7       $(18.3 )     $35.4       $81.3       $12.0       $93.3  
                                                 
Net investment income
                    57.0                       58.2  
Net realized gains/(losses)
                    10.5                       4.2  
Corporate (expenses)
                    (12.2 )                     (20.0 )
Other income
                    10.1                       0.9  
Interest (expenses)
                    (4.8 )                     (3.8 )
Net foreign exchange gains/(losses)
                    (0.1 )                     (6.7 )
                                                 
Income before income taxes
                    95.9                       126.1  
Income tax (expense)/recovery
                    (3.2 )                     0.2  
                                                 
Net income
                    $92.7                       $126.3  
                                                 
Ratios
                                               
Loss ratio
    50.3%       77.4%       61.5%       39.9%       59.9%       47.8%  
Policy acquisition expense ratio
    20.1%       15.3%       18.1%       21.5%       17.6%       20.0%  
Operating and administrative expense ratio
    11.2%       16.1%       15.7%       10.5%       16.0%       16.9%  
Expense ratio
    31.3%       31.4%       33.8%       32.0%       33.6%       36.9%  
Combined ratio
    81.6%       108.8%       95.3%       71.9%       93.5%       84.7%  


9


Table of Contents

(ASPEN LOGO)
 
 
Aspen Insurance Holdings Limited
 
Consolidated Underwriting Results by Operating Segment
 
Management has changed the composition of its business segments as a result of a shift in the Company’s operating structure in 2010. An explanation of the changes to the segments is included on page 8. The results under the previous segments are shown in the appendix, pages A1 to A7. Information related to prior periods has been re-presented to conform to the current period presentation. There was no effect on net income as a result of these changes.
 
                                                 
    Twelve Months Ended December 31, 2010     Twelve Months Ended December 31, 2009  
(in US$ millions except for percentages)   Reinsurance     Insurance     Total     Reinsurance     Insurance     Total  
 
Gross written premiums
    $1,162.2       $914.6       $2,076.8       $1,176.0       $891.1       $2,067.1  
Net written premiums
    1,118.5       772.6       1,891.1       1,116.7       720.1       1,836.8  
Gross earned premiums
    1,186.4       907.9       2,094.3       1,164.4       871.0       2,035.4  
Net earned premiums
    1,141.8       757.1       1,898.9       1,108.1       714.9       1,823.0  
Losses and loss expenses
    693.5       555.2       1,248.7       467.3       480.8       948.1  
Policy acquisition expenses
    202.4       126.1       328.5       214.6       119.5       334.1  
Operating and administrative expenses
    112.3       99.4       211.7       97.5       100.7       198.2  
                                                 
Underwriting income/(loss)
    $133.6       $(23.6 )     $110.0       $328.7       $13.9       $342.6  
                                                 
Net investment income
                    232.0                       248.5  
Net realized gains/(losses)
                    50.6                       11.4  
Corporate (expenses)
                    (46.9 )                     (54.2 )
Other income
                    8.9                        
Interest (expenses)
                    (16.5 )                     (15.6 )
Net foreign exchange gains/(losses)
                    2.2                       2.0  
                                                 
Income before income taxes
                    340.3                       534.7  
Income tax (expense)
                    (27.6 )                     (60.8 )
                                                 
Net income
                    $312.7                       $473.9  
                                                 
Ratios
                                               
Loss ratio
    60.7%       73.3%       65.8%       42.2%       67.3%       52.0%  
Policy acquisition expense ratio
    17.7%       16.7%       17.3%       19.4%       16.7%       18.3%  
Operating and administrative expense ratio
    9.8%       13.1%       13.6%       8.8%       14.1%       13.8%  
Expense ratio
    27.5%       29.8%       30.9%       28.2%       30.8%       32.1%  
Combined ratio
    88.2%       103.1%       96.7%       70.4%       98.1%       84.1%  


10


Table of Contents

(ASPEN LOGO)
 
Aspen Insurance Holdings Limited
 
Reinsurance Segment — Quarterly Results
 
                                                                 
(in US$ millions except for percentages)   Q4 2010     Q3 2010     Q2 2010     Q1 2010     Q4 2009     Q3 2009     Q2 2009     Q1 2009  
 
Gross written premiums
    $152.8       $236.0       $283.3       $490.1       $169.7       $296.1       $257.4       $452.8  
Net written premiums
    148.5       229.6       279.1       461.3       158.3       289.3       255.8       413.3  
Gross earned premiums
    303.9       277.9       302.7       301.9       306.5       301.4       268.8       287.7  
Net earned premiums
    292.1       267.5       291.2       291.0       289.0       288.4       255.5       275.2  
Net losses and loss expenses
    146.8       143.5       146.4       256.8       115.3       127.1       102.8       122.1  
Policy acquisition expenses
    58.8       43.9       47.3       52.4       62.1       49.3       51.8       51.4  
Operating and administrative expenses
    32.8       27.1       30.1       22.3       30.3       25.7       23.1       18.4  
                                                                 
Underwriting income/(loss)
    $53.7       $53.0       $67.4       $(40.5 )     $81.3       $86.3       $77.8       $83.3  
                                                                 
Ratios
                                                               
Loss ratio
    50.3%       53.6%       50.3%       88.2%       39.9%       44.1%       40.2%       44.4%  
Policy acquisition expense ratio
    20.1%       16.4%       16.2%       18.0%       21.5%       17.1%       20.3%       18.7%  
Operating and administrative expense ratio
    11.2%       10.1%       10.3%       7.7%       10.5%       8.9%       9.0%       6.7%  
Expense ratio
    31.3%       26.5%       26.5%       25.7%       32.0%       26.0%       29.3%       25.4%  
Combined ratio
    81.6%       80.1%       76.8%       113.9%       71.9%       70.1%       69.5%       69.8%  


11


Table of Contents

(ASPEN LOGO)
 
Aspen Insurance Holdings Limited
 
Insurance Segment — Quarterly Results
 
                                                                 
(in US$ millions except for percentages)   Q4 2010     Q3 2010     Q2 2010     Q1 2010     Q4 2009     Q3 2009     Q2 2009     Q1 2009  
 
Gross written premiums
    $260.0       $179.8       $262.1       $212.7       $236.0       $194.2       $276.9       $184.0  
Net written premiums
    246.7       147.4       259.7       118.8       225.1       172.8       228.9       93.3  
Gross earned premiums
    246.5       225.4       220.8       215.2       222.2       220.8       222.5       205.5  
Net earned premiums
    207.6       184.2       188.7       176.6       187.2       182.5       173.1       172.1  
Net losses and loss expenses
    160.6       142.3       130.3       122.0       112.2       108.0       131.9       128.7  
Policy acquisition expenses
    31.8       31.7       30.5       32.1       33.0       30.3       29.0       27.2  
Operating and administrative expenses
    33.5       23.6       21.9       20.4       30.0       23.3       27.1       20.3  
                                                                 
Underwriting (loss)/income
    $(18.3 )     $(13.4 )     $6.0       $2.1       $12.0       $20.9       $(14.9 )     $(4.1 )
                                                                 
Ratios
                                                               
Loss ratio
    77.4%       77.3%       69.1%       69.1%       59.9%       59.2%       76.2%       74.8%  
Policy acquisition expense ratio
    15.3%       17.2%       16.2%       18.2%       17.6%       16.6%       16.8%       15.8%  
Operating and administrative expense ratio
    16.1%       12.8%       11.6%       11.6%       16.0%       12.8%       15.7%       11.8%  
Expense ratio
    31.4%       30.0%       27.8%       29.8%       33.6%       29.4%       32.5%       27.6%  
Combined ratio
    108.8%       107.3%       96.9%       98.9%       93.5%       88.6%       108.7%       102.4%  


12


Table of Contents

(ASPEN LOGO)
 
 
Aspen Insurance Holdings Limited
 
Gross Written Premiums by Segment And Line Of Business
 
                                                                 
(in US$ millions)   Q4 2010     Q3 2010     Q2 2010     Q1 2010     Q4 2009     Q3 2009     Q2 2009     Q1 2009  
 
Gross Written Premium
                                                               
Reinsurance
                                                               
Property Catastrophe Reinsurance
    $4.2       $51.3       $91.2       $146.2       $0.9       $58.1       $78.5       $116.7  
Other Property Reinsurance
    48.2       66.3       80.7       73.7       63.9       75.5       85.8       88.8  
Casualty Reinsurance
    44.5       70.0       51.5       174.5       50.3       79.1       46.7       175.8  
Specialty Reinsurance
    55.9       48.4       59.9       95.7       54.6       83.4       46.4       71.5  
                                                                 
Total Reinsurance
    $152.8       $236.0       $283.3       $490.1       $169.7       $296.1       $257.4       $452.8  
                                                                 
Insurance
                                                               
Property Insurance
    $28.7       $37.0       $69.3       $36.7       $28.5       $30.5       $54.9       $25.3  
Casualty Insurance
    42.7       23.6       44.7       37.2       47.9       53.1       52.9       42.2  
Marine, Energy and Transportation Insurance
    136.3       70.1       118.1       110.6       124.9       75.0       149.4       94.1  
Financial and Professional Lines Insurance
    52.3       49.1       30.0       28.2       34.7       35.6       19.7       22.4  
                                                                 
Total Insurance
    $260.0       $179.8       $262.1       $212.7       $236.0       $194.2       $276.9       $184.0  
                                                                 
Total Gross Written Premiums
    $412.8       $415.8       $545.4       $702.8       $405.7       $490.3       $534.3       $636.8  
                                                                 
Net Written Premium
                                                               
Reinsurance
                                                               
Property Catastrophe Reinsurance
    $3.9       $45.4       $88.1       $130.9       $(3.7 )     $48.3       $76.6       $87.2  
Other Property Reinsurance
    46.1       65.3       79.6       65.5       57.6       76.1       86.1       80.0  
Casualty Reinsurance
    44.5       70.0       51.3       169.6       51.0       81.5       46.6       174.8  
Specialty Reinsurance
    54.0       48.9       60.1       95.3       53.4       83.4       46.5       71.3  
                                                                 
Total Reinsurance
    $148.5       $229.6       $279.1       $461.3       $158.3       $289.3       $255.8       $413.3  
                                                                 
Insurance
                                                               
Property Insurance
    $25.3       $30.7       $62.4       $14.9       $19.5       $23.9       $45.4       $(1.9 )
Casualty Insurance
    36.4       20.6       41.7       27.4       36.7       45.2       45.1       36.4  
Marine, Energy and Transportation Insurance
    136.0       57.5       130.8       70.3       125.4       68.9       144.4       55.4  
Financial and Professional Lines Insurance
    49.0       38.6       24.8       6.2       43.5       34.8       (6.0 )     3.4  
                                                                 
Total Insurance
    $246.7       $147.4       $259.7       $118.8       $225.1       $172.8       $228.9       $93.3  
                                                                 
Total Net Written Premiums
    $395.2       $377.0       $538.8       $580.1       $383.4       $462.1       $484.7       $506.6  
                                                                 
Net Earned Premium
                                                               
Reinsurance
                                                               
Property Catastrophe Reinsurance
    $63.1       $66.5       $66.2       $70.6       $49.8       $55.3       $52.7       $49.4  
Other Property Reinsurance
    63.0       61.0       67.8       63.5       79.3       67.4       68.9       81.2  
Casualty Reinsurance
    90.0       84.8       90.3       89.0       93.3       94.6       87.7       96.6  
Specialty Reinsurance
    76.0       55.2       66.9       67.9       66.6       71.1       46.2       48.0  
                                                                 
Total Reinsurance
    $292.1       $267.5       $291.2       $291.0       $289.0       $288.4       $255.5       $275.2  
                                                                 
Insurance
                                                               
Property Insurance
    $31.0       $33.2       $30.1       $25.8       $17.3       $21.9       $19.1       $18.9  
Casualty Insurance
    26.7       24.9       39.8       38.9       42.7       43.6       43.2       46.2  
Marine, Energy and Transportation Insurance
    124.3       94.6       97.4       94.3       103.8       98.1       99.7       88.0  
Financial and Professional Lines Insurance
    25.6       31.5       21.4       17.6       23.4       18.9       11.1       19.0  
                                                                 
Total Insurance
    $207.6       $184.2       $188.7       $176.6       $187.2       $182.5       $173.1       $172.1  
                                                                 
Total Net Earned Premiums
    $499.7       $451.7       $479.9       $467.6       $476.2       $470.9       $428.6       $447.3  
                                                                 


13


Table of Contents

(ASPEN LOGO)
 
 
Aspen Insurance Holdings Limited
 
Accident Year Loss Ratios
 
                                                 
    Three Months Ended December 31, 2010     Three Months Ended December 31, 2009  
    Reinsurance     Insurance     Total     Reinsurance     Insurance     Total  
 
Before Accident Year Adjustment
                                               
Loss ratio
    50.3%       77.4%       61.5%       39.9%       59.9%       47.8%  
Policy acquisition expense ratio
    20.1%       15.3%       18.1%       21.5%       17.6%       20.0%  
Operating and administrative expense ratio
    11.2%       16.1%       15.7%       10.5%       16.0%       16.9%  
Expense ratio
    31.3%       31.4%       33.8%       32.0%       33.6%       36.9%  
                                                 
Combined ratio
    81.6%       108.8%       95.3%       71.9%       93.5%       84.7%  
                                                 
Accident Year Adjustment
                                               
Loss ratio
    13.1%       (7.7% )     4.5%       10.2%       (3.9% )     5.1%  
Policy acquisition expense ratio
    (3.6% )     0.4%       (1.9% )     (0.1% )     0.2%        
Operating and administrative expense ratio
    0.2%       1.1%       0.5%       0.8%       0.6%       0.9%  
Expense ratio
    (3.4% )     1.5%       (1.4% )     0.7%       0.8%       0.9%  
                                                 
Combined ratio
    9.7%       (6.2% )     3.1%       10.9%       (3.1% )     6.0%  
                                                 
Accident Year Ratios
                                               
Current accident year loss ratio
    63.4%       69.7%       66.0%       50.1%       56.0%       52.9%  
Policy acquisition expense ratio
    16.5%       15.7%       16.2%       21.4%       17.8%       20.0%  
Operating and administrative expense ratio
    11.4%       17.2%       16.2%       11.3%       16.6%       17.8%  
Expense ratio
    27.9%       32.9%       32.4%       32.7%       34.4%       37.8%  
                                                 
Combined ratio
    91.3%       102.6%       98.4%       82.8%       90.4%       90.7%  
                                                 


14


Table of Contents

(ASPEN LOGO)
 
 
Aspen Insurance Holdings Limited
 
Accident Year Loss Ratios
 
                                                 
    Twelve Months Ended December 31, 2010     Twelve Months Ended December 31, 2009  
    Reinsurance     Insurance     Total     Reinsurance     Insurance     Total  
 
Before Accident Year Adjustment
                                               
Loss ratio
    60.7%       73.3%       65.8%       42.2%       67.3%       52.0%  
Policy acquisition expense ratio
    17.7%       16.7%       17.3%       19.4%       16.7%       18.3%  
Operating and administrative expense ratio
    9.8%       13.1%       13.6%       8.8%       14.1%       13.8%  
Expense ratio
    27.5%       29.8%       30.9%       28.2%       30.8%       32.1%  
                                                 
Combined ratio
    88.2%       103.1%       96.7%       70.4%       98.1%       84.1%  
                                                 
Accident Year Adjustment
                                               
Loss ratio
    7.0%       (4.3% )     2.5%       9.7%       (0.7% )     5.7%  
Policy acquisition expense ratio
    (1.0% )           (0.6% )     (0.3% )     0.1%       (0.1% )
Operating and administrative expense ratio
    0.2%       0.4%       0.3%       0.1%       0.5%       0.3%  
Expense ratio
    (0.8% )     0.4%       (0.3% )     (0.2% )     0.6%       0.2%  
                                                 
Combined ratio
    6.2%       (3.9% )     2.2%       9.5%       (0.1% )     5.9%  
                                                 
Accident Year Ratios
                                               
Current accident year loss ratio
    67.7%       69.0%       68.3%       51.9%       66.6%       57.7%  
 Policy acquisition expense ratio
    16.7%       16.7%       16.7%       19.1%       16.8%       18.2%  
 Operating and administrative expense ratio
    10.0%       13.5%       13.9%       8.9%       14.6%       14.1%  
Expense ratio
    26.7%       30.2%       30.6%       28.0%       31.4%       32.3%  
                                                 
Combined ratio
    94.4%       99.2%       98.9%       79.9%       98.0%       90.0%  
                                                 


15


Table of Contents

(ASPEN LOGO)
 
 
Aspen Insurance Holdings Limited
 
Consolidated Statements of Changes in Shareholders’ Equity
 
                 
    Twelve Months Ended December 31,  
(in US$ millions)   2010     2009  
 
Ordinary shares
               
  Beginning and end of period
    $0.1     $ 0.1  
                 
Preference shares
               
  Beginning and end of period
           
                 
Minority Interest
               
  Beginning of period
           
  Introductory capital
    0.8        
  Change in Minority Interest for the year
    (0.3 )      
                 
  End of period
    0.5        
                 
Additional paid-in capital
               
  Beginning of period
    1,763.0       1,754.8  
  New shares issued
    20.3       25.1  
  Ordinary shares repurchased
    (407.8 )      
  Preference shares repurchased
          (34.1 )
  Share-based compensation
    12.8       17.2  
                 
  End of period
    1,388.3       1,763.0  
                 
Retained earnings
               
  Beginning of period
    1,285.0       884.7  
  Net income for the period
    312.7       473.9  
  Dividends paid on ordinary and preference shares
    (69.3 )     (73.6 )
  Proportion of net (income)/loss due to Minority Interest
    0.3        
                 
  End of period
    1,528.7       1,285.0  
                 
Accumulated other comprehensive income:
               
Cumulative foreign currency translation adjustments, net of taxes:
               
  Beginning of period
    103.4       87.6  
  Change for the period
    10.0       15.8  
                 
  End of period
    113.4       103.4  
                 
Loss on derivatives:
               
  Beginning of period
    (1.2 )     (1.4 )
  Reclassification to interest payable
    0.2       0.2  
                 
  End of period
    (1.0 )     (1.2 )
                 
Unrealized appreciation (depreciation) on investments, net of taxes:
               
  Beginning of period
    155.1       53.3  
  Change for the period
    56.8       101.8  
                 
  End of period
    211.9       155.1  
                 
Total accumulated other comprehensive income
    324.3       257.3  
                 
Total shareholders’ equity
    $3,241.9     $ 3,305.4  
                 


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Table of Contents

(ASPEN LOGO)
 
 
Aspen Insurance Holdings Limited
 
Consolidated Statements of Comprehensive Income
 
                                 
    Three Months Ended December 31,     Twelve Months Ended December 31,  
(in US$ millions)   2010     2009     2010     2009  
 
Net income
    $92.7     $ 126.3     $ 312.7     $ 473.9  
                                 
Other comprehensive income/(loss), net of taxes:
                               
Available for sale investments:
                               
Reclassification adjustment for net realized (gains)/losses included in net income
    (10.3 )     (11.2 )     (21.0 )     3.8  
Change in net unrealized gains and losses on available for sale securities held
    (94.3 )     (16.3 )     77.8       98.0  
Loss on derivatives reclassified to interest expense
          0.1       0.2       0.2  
Change in foreign currency translation adjustment
    3.3       10.1       10.0       15.8  
                                 
Other comprehensive income/(loss)
    (101.3 )     (17.3 )     67.0       117.8  
                                 
Comprehensive income
    $(8.6 )   $ 109.0     $ 379.7     $ 591.7  
                                 


17


Table of Contents

(ASPEN LOGO)
 
 
Aspen Insurance Holdings Limited
 
Condensed Consolidated Statements of Cash Flows
 
                                 
    Three Months Ended December 31,     Twelve Months Ended December 31,  
(in US$ millions)   2010     2009     2010     2009  
 
Net cash from/(used in) operating activities
    $122.3     $ 157.5     $ 624.6     $ 646.6  
Net cash from/(used in) investing activities
    98.7       (345.8 )     17.6       (682.4 )
Net cash from/(used in) financing activities
    52.4       (18.1 )     (207.1 )     (82.6 )
Effect of exchange rate movements on cash and cash equivalents
    (8.6 )     6.0       (4.4 )     57.7  
                                 
Increase/(decrease) in cash and cash equivalents
    264.8       (200.4 )     430.7       (60.7 )
Cash at beginning of period
    914.3       948.8       748.4       809.1  
                                 
Cash at end of period
    $1,179.1     $ 748.4     $ 1,179.1     $ 748.4  
                                 


18


Table of Contents

(ASPEN LOGO)
 
 
Aspen Insurance Holdings Limited
 
Reserves for Losses and Loss Expenses
 
                 
    As At
    As At
 
    December 31,
    December 31,
 
(in US$ millions)   2010     2009  
 
Provision for losses and loss expenses at start of period
    $3,331.1     $ 3,070.3  
Reinsurance recoverables
    (321.5 )     (283.3 )
                 
Net loss and loss expenses at start of period
    3,009.6       2,787.0  
                 
Net loss and loss expenses disposed
    (35.5 )     (10.0 )
                 
Provision for losses and loss expenses for claims incurred
               
Current period
    1,270.1       1,032.5  
Prior period release
    (21.4 )     (84.4 )
                 
Total incurred
    1,248.7       948.1  
                 
Losses and loss expense payments for claims incurred
    (666.8 )     (808.6 )
                 
Foreign exchange (gains)/losses
    (15.4 )     93.1  
                 
Net loss and loss expense reserves at end of period
    3,540.6       3,009.6  
Reinsurance recoverables on unpaid losses at end of period
    279.9       321.5  
                 
Gross loss and loss expense reserves at end of period
    $3,820.5     $ 3,331.1  
                 


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Table of Contents

(ASPEN LOGO)
 
 
Aspen Insurance Holdings Limited
 
Reserves By Operating Segment
 
                                                 
    As At December 31, 2010     As At December 31, 2009  
          Reinsurance
                Reinsurance
       
(in US$ millions)   Gross     Recoverables     Net     Gross     Recoverables     Net  
 
Reinsurance
    $2,304.6       $(60.7 )     $2,243.9       $2,069.4       $(81.0 )     $1,988.4  
Insurance
    1,515.9       (219.2 )     1,296.7       1,261.7       (240.5 )     1,021.2  
                                                 
Total losses and loss expense reserves
    $3,820.5       $(279.9 )     $3,540.6       $3,331.1       $(321.5 )     $3,009.6  
                                                 


20


Table of Contents

(ASPEN LOGO)
 
 
Aspen Insurance Holdings Limited
 
Prior Year Reserve Releases
 
                                                 
    Three Months Ended
    Three Months Ended
 
    December 31, 2010     December 31, 2009  
          Reinsurance
                Reinsurance
       
(in US$ millions)   Gross     Recoverables     Net     Gross     Recoverables     Net  
 
Reinsurance
    $34.1       $2.0       $36.1       $23.6       $(0.9 )     $22.7  
Insurance
    (48.6 )     25.1       (23.5 )     (28.6 )     19.3       (9.3 )
                                                 
(Strengthening)/release in reserves for prior years during the period
    $(14.5 )     $27.1       $12.6       $(5.0 )     $18.4       $13.4  
                                                 
 
                                                 
    Twelve Months Ended
    Twelve Months Ended
 
    December 31, 2010     December 31, 2009  
          Reinsurance
                Reinsurance
       
    Gross     Recoverables     Net     Gross     Recoverables     Net  
 
Reinsurance
    $66.4       $(0.8 )     $65.6       $99.2       $4.6       $103.8  
Insurance
    (73.6 )     29.4       (44.2 )     (70.8 )     51.4       (19.4 )
                                                 
(Strengthening)/release in reserves for prior years during the period
    $(7.2 )     $28.6       $21.4       $28.4       $56.0       $84.4  
                                                 


21


Table of Contents

(ASPEN LOGO)
 
 
Aspen Insurance Holdings Limited
 
Ratings of Reinsurers
 
                                 
(in US$ millions except for percentages)   As at December 31, 2010     As at December 31, 2009  
 
S&P
                               
AAA
    $—             $11.8       3.7%  
AA+
    7.5       2.7%              
AA−
    73.4       26.2%       76.0       23.6%  
A+
    133.0       47.5%       173.9       54.1%  
A
    12.9       4.6%       10.9       3.3%  
A−
    11.3       4.1%       12.5       3.9%  
BBB+
    2.5       0.9%              
BBB+
    0.6       0.2%              
Fully collateralized
                0.5       0.2%  
Not rated
    38.7       13.8%       35.9       11.2%  
                                 
      $279.9       100.0%       $321.5       100.0%  
                                 
A.M. Best
                               
A++
    $7.5       2.7%       $13.2       4.1%  
A+
    74.0       26.4%       57.0       17.7%  
A
    173.5       62.0%       226.2       70.4%  
A−
    15.7       5.6%       21.3       6.6%  
F
    0.7       0.3%              
Fully collateralized
                0.5       0.2%  
Not rated
    8.5       3.0%       3.3       1.0%  
                                 
      $279.9       100.0%       $321.5       100.0%  
                                 


22


Table of Contents

(ASPEN LOGO)
 
 
Aspen Insurance Holdings Limited
Consolidated Investment Portfolio
 
                                                                         
    As At December 31, 2010                                
          Gross
    Gross
          As At
    As At
    As At
    As At
    As At
 
    Amortized
    Unrealized
    Unrealized
          December 31,
    September 30,
    June 30,
    March 31,
    December 31,
 
(in US$ millions except for percentages)   Cost     Gains     Losses     Fair Value     2010     2010     2010     2010     2009  
 
Marketable Securities — Available For Sale
                                                                       
U.S. government securities
    $701.5       $25.5       $(1.6 )     $725.4       9.9%       10.9%       10.4%       9.7%       7.5%  
U.S. agency securities
    278.7       23.6             302.3       4.1%       4.8%       5.0%       5.2%       5.7%  
Municipal securities
    31.1       0.4       (0.8 )     30.7       0.4%       0.4%       0.6%       0.4%       0.3%  
Corporate securities
    2,208.4       121.0       (3.7 )     2,325.7       31.8%       33.3%       33.8%       33.4%       33.3%  
Foreign government securities
    601.0       16.9       (1.0 )     616.9       8.4%       8.2%       7.9%       8.4%       7.7%  
Asset-backed securities
    54.0       4.8             58.8       0.8%       1.1%       1.1%       1.3%       1.7%  
Mortgage-backed securities
    1,246.1       57.1       (2.6 )     1,300.6       17.8%       17.8%       19.6%       20.7%       21.1%  
                                                                         
Total fixed income maturities
    5,120.8       249.3       (9.7 )     5,360.4       73.2%       76.5%       78.4%       79.1%       77.3%  
Short-term investments
    286.1             (0.1 )     286.0       3.9%       4.1%       4.4%       3.8%       5.4%  
                                                                         
Total Available For Sale
    $5,406.9       $249.3       $(9.8 )     $5,646.4       77.1%       80.6%       82.8%       82.9%       82.7%  
                                                                         
Marketable Securities — Trading
                                                                       
U.S. government securities
    $48.9       $0.1       $(0.7 )     $48.3       0.7%       0.6%       0.4%       0.1%       0.1%  
U.S. agency securities
    0.5                   0.5                                
Municipal securities
    3.2       0.1             3.3       0.1%                          
Corporate securities
    322.4       18.4       (1.0 )     339.8       4.6%       4.8%       4.8%       5.1%       4.8%  
Foreign government securities
    8.9       0.5             9.4       0.1%       0.1%       0.1%       0.1%       0.1%  
Asset-backed securities
    4.9                   4.9       0.1%       0.1%       0.1%       0.1%       0.1%  
                                                                         
Total fixed income maturities
    388.8       19.1       (1.7 )     406.2       5.6%       5.6%       5.4%       5.4%       5.1%  
Short-term investments
    3.7                   3.7       0.1%                          
                                                                         
Total Trading
    $392.5       $19.1       $(1.7 )     $409.9       5.7%       5.6%       5.4%       5.4%       5.1%  
                                                                         
Other investments
                            $30.0       0.4%       0.4%       0.4%       0.4%       0.4%  
                                                                         
Cash
                            1,179.1       16.1%       12.6%       10.6%       10.5%       11.0%  
Accrued interest
                            54.4       0.7%       0.8%       0.8%       0.8%       0.8%  
                                                                         
Total Cash and Accrued Interest
                            $1,233.5       16.8%       13.4%       11.4%       11.3%       11.8%  
                                                                         
Total Cash and Investments
                            $7,319.8       100.0%       100.0%       100.0%       100.0%       100.0%  
                                                                         


23


Table of Contents

(ASPEN LOGO)
 
Aspen Insurance Holdings Limited
 
Consolidated Investment Portfolio
 
                                 
    As At December 31, 2010     As At December 31, 2009  
    Amortized
    Fair Market
    Amortized
    Fair Market
 
(in US$ millions except for percentages)   Cost     Value     Cost     Value  
 
Maturity of Available For Sale Portfolio
                               
Due in one year or less
    $337.7       $343.8       $296.4       $301.4  
Due after one year through five years
    2,236.3       2,330.9       2,057.1       2,133.2  
Due after five years through ten years
    1,146.6       1,222.2       1,094.2       1,143.5  
Due after ten years
    100.1       104.1       121.0       124.9  
                                 
Subtotal
    3,820.7       4,001.0       3,568.7       3,703.0  
Non-agency residential mortgage-backed securities
                34.2       42.2  
Non-agency commercial mortgage-backed securities
    119.7       128.1       178.5       180.0  
Agency mortgage-backed securities
    1,126.4       1,172.5       1,172.9       1,209.6  
Other asset-backed securities
    54.0       58.8       110.0       115.1  
                                 
Total
    $5,120.8       $5,360.4       $5,064.3       $5,249.9  
                                 


24


Table of Contents

(ASPEN LOGO)
 
 
Aspen Insurance Holdings Limited
 
Investment Analysis
 
                                                                 
(in US$ millions except for percentages)   Q4 2010     Q3 2010     Q2 2010     Q1 2010     Q4 2009     Q3 2009     Q2 2009     Q1 2009  
 
Net investment income from fixed income investments and cash
    $57.0       $58.1       $57.5       $59.4       $58.6       $58.9       $56.0       $55.2  
Net investment income/(loss) from funds of hedge funds
                            (0.4 )           16.2       4.0  
                                                                 
Net investment income
    57.0       58.1       57.5       59.4       58.2       58.9       72.2       59.2  
Net realized investment gains
    10.5       22.1       5.7       12.6       7.5       16.4       7.7       3.1  
Other-than-temporary impairment charges
                      (0.3 )     (3.3 )     (1.8 )     (2.9 )     (15.3 )
Change in unrealized gains/(losses) on investments (gross of tax)
    (122.1 )     68.3       82.4       25.3       (33.1 )     106.3       41.7       3.3  
                                                                 
Total return on investments
    $(54.6 )     $148.5       $145.6       $97.0       $29.3       $179.8       $118.7       $50.3  
                                                                 
Portfolio Characteristics
                                                               
Fixed income portfolio book yield
    3.70%       3.91%       4.05%       4.23%       4.22%       4.13%       4.43%       4.42%  
Fixed income portfolio duration
    3.3 years       3.1 years       3.0 years       3.3 years       3.3 years       3.3 years       3.2 years       2.9 years  


25


Table of Contents

(ASPEN LOGO)
 
 
Aspen Insurance Holdings Limited
 
Book Value Per Ordinary Share
 
                                         
(in US$ millions except for number of shares and per share amounts)   December 31, 2010     September 30, 2010     June 30, 2010     March 31, 2010     December 31, 2009  
 
Net assets
    $3,241.9       $3,440.7       $3,303.9       $3,140.2       $3,305.4  
Less: Preference shares
    (353.6 )     (353.6 )     (353.6 )     (353.6 )     (353.6 )
                                         
Total
    $2,888.3       $3,087.1       $2,950.3       $2,786.6       $2,951.8  
                                         
Ordinary shares outstanding (in millions)
    70.508       76.642       76.701       76.865       83.328  
                                         
Ordinary shares and dilutive potential ordinary shares (in millions)
    74.253       80.765       79.831       80.495       86.465  
                                         
Book value per ordinary share
    $40.96       $40.28       $38.46       $36.25       $35.42  
                                         
Diluted book value per ordinary share (treasury stock method)
    $38.90       $38.23       $36.96       $34.62       $34.14  
                                         
 
 
The dilutive effect of options has been calculated using the treasury stock method. The treasury stock method assumes that the proceeds received from the exercise of options will be used to purchase the Company’s ordinary shares at the average market price during the period of calculation.


26


Table of Contents

(ASPEN LOGO)
 
 
Aspen Insurance Holdings Limited
 
 
                                 
    Three Months Ended December 31,     Twelve Months Ended December 31,  
Weighted average ordinary shares outstanding (millions)   2010     2009     2010     2009  
 
Basic
    73.996       83.239       76.343       82.698  
Dilutive share equivalents:
                               
Employee options
    0.870       0.925       0.874       0.775  
Options issued to Appleby Trust (Bermuda) Limited (Names Trust)
    0.451       0.362       0.430       0.275  
Performance shares
    2.061       1.703       2.071       1.396  
Restricted share units
    0.285       0.183       0.261       0.183  
PIERS*
    0.070             0.037        
                                 
Weighted average diluted shares outstanding
    77.733       86.412       80.016       85.327  
                                 
 
 
The dilutive effect of options has been calculated using the treasury stock method. The treasury stock method assumes that the proceeds received from the exercise of options will be used to purchase the Company’s ordinary shares at the average market price during the period of calculation.
 
* Preferred Income Equity Replacement Securities (PIERS)


27


Table of Contents

(ASPEN LOGO)
 
 
Aspen Insurance Holdings Limited
 
 
Net income is adjusted to exclude after-tax net foreign exchange gains and losses, realized gains and losses in investments and preference share repurchase gains in the first quarter of 2009.
 
                                 
    Three Months Ended     Twelve Months Ended  
(in US$ millions except where stated)   December 31, 2010     December 31, 2009     December 31, 2010     December 31, 2009  
 
Net income as reported
    $92.7       $126.3       $312.7       $473.9  
Preference share dividends
    (5.7 )     (5.5 )     (22.8 )     (23.8 )
Preference share repurchase gain
                      31.5  
                                 
Net income available to ordinary shareholders
    87.0       120.8       289.9       481.6  
Add (deduct) after tax income:
                               
Net foreign exchange (gains)/losses     (0.2 )     6.7       (2.9 )     (2.0 )
Net realized (gains)/losses on investments     (7.5 )     (3.8 )     (44.1 )     (7.6 )
Preference share repurchase gain                       (31.5 )
                                 
Operating income after tax available to ordinary shareholders
    79.3       123.7       242.9       440.5  
Tax on operating income
    0.5       (0.6 )     21.8       57.0  
                                 
Operating income before tax available to ordinary shareholders
    $79.8       $123.1       $264.7       $497.5  
                                 
Weighted average ordinary shares outstanding (millions)
                               
Basic
    73.996       83.239       76.343       82.698  
Dilutive share equivalents:
                               
Employee options
    0.870       0.925       0.874       0.775  
Options issued to Appleby Trust (Bermuda) Limited (Names Trust)
    0.451       0.362       0.430       0.275  
Performance shares
    2.061       1.703       2.071       1.396  
Restricted share units
    0.285       0.183       0.261       0.183  
PIERS*
    0.070             0.037        
                                 
Weighted average diluted shares outstanding
    77.733       86.412       80.016       85.327  
                                 
Basic earnings per ordinary share
                               
Net income adjusted for preference share dividend and preference share repurchase gain
    $1.18       $1.45       $3.80       $5.82  
Add (deduct) after tax income:
                               
Net foreign exchange (gains)/losses           0.08       (0.04 )     (0.02 )
Net realized (gains)/losses on investments     (0.10 )     (0.05 )     (0.58 )     (0.09 )
Preference share repurchase gain                       (0.38 )
                                 
Operating income adjusted for preference shares dividend
    $1.08       $1.48       $3.18       $5.33  
                                 
Diluted earnings per ordinary share
                               
Net income adjusted for preference share dividend and preference share repurchase gain
    $1.12       $1.40       $3.62       $5.64  
Add (deduct) after tax income:
                               
Net foreign exchange (gains)/losses           0.08       (0.04 )     (0.02 )
Net realized (gains)/losses on investments     (0.10 )     (0.04 )     (0.55 )     (0.09 )
Preference share repurchase gain                       (0.37 )
                                 
Operating income adjusted for preference shares dividend
    $1.02       $1.44       $3.03       $5.16  
                                 
 
* Preferred Income Equity Replacement Securities (PIERS)


28


 


Table of Contents

(ASPEN LOGO)
 
 
Aspen Insurance Holdings Limited
 
Consolidated Underwriting Results by Previous Operating Segment
 
                                                                                 
    Three Months Ended December 31, 2010     Three Months Ended December 31, 2009  
    Property
    Casualty
    International
    U.S.
          Property
    Casualty
    International
    U.S.
       
(in US$ millions except for percentages)   Reinsurance     Reinsurance     Insurance     Insurance     Total     Reinsurance     Reinsurance     Insurance     Insurance     Total  
 
Gross written premiums
    $74.4       $51.1       $257.5       $29.8       $412.8       $77.0       $65.8       $230.4       $32.5       $405.7  
Net written premiums
    74.4       51.1       245.8       23.9       395.2       67.2       66.5       227.6       22.1       383.4  
Gross earned premiums
    170.9       100.2       239.0       40.3       550.4       165.3       109.4       214.3       39.7       528.7  
Net earned premiums
    161.4       99.1       210.7       28.5       499.7       148.0       109.8       193.1       25.3       476.2  
Losses and loss expenses
    59.8       70.5       131.1       46.0       307.4       24.4       79.6       86.2       37.3       227.5  
Policy acquisition expenses
    34.2       18.6       32.3       5.5       90.6       34.7       21.6       33.7       5.1       95.1  
Operating and administrative expenses
    21.7       10.9       34.9       11.0       78.5       26.8       12.8       32.4       8.3       80.3  
                                                                                 
Underwriting income/(loss)
    $45.7       $(0.9 )     $12.4       $(34.0 )     $23.2       $62.1       $(4.2 )     $40.8       $(25.4 )     $73.3  
                                                                                 
Ratios
                                                                               
Loss ratio
    37.1%       71.1%       62.2%       161.4%       61.5%       16.5%       72.5%       44.6%       147.4%       47.8%  
Policy acquisition expense ratio
    21.2%       18.8%       15.3%       19.3%       18.1%       23.4%       19.7%       17.5%       20.2%       20.0%  
Operating and administrative expense ratio
    13.4%       11.0%       16.6%       38.6%       15.7%       18.1%       11.7%       16.8%       32.8%       16.9%  
Expense ratio
    34.6%       29.8%       31.9%       57.9%       33.8%       41.5%       31.4%       34.3%       53.0%       36.9%  
Combined ratio
    71.7%       100.9%       94.1%       219.3%       95.3%       58.0%       103.9%       78.9%       200.4%       84.7%  


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Table of Contents

(ASPEN LOGO)
 
 
Aspen Insurance Holdings Limited
 
Consolidated Underwriting Results by Previous Operating Segment
 
                                                                                 
    Twelve Months Ended December 31, 2010     Twelve Months Ended December 31, 2009  
    Property
    Casualty
    International
    U.S.
          Property
    Casualty
    International
    U.S.
       
(in US$ millions except for percentages)   Reinsurance     Reinsurance     Insurance     Insurance     Total     Reinsurance     Reinsurance     Insurance     Insurance     Total  
 
Gross written premiums
    $651.1       $361.4       $908.3       $156.0       $2,076.8       $648.7       $408.1       $847.7       $162.6       $2,067.1  
Net written premiums
    618.8       356.3       790.8       125.2       1,891.1       591.1       410.0       723.4       112.3       1,836.8  
Gross earned premiums
    656.8       395.6       886.2       155.7       2,094.3       616.8       434.1       836.7       147.8       2,035.4  
Net earned premiums
    619.8       391.1       769.1       118.9       1,898.9       560.0       435.7       726.1       101.2       1,823.0  
Losses and loss expenses
    329.1       306.2       505.7       107.7       1,248.7       121.7       293.4       443.6       89.4       948.1  
Policy acquisition expenses
    116.3       63.7       123.9       24.6       328.5       111.8       82.7       122.6       17.0       334.1  
Operating and administrative expenses
    80.8       39.8       100.2       37.8       258.6       78.1       42.8       98.3       33.2       252.4  
                                                                                 
Underwriting income/(loss)
    $93.6       $(18.6 )     $39.3       $(51.2 )     $63.1       $248.4       $16.8       $61.6       $(38.4 )     $288.4  
                                                                                 
Ratios
                                                                               
Loss ratio
    53.1%       78.3%       65.8%       90.6%       65.8%       21.7%       67.3%       61.1%       88.3%       52.0%  
  Policy acquisition expense ratio     18.8%       16.3%       16.1%       20.7%       17.3%       20.0%       19.0%       16.9%       16.8%       18.3%  
  Operating and administrative expense ratio     13.0%       10.2%       13.0%       31.8%       13.6%       13.9%       9.8%       13.5%       32.8%       13.8%  
Expense ratio
    31.8%       26.5%       29.1%       52.5%       30.9%       33.9%       28.8%       30.4%       49.6%       32.1%  
Combined ratio
    84.9%       104.8%       94.9%       143.1%       96.7%       55.6%       96.1%       91.5%       137.9%       84.1%  


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Table of Contents

(ASPEN LOGO)
 
 
Aspen Insurance Holdings Limited
 
Gross Written Premiums By Previous Segment And Line of Business
 
                                                                 
(in US$ millions)   Q4 2010     Q3 2010     Q2 2010     Q1 2010     Q4 2009     Q3 2009     Q2 2009     Q1 2009  
 
Property Reinsurance
                                                               
Treaty Catastrophe
    $4.2       $50.8       $90.7       $145.8       $2.3       $63.8       $78.4       $116.7  
Treaty Risk Excess
    0.3       25.9       31.3       26.8       9.2       26.8       37.2       31.3  
Treaty Pro Rata
    34.9       25.9       33.2       41.0       48.2       40.5       44.5       48.2  
Global Property Facultative
    10.0       11.6       11.0       13.3       11.4       12.8       11.6       17.0  
Credit and Surety Reinsurance
    17.5       20.0       18.2       18.7       5.9       27.3       8.3       7.3  
Agriculture
    7.5       3.0       6.4       3.1                          
                                                                 
      $74.4       $137.2       $190.8       $248.7       $77.0       $171.2       $180.0       $220.5  
                                                                 
Casualty Reinsurance
                                                               
U.S. Casualty Treaty
    $40.3       $45.5       $43.1       $104.5       $52.3       $74.8       $43.7       $106.3  
International Casualty Treaty
    5.6       22.3       10.1       71.5       8.3       16.3       12.5       77.0  
Global Casualty Facultative
    5.2       4.5       3.9       4.9       5.2       5.4       2.8       3.5  
                                                                 
      $51.1       $72.3       $57.1       $180.9       $65.8       $96.5       $59.0       $186.8  
                                                                 
International Insurance
                                                               
M.E.C. Liability
    $56.5       $14.7       $53.6       $61.3       $36.7       $19.7       $70.2       $50.8  
Energy Property
    10.3       23.0       23.5       14.3       9.6       16.5       41.0       16.4  
Marine Hull
    10.8       9.8       15.9       19.1       18.8       13.1       14.8       16.5  
Aviation
    56.0       20.4       21.6       13.5       57.3       23.5       21.6       10.4  
U.K. Commercial Property & Construction
    11.4       14.1       30.7       15.5       12.4       13.2       20.2       10.9  
U.K. Commercial Liability
    8.3       12.6       9.3       9.8       8.6       15.9       11.8       9.1  
Global Casualty
    26.9       8.6       18.1       15.7       24.5       20.8       21.9       14.5  
Professional Liability
    15.2       14.6       9.6       8.0       10.7       17.8       9.7       7.7  
Financial Institutions
    13.7       3.9       3.8       5.4       10.6       7.9       3.7       3.7  
Financial and Political Risks
    15.4       15.5       14.2       12.0       12.3       7.4       3.6       9.2  
Specie
    2.7       2.2       3.5       2.4       2.5       2.2       1.8        
Specialty Reinsurance
    22.2       23.6       31.1       59.1       26.4       25.9       18.4       45.5  
                                                                 
      $249.4       $163.0       $234.9       $236.1       $230.4       $183.9       $238.7       $194.7  
                                                                 
U.S. Insurance
                                                               
Property
    $17.3       $22.9       $38.6       $21.2       $16.1       $17.3       $34.7       $14.4  
Casualty
    15.6       17.3       19.9       14.4       15.9       18.9       21.9       20.4  
Risk Solutions
    5.0       3.1       4.1       1.5       0.5       2.5              
                                                                 
      $37.9       $43.3       $62.6       $37.1       $32.5       $38.7       $56.6       $34.8  
                                                                 
Total Gross Written Premiums
    $412.8       $415.8       $545.4       $702.8       $405.7       $490.3       $534.3       $636.8  
                                                                 


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Table of Contents

(ASPEN LOGO)
 
 
Aspen Insurance Holdings Limited
 
Accident Year Loss Ratios
 
                                                                                 
    Three Months Ended December 31, 2010     Three Months Ended December 31, 2009  
    Property
    Casualty
    International
    U.S.
          Property
    Casualty
    International
    U.S.
       
    Reinsurance     Reinsurance     Insurance     Insurance     Total     Reinsurance     Reinsurance     Insurance     Insurance     Total  
 
Before Accident Year Adjustment
                                                                               
Loss ratio
    37.1%       71.1%       62.2%       161.4%       61.5%       16.5%       72.5%       44.6%       147.4%       47.8%  
  Policy acquisition expense ratio     21.2%       18.8%       15.3%       19.3%       18.1%       23.4%       19.7%       17.5%       20.2%       20.0%  
  Operating and administrative expense ratio     13.4%       11.0%       16.6%       38.6%       15.7%       18.1%       11.7%       16.8%       32.8%       16.9%  
Expense ratio
    34.6%       29.8%       31.9%       57.9%       33.8%       41.5%       31.4%       34.3%       53.0%       36.9%  
                                                                                 
Combined ratio
    71.7%       100.9%       94.1%       219.3%       95.3%       58.0%       103.9%       78.9%       200.4%       84.7%  
                                                                                 
Accident Year Adjustment
                                                                               
Loss ratio
    15.6%       3.3%       8.2%       (76.5% )     4.5%       8.4%       10.4%       6.6%       (49.5% )     5.1%  
  Policy acquisition expense ratio     (3.8% )     (2.0% )     (0.9% )           (1.9% )     (0.8% )           0.2%       0.9%        
  Operating and administrative expense ratio     (0.1% )     0.7%       0.9%             0.5%       0.4%       0.3%       1.5%       2.7%       0.9%  
Expense ratio
    (3.9% )     (1.3% )                 (1.4% )     (0.4% )     0.3%       1.7%       3.6%       0.9%  
                                                                                 
Combined ratio
    11.7%       2.0%       8.2%       (76.5% )     3.1%       8.0%       10.7%       8.3%       (45.9% )     6.0%  
                                                                                 
Accident Year Ratios
                                                                               
Current accident year loss ratio
    52.7%       74.4%       70.4%       84.9%       66.0%       24.9%       82.9%       51.2%       97.9%       52.9%  
  Policy acquisition expense ratio     17.4%       16.8%       14.4%       19.3%       16.2%       22.6%       19.7%       17.7%       21.1%       20.0%  
  Operating and administrative expense ratio     13.3%       11.7%       17.5%       38.6%       16.2%       18.5%       12.0%       18.3%       35.5%       17.8%  
Expense ratio
    30.7%       28.5%       31.9%       57.9%       32.4%       41.1%       31.7%       36.0%       56.6%       37.8%  
                                                                                 
Combined ratio
    83.4%       102.9%       102.3%       142.8%       98.4%       66.0%       114.6%       87.2%       154.5%       90.7%  
                                                                                 


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Table of Contents

(ASPEN LOGO)
 
Aspen Insurance Holdings Limited
 
Accident Year Loss Ratios
 
                                                                                 
    Twelve Months Ended December 31, 2010     Twelve Months Ended December 31, 2009  
    Property
    Casualty
    International
    U.S.
          Property
    Casualty
    International
    U.S.
       
    Reinsurance     Reinsurance     Insurance     Insurance     Total     Reinsurance     Reinsurance     Insurance     Insurance     Total  
 
Before Accident Year Adjustment
                                                                               
Loss ratio
    53.1%       78.3%       65.8%       90.6%       65.8%       21.7%       67.3%       61.1%       88.3%       52.0%  
  Policy acquisition expense ratio     18.8%       16.3%       16.1%       20.7%       17.3%       20.0%       19.0%       16.9%       16.8%       18.3%  
  Operating and administrative expense ratio     13.0%       10.2%       13.0%       31.8%       13.6%       13.9%       9.8%       13.5%       32.8%       13.8%  
Expense ratio
    31.8%       26.5%       29.1%       52.5%       30.9%       33.9%       28.8%       30.4%       49.6%       32.1%  
                                                                                 
Combined ratio
    84.9%       104.8%       94.9%       143.1%       96.7%       55.6%       96.1%       91.5%       137.9%       84.1%  
                                                                                 
Accident Year Adjustment
                                                                               
Loss ratio
    6.6%       2.7%       3.3%       (22.6% )     2.5%       10.6%       6.6%       4.9%       (18.6% )     5.7%  
  Policy acquisition expense ratio     (1.1% )     0.3%       (0.8% )           (0.6% )     (0.8% )           0.1%       0.1%       (0.1% )
  Operating and administrative expense ratio           0.2%       0.5%             0.3%       0.3%       0.1%       0.5%       (0.4% )     0.3%  
Expense ratio
    (1.1% )     0.5%       (0.3% )           (0.3% )     (0.5% )     0.1%       0.6%       (0.3% )     0.2%  
                                                                                 
Combined ratio
    5.5%       3.2%       3.0%       (22.6% )     2.2%       10.1%       6.7%       5.5%       (18.9% )     5.9%  
                                                                                 
Accident Year Ratios
                                                                               
Current accident year loss ratio
    59.7%       81.0%       69.1%       68.0%       68.3%       32.3%       73.9%       66.0%       69.7%       57.7%  
  Policy acquisition expense ratio     17.7%       16.6%       15.3%       20.7%       16.7%       19.2%       19.0%       17.0%       16.9%       18.2%  
  Operating and administrative expense ratio     13.0%       10.4%       13.5%       31.8%       13.9%       14.2%       9.9%       14.0%       32.4%       14.1%  
Expense ratio
    30.7%       27.0%       28.8%       52.5%       30.6%       33.4%       28.9%       31.0%       49.3%       32.3%  
                                                                                 
Combined ratio
    90.4%       108.0%       97.9%       120.5%       98.9%       65.7%       102.8%       97.0%       119.0%       90.0%  
                                                                                 


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Table of Contents

(ASPEN LOGO)
 
 
Aspen Insurance Holdings Limited
 
Reserves by Previous Operating Segment
 
                                                 
    As At December 31, 2010     As At December 31, 2009  
          Reinsurance
                Reinsurance
       
(in US$ millions)   Gross     Recoverables     Net     Gross     Recoverables     Net  
 
Property Reinsurance
    $515.6       $(21.2 )     $494.4       $390.6       $(35.4 )     $355.2  
Casualty Reinsurance
    1,604.8       (3.2 )     1,601.6       1,518.9       (6.4 )     1,512.5  
International Insurance
    1,421.9       (200.0 )     1,221.9       1,220.1       (227.7 )     992.4  
U.S. Insurance
    278.2       (55.5 )     222.7       201.5       (52.0 )     149.5  
                                                 
Total losses and loss expense reserves
    $3,820.5       $(279.9 )     $3,540.6       $3,331.1       $(321.5 )     $3,009.6  
                                                 


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Table of Contents

(ASPEN LOGO)
 
 
Aspen Insurance Holdings Limited
 
Prior Year Reserve Releases
 
                                                 
    Three Months Ended
    Three Months Ended
 
    December 31, 2010     December 31, 2009  
          Reinsurance
                Reinsurance
       
(in US$ millions)   Gross     Recoverables     Net     Gross     Recoverables     Net  
 
Property Reinsurance
    $24.4       $0.5       $24.9       $12.8       $(0.9 )     $11.9  
Casualty Reinsurance
    (1.6 )     1.0       (0.6 )     8.9             8.9  
International Insurance
    2.8       7.8       10.6       (1.0 )     5.9       4.9  
U.S. Insurance
    (39.9 )     17.6       (22.3 )     (25.7 )     13.4       (12.3 )
                                                 
(Strengthening)/release in reserves for prior
years during the period
    $(14.3 )     $26.9       $12.6       $(5.0 )     $18.4       $13.4  
                                                 
 
                                                 
    Twelve Months Ended
    Twelve Months Ended
 
    December 31, 2010     December 31, 2009  
          Reinsurance
                Reinsurance
       
    Gross     Recoverables     Net     Gross     Recoverables     Net  
 
Property Reinsurance
    $37.1       $1.3       $38.4       $54.8       $3.7       $58.5  
Casualty Reinsurance
    6.4       (2.3 )     4.1       27.5             27.5  
International Insurance
    (0.5 )     7.6       7.1       (4.5 )     22.2       17.7  
U.S. Insurance
    (50.2 )     22.0       (28.2 )     (49.4 )     30.1       (19.3 )
                                                 
(Strengthening)/release in reserves for prior
years during the period
    $(7.2 )     $28.6       $21.4       $28.4       $56.0       $84.4  
                                                 


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