7Baggers

Assured Guaranty Ltd
(NYSE:AGO) 

AGO stock logo

Assured Guaranty Ltd., through its subsidiaries, provides credit protection products to public finance, infrastructure, and structured finance markets in the United States and internationally. The company operates in two segments, Insurance and Asset Management. It offers financial guaranty insuranc...

Founded: 2003
Full Time Employees: 441
Sector: Financial Services
Industry: Insurance-Specialty

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At a glance:
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Quarterly
Annual
    Unit: USD2026-03-31 2025-12-31 2025-09-30 2025-06-30 2025-03-31 2024-12-31 2024-09-30 2024-06-30 2024-03-31 2023-12-31 2023-09-30 2023-06-30 2023-03-31 2022-12-31 2022-09-30 2022-06-30 2022-03-31 2021-12-31 2021-09-30 2021-06-30 2021-03-31 2020-12-31 2020-09-30 2020-06-30 2020-03-31 2019-09-30 2018-03-31 2009-03-31 2008-03-31 2007-03-31 2006-12-31 
                                   
      revenues
                                   
      net earned premiums
    82,000,000 106,000,000 94,000,000 89,000,000 91,000,000 103,000,000 97,000,000 84,000,000 119,000,000 83,000,000 95,000,000 85,000,000 81,000,000 109,000,000 89,000,000 82,000,000 214,000,000 107,000,000 102,000,000 102,000,000 103,000,000 154,000,000 107,000,000 121,000,000 103,000,000 123,000,000 145,000,000 148,446,000 46,833,000 53,870,000  
      net investment income
    92,000,000 89,000,000 94,000,000 89,000,000 87,000,000 93,000,000 82,000,000 81,000,000 84,000,000 95,000,000 100,000,000 89,000,000 81,000,000 78,000,000 67,000,000 62,000,000 62,000,000 65,000,000 66,000,000 68,000,000 70,000,000 68,000,000 71,000,000 78,000,000 80,000,000 88,000,000 101,000,000 43,601,000 36,574,000 31,482,000  
      net realized investment gains
    -15,000,000 -8,000,000 -10,000,000 -6,000,000 -16,000,000 7,000,000  -6,000,000 8,000,000 6,000,000 -9,000,000 -9,000,000 -2,000,000 -17,000,000 -14,000,000 -28,000,000 3,000,000 11,000,000 3,000,000 4,000,000 -3,000,000 6,000,000 13,000,000 4,000,000 -5,000,000 16,000,000 -5,000,000  627,000   
      fair value gains on derivatives
    2,000,000                               
      fair value gains on committed capital securities
    6,000,000 11,000,000 8,000,000 -1,000,000 2,000,000 2,000,000 -3,000,000 1,000,000 -10,000,000  -20,000,000 1,000,000 -16,000,000 12,000,000 1,000,000 10,000,000 1,000,000  -3,000,000 -6,000,000 -19,000,000   -25,000,000 48,000,000       
      gains on financial guaranty variable interest entities
    -5,000,000                               
      fair value gains on consolidated investment vehicles
    9,000,000 39,000,000 17,000,000 4,000,000 19,000,000 15,000,000 21,000,000 11,000,000 22,000,000 28,000,000 -4,000,000 6,000,000 58,000,000 -8,000,000 8,000,000 3,000,000 14,000,000 74,000,000 16,000,000 21,000,000 16,000,000 4,000,000 18,000,000 31,000,000 -12,000,000       
      foreign exchange gains on remeasurement
    -19,000,000 3,000,000 -23,000,000 79,000,000 37,000,000 -70,000,000 55,000,000  -12,000,000 44,000,000 -39,000,000 28,000,000 20,000,000 69,000,000 -80,000,000 -71,000,000 -30,000,000 -1,000,000 -27,000,000 5,000,000  59,000,000 40,000,000 2,000,000 -62,000,000       
      fair value gains on trading securities
    6,000,000 2,000,000 8,000,000 2,000,000 1,000,000  9,000,000 17,000,000 26,000,000 32,000,000 4,000,000 40,000,000 -2,000,000 -4,000,000 -8,000,000 -18,000,000                
      asset management revenues
    94,000,000                               
      other income
    9,000,000 24,000,000 11,000,000 22,000,000 19,000,000 1,000,000 12,000,000 9,000,000 1,000,000 23,000,000 6,000,000 5,000,000 27,000,000 3,000,000 -1,000,000 10,000,000 -1,000,000 6,000,000 9,000,000 14,000,000   5,000,000 2,000,000 7,000,000 -9,000,000 13,000,000 20,568,000 8,536,000 601,000  
      total revenues
    261,000,000 277,000,000 207,000,000 281,000,000 345,000,000 156,000,000 269,000,000 202,000,000 245,000,000 327,000,000 403,000,000 360,000,000 283,000,000 292,000,000 41,000,000 90,000,000 300,000,000 263,000,000 212,000,000 196,000,000 177,000,000 379,000,000 268,000,000 372,000,000 96,000,000 206,000,000 293,000,000 243,066,000  75,359,000  
      yoy
    -24.35% 77.56% -23.05% 39.11% 40.82% -52.29% -33.25% -43.89% -13.43% 11.99% 882.93% 300.00% -5.67% 11.03% -80.66% -54.08% 69.49% -30.61% -20.90% -47.31% 84.38% 83.98% -8.53% 53.04%  173.36%      
      qoq
    -5.78% 33.82% -26.33% -18.55% 121.15% -42.01% 33.17% -17.55% -25.08% -18.86% 11.94% 27.21% -3.08% 612.20% -54.44% -70.00% 14.07% 24.06% 8.16% 10.73% -53.30% 41.42% -27.96% 287.50% -53.40% -29.69% 20.54%     
      expenses
                                   
      loss and loss adjustment expenses
    17,000,000 18,000,000 -30,000,000 28,000,000 40,000,000 28,000,000 -51,000,000 -2,000,000 -1,000,000 3,000,000 100,000,000 55,000,000 4,000,000 45,000,000 -75,000,000 -11,000,000 57,000,000 -166,000,000 -68,000,000 -16,000,000 30,000,000 73,000,000 73,000,000 37,000,000 20,000,000 30,000,000 -18,000,000 79,754,000 55,138,000   
      benefit expense for annuity reinsurance contracts
    7,000,000                               
      interest expense
    22,000,000 22,000,000 22,000,000 23,000,000 22,000,000 23,000,000 22,000,000 23,000,000 23,000,000 23,000,000 24,000,000 22,000,000 21,000,000 21,000,000 20,000,000 20,000,000 20,000,000 20,000,000 23,000,000 23,000,000 21,000,000 21,000,000 21,000,000 21,000,000 22,000,000 22,000,000 24,000,000 5,821,000 5,821,000 6,033,000  
      amortization of deferred acquisition costs
    5,000,000 6,000,000 6,000,000 5,000,000 5,000,000 6,000,000 5,000,000 3,000,000 6,000,000 3,000,000 4,000,000 3,000,000 3,000,000 3,000,000 4,000,000 3,000,000 4,000,000 4,000,000 3,000,000 4,000,000 3,000,000 5,000,000 4,000,000 4,000,000 3,000,000 3,000,000 5,000,000     
      employee compensation and benefit expenses
    63,000,000 49,000,000 50,000,000 50,000,000 60,000,000 49,000,000 47,000,000 48,000,000 58,000,000 52,000,000 47,000,000 70,000,000 82,000,000 69,000,000 57,000,000 59,000,000 73,000,000 57,000,000 59,000,000 54,000,000 60,000,000 61,000,000 57,000,000 46,000,000 64,000,000       
      asset management expenses
    68,000,000                               
      other operating expenses
    45,000,000 43,000,000 44,000,000 45,000,000 42,000,000 35,000,000 44,000,000 41,000,000 39,000,000 47,000,000 44,000,000 71,000,000 55,000,000 47,000,000 37,000,000 41,000,000 42,000,000 44,000,000 38,000,000 40,000,000 57,000,000 69,000,000 41,000,000 42,000,000 45,000,000 65,000,000 65,000,000 32,318,000 28,638,000 20,703,000  
      total expenses
    227,000,000 138,000,000 92,000,000 151,000,000 169,000,000 141,000,000 67,000,000 113,000,000 125,000,000 128,000,000 219,000,000 221,000,000 165,000,000 185,000,000 43,000,000 112,000,000 196,000,000 -41,000,000 230,000,000 105,000,000 171,000,000 229,000,000 196,000,000 150,000,000 154,000,000 120,000,000 76,000,000 142,969,000 103,395,000 35,032,000  
      income before income taxes and equity in earnings of investees
    34,000,000 139,000,000 115,000,000 130,000,000 176,000,000 15,000,000 202,000,000 89,000,000 120,000,000 199,000,000 184,000,000  118,000,000 20,000,000 -2,000,000  104,000,000 304,000,000 -18,000,000 91,000,000 6,000,000           
      equity in earnings of investees
    31,000,000 26,000,000 20,000,000 3,000,000 53,000,000 15,000,000 18,000,000 5,000,000 24,000,000 3,000,000 18,000,000  2,000,000 -7,750,000 -20,000,000  -11,000,000 28,000,000 23,000,000 34,000,000 9,000,000           
      income before income taxes
    65,000,000 165,000,000 135,000,000 133,000,000 229,000,000 30,000,000 220,000,000 94,000,000 144,000,000 202,000,000 202,000,000 144,000,000 120,000,000 99,000,000 -22,000,000 -22,000,000 93,000,000 332,000,000 5,000,000 125,000,000 15,000,000 174,000,000 79,000,000 222,000,000 -62,000,000 86,000,000 217,000,000     
      less: provision for income taxes
    -20,000,000 23,000,000 21,000,000 27,000,000 44,000,000 22,000,000 44,000,000 13,000,000 31,000,000 21,000,000 43,000,000  23,000,000 -1,500,000 -27,000,000  18,000,000               
      net income
    85,000,000 138,000,000 114,000,000 106,000,000 185,000,000 22,000,000 176,000,000 81,000,000 113,000,000 379,000,000 159,000,000 126,000,000 97,000,000 82,000,000 5,000,000 -25,000,000 75,000,000 282,000,000 20,000,000 102,000,000 15,000,000 149,000,000 89,000,000 188,000,000 -58,000,000 69,000,000 197,000,000 85,489,000  38,951,000  
      yoy
    -54.05% 527.27% -35.23% 30.86% 63.72% -94.20% 10.69% -35.71% 16.49% 362.20% 3080.00% -604.00% 29.33% -70.92% -75.00% -124.51% 400.00% 89.26% -77.53% -45.74% -125.86% 115.94% -54.82% 119.91%  77.15%      
      qoq
    -38.41% 21.05% 7.55% -42.70% 740.91% -87.50% 117.28% -28.32% -70.18% 138.36% 26.19% 29.90% 18.29% 1540.00% -120.00% -133.33% -73.40% 1310.00% -80.39% 580.00% -89.93% 67.42% -52.66% -424.14% -184.06% -64.97% 130.44%     
      net income margin %
    32.57% 49.82% 55.07% 37.72% 53.62% 14.10% 65.43% 40.10% 46.12% 115.90% 39.45% 35.00% 34.28% 28.08% 12.20% -27.78% 25.00% 107.22% 9.43% 52.04% 8.47% 39.31% 33.21% 50.54% -60.42% 33.50% 67.24% 35.17% NaN% 51.69%  
      less: noncontrolling interest
    -3,000,000                               
      net income attributable to assured guaranty ltd.
    88,000,000 119,000,000 105,000,000 103,000,000 176,000,000 18,000,000 171,000,000 78,000,000 109,000,000 376,000,000 157,000,000 125,000,000 81,000,000 94,000,000 11,000,000 -47,000,000 66,000,000 263,000,000 17,000,000 98,000,000 11,000,000 148,000,000 86,000,000 183,000,000 -55,000,000       
      earnings per share:
                                   
      basic
    1.94 2.57 2.2 2.1 3.49 0.44 3.23 1.43 1.94 6.43 2.65 2.09 1.37 1.48 0.18 -0.74 3.62 0.22 1.31 0.14 1.77 1.03 2.11 -0.59 0.71 1.71 0.94 -2.11 0.58  
      diluted
    1.91 2.53 2.18 2.08 3.44 0.43 3.17 1.41 1.89 6.31 2.6 2.06 1.34 1.46 0.18 -0.74 0.98 3.57 0.22 1.29 0.14 1.76 1.02 2.1 -0.59 0.7 1.68 0.93 -2.11 0.57  
      fair value gains on credit derivatives
     11,000,000 5,000,000 1,000,000 104,000,000 5,000,000 3,000,000 6,000,000 10,000,000 -1,000,000 9,000,000 91,000,000 15,000,000 31,000,000 -48,000,000 9,000,000 -3,000,000 -27,000,000 21,000,000             
      fair value gains on financial guaranty variable interest entities
      3,000,000 2,000,000 1,000,000  -7,000,000 -1,000,000 -3,000,000 10,000,000 6,000,000 -3,000,000 -5,000,000 -5,000,000 11,000,000 10,000,000 6,000,000 5,000,000 5,000,000  5,000,000 -2,000,000  1,000,000 -9,000,000 4,000,000 4,000,000     
      less: noncontrolling interests
     5,250,000 9,000,000 3,000,000 9,000,000 4,000,000 5,000,000 3,000,000 4,000,000 3,000,000 2,000,000 1,000,000 16,000,000 -12,000,000 -6,000,000 22,000,000 9,000,000 19,000,000 3,000,000 4,000,000 4,000,000 1,000,000 3,000,000 5,000,000 -3,000,000       
      asset management fees
               27,000,000 26,000,000 22,000,000 16,000,000 21,000,000 34,000,000 23,000,000 20,000,000 21,000,000 24,000,000 29,000,000 17,000,000 20,000,000 23,000,000       
      gain on sale of asset management subsidiaries
             7,000,000 255,000,000                     
      income before income taxes and equity in earnings (losses) of investees
               139,000,000    -22,000,000                
      equity in earnings (losses) of investees
               5,000,000                    
      less: benefit for income taxes
               18,000,000    3,000,000  2,000,000 -15,000,000 23,000,000            
      loss on extinguishment of debt
                      175,000,000             
      commutation gain
                                   
      net change in fair value of credit derivatives
                       -33,000,000 -19,000,000 61,000,000 -3,000,000 100,000,000 -77,000,000 5,000,000 34,000,000 47,561,000    
      provision for income taxes
                                   
      commutation gains
                           38,000,000   1,000,000     
      income before income taxes and equity in net earnings of investees
                         59,000,000 72,000,000 222,000,000 -58,000,000 86,000,000      
      equity in net earnings of investees
                         750,000 7,000,000  -4,000,000       
      benefit for income taxes
                         5,000,000 -10,000,000 34,000,000 -4,000,000 17,000,000      
      foreign exchange gain on remeasurement
                             -21,000,000      
      fair value gains on equity investments
                                   
      other-than-temporary impairment losses
                              -11,000,000     
      less: portion of other-than-temporary impairment loss recognized in other comprehensive income
                              -3,000,000     
      net impairment loss
                              -8,000,000     
      other net realized investment gains
                              3,000,000     
      net change in fair value of credit derivatives:
                                   
      realized gains and other settlements
                              2,000,000     
      net unrealized gains
                              32,000,000     
      bargain purchase gain and settlement of pre-existing relationships
                                   
      current
                              -37,000,000 11,575,000 10,113,000 3,671,000  
      deferred
                              57,000,000 3,033,000    
      total benefit for income taxes
                              20,000,000 14,608,000    
      dividends per share
                              0.16 0.045 0.045 0.04  
      change in fair value of credit derivatives
                                   
      realized gains and other settlements on credit derivatives
                               20,579,000 27,617,000   
      unrealized gains on credit derivatives
                               26,982,000    
      profit commission expense
                               255,000 1,180,000 1,613,000  
      acquisition costs
                               23,421,000 11,883,000 10,811,000  
      income before benefit for income taxes
                               100,097,000    
      other comprehensive loss, net of taxes
                                   
      unrealized holding losses on fixed maturity securities arising during the period
                                   
      reclassification adjustment for realized losses (gains) included in net income
                               17,075,000    
      change in net unrealized gains on fixed maturity securities
                               7,373,000    
      change in cumulative translation adjustment
                                357,000 29,000  
      change in cash flow hedge
                                   
      comprehensive income
                               84,370,000 -174,248,000 38,411,000  
      gross written premiums
                                175,802,000 72,540,000  
      ceded premiums
                                   
      net written premiums
                                169,692,000 68,382,000  
      increase in net unearned premium reserves
                                   
      unrealized losses on credit derivatives
                                   
      income before (benefit) benefit from income taxes
                                   
      reclassification adjustment for realized (gains) losses included in net income
                                   
      net realized investment losses
                                   
      unrealized gains on derivative financial instruments
                                   
      income before benefit from income taxes
                                 40,327,000  
      total benefit from income taxes
                                 1,376,000  
      reclassification adjustment for realized losses included in net income
                                 221,000  
    Balance Sheets:
    Quarterly
    Annual
      Unit: USD2026-03-31 2025-12-31 2025-09-30 2025-06-30 2025-03-31 2024-12-31 2024-09-30 2024-06-30 2024-03-31 2023-12-31 2023-09-30 2023-06-30 2023-03-31 2022-12-31 2022-09-30 2022-06-30 2022-03-31 2021-12-31 2021-09-30 2021-06-30 2021-03-31 2020-12-31 2020-09-30 2020-06-30 2020-03-31 2019-09-30 2018-03-31 2012-03-31 2011-09-30 2009-06-30 2009-03-31 2008-09-30 2008-06-30 2008-03-31 2007-06-30 2007-03-31 2006-12-31 2006-09-30 2006-06-30 2005-12-31 2005-09-30 2005-06-30 2005-03-31 
                                                 
        assets
                                                 
        investments:
                                                 
        fixed-maturity securities, available-for-sale, at fair value, net of allowance for credit loss of 63 and 54
      6,875,000,000                                           
        fixed-maturity securities, trading, at fair value
      127,000,000 124,000,000 136,000,000 137,000,000 137,000,000 147,000,000 163,000,000 221,000,000 272,000,000 318,000,000 350,000,000 340,000,000 300,000,000 303,000,000 393,000,000 87,000,000 174,000,000                           
        short-term investments, at fair value
      768,000,000 903,000,000 1,332,000,000 939,000,000 1,158,000,000 1,221,000,000 1,487,000,000 1,717,000,000 1,649,000,000 1,661,000,000 1,426,000,000 1,650,000,000 1,273,000,000 810,000,000 1,177,000,000 863,000,000 585,000,000 1,225,000,000 694,000,000   851,000,000    1,142,000,000 751,000,000  873,268,000               
        other invested assets
      1,136,000,000 1,091,000,000 1,012,000,000 995,000,000 960,000,000 926,000,000 912,000,000 882,000,000 875,000,000 829,000,000 765,000,000 146,000,000 140,000,000 133,000,000 130,000,000 150,000,000 152,000,000 181,000,000 260,000,000 237,000,000 211,000,000 214,000,000 113,000,000 122,000,000 121,000,000 57,000,000 103,000,000 203,900,000 297,975,000               
        total investments
      8,906,000,000 8,487,000,000 8,758,000,000 8,569,000,000 8,670,000,000 8,663,000,000 8,846,000,000 8,826,000,000 8,887,000,000 9,115,000,000 8,808,000,000 8,624,000,000 8,582,000,000 8,365,000,000 8,480,000,000 8,496,000,000 9,067,000,000 9,608,000,000 9,617,000,000           4,584,227,000 3,793,012,000 3,530,677,000 3,705,443,000 3,308,663,000 2,485,765,000 2,488,370,000 2,465,135,000 2,379,441,000 2,239,887,000 2,249,823 2,255,333,000 2,197,948,000 2,146,927,000 
        cash
      312,000,000 388,000,000 157,000,000 301,000,000 177,000,000 121,000,000 147,000,000 92,000,000 115,000,000 97,000,000 108,000,000 114,000,000 118,000,000 107,000,000 131,000,000 138,000,000 119,000,000 120,000,000 101,000,000 144,000,000 95,000,000 162,000,000 223,000,000 293,000,000 139,000,000 229,000,000 114,000,000 182,003,000 173,260,000               
        premiums receivable, net of commissions payable, net of allowance for credit losses of 3 and 3
      1,543,000,000                                           
        funds withheld, at fair value
      296,000,000                                           
        deferred acquisition costs
      197,000,000 192,000,000 190,000,000 185,000,000 181,000,000 176,000,000 172,000,000 169,000,000 164,000,000 161,000,000 158,000,000 155,000,000 151,000,000 147,000,000 142,000,000 139,000,000 135,000,000 131,000,000 129,000,000 126,000,000 124,000,000 119,000,000 118,000,000 116,000,000 113,000,000 107,000,000 100,000,000 129,015,000 230,983,000 374,087,000 382,525,000 292,121,000 284,580,000 272,674,000 224,813,000 220,413,000 217,029,000 210,184,000 205,307,000 193,442 190,034,000 188,194,000 192,199,000 
        salvage and subrogation recoverable
      437,000,000 449,000,000 453,000,000 382,000,000 389,000,000 396,000,000 412,000,000 293,000,000 295,000,000 298,000,000 282,000,000 266,000,000 258,000,000 257,000,000 385,000,000 502,000,000 529,000,000 801,000,000 1,148,000,000 986,000,000 977,000,000 991,000,000 961,000,000 795,000,000 820,000,000 725,000,000 430,000,000 367,343,000 360,161,000               
        financial guaranty variable interest entities’ assets
      201,000,000 212,000,000  211,000,000  147,000,000 156,000,000 160,000,000 167,000,000 328,000,000 327,000,000 414,000,000 415,000,000 416,000,000                              
        assets of consolidated investment vehicles
       175,000,000 136,000,000 121,000,000 119,000,000 101,000,000 359,000,000 378,000,000 377,000,000 366,000,000 330,000,000 5,055,000,000 5,118,000,000 5,493,000,000 5,336,000,000 5,456,000,000 5,700,000,000 5,271,000,000 4,371,000,000 3,547,000,000 2,956,000,000 1,913,000,000 1,539,000,000 1,669,000,000 645,000,000                   
        other assets
      743,000,000 701,000,000 679,000,000 695,000,000 689,000,000 746,000,000 686,000,000 698,000,000 713,000,000 700,000,000 549,000,000 580,000,000 557,000,000 597,000,000 606,000,000 561,000,000 481,000,000 470,000,000 421,000,000 439,000,000 443,000,000 440,000,000 486,000,000 513,000,000 593,000,000 517,000,000 507,000,000 337,953,000 243,070,000 39,682,000 35,303,000 21,989,000 74,346,000 66,756,000 29,652,000 27,604,000 26,229,000 21,961,000 17,428,000 17,694 17,972,000 21,001,000 17,965,000 
        total assets
      12,635,000,000 12,176,000,000 12,101,000,000 12,095,000,000 11,938,000,000 11,901,000,000 12,291,000,000 12,088,000,000 12,168,000,000 12,539,000,000 11,944,000,000 16,852,000,000 16,778,000,000 16,843,000,000 16,660,000,000 16,960,000,000 17,845,000,000 18,208,000,000 17,614,000,000 17,226,000,000 16,018,000,000 15,334,000,000 14,695,000,000 14,780,000,000 13,745,000,000 13,367,000,000 14,019,000,000 18,504,813,000 18,404,995,000 6,495,739,000 5,588,328,000 4,442,684,000 4,527,588,000 4,062,032,000 2,972,491,000 2,953,059,000 2,935,340,000 2,844,849,000 2,735,438,000 2,676,471 2,766,742,000 2,771,564,000 2,709,678,000 
        liabilities
                                                 
        unearned premium reserve
      3,613,000,000 3,625,000,000 3,663,000,000 3,675,000,000 3,671,000,000 3,719,000,000 3,631,000,000 3,662,000,000 3,612,000,000 3,658,000,000 3,600,000,000 3,648,000,000 3,631,000,000 3,620,000,000 3,596,000,000 3,585,000,000 3,596,000,000 3,716,000,000 3,716,000,000 3,704,000,000 3,718,000,000 3,735,000,000 3,762,000,000 3,742,000,000 3,706,000,000 3,334,000,000 3,395,000,000 5,839,223,000 6,111,822,000               
        loss and loss adjustment expense reserve
      310,000,000 309,000,000 308,000,000 315,000,000 294,000,000 268,000,000 253,000,000 294,000,000 307,000,000 376,000,000 361,000,000 349,000,000 291,000,000 296,000,000 882,000,000 716,000,000 718,000,000 869,000,000 981,000,000 1,064,000,000 1,058,000,000 1,088,000,000 982,000,000 1,076,000,000 1,050,000,000 1,007,000,000 1,299,000,000 954,475,000 670,743,000               
        future policy benefits for annuity reinsurance contracts
      475,000,000                                           
        policyholder account balances for annuity reinsurance contracts
      263,000,000                                           
        long-term debt
      1,705,000,000 1,704,000,000 1,702,000,000 1,701,000,000 1,700,000,000 1,699,000,000 1,698,000,000 1,696,000,000 1,695,000,000 1,694,000,000 1,693,000,000 1,677,000,000 1,676,000,000 1,675,000,000 1,675,000,000 1,674,000,000 1,673,000,000 1,673,000,000 1,671,000,000 1,720,000,000 1,225,000,000 1,224,000,000 1,223,000,000 1,222,000,000 1,221,000,000 1,234,000,000 1,281,000,000 1,034,667,000 1,041,653,000 516,974,000        197,367,000 197,359,000 197,344 197,337,000 197,330,000 197,323,000 
        financial guaranty variable interest entities’ liabilities
      194,000,000 198,000,000  202,000,000                                        
        other liabilities
      511,000,000 551,000,000 532,000,000 473,000,000 453,000,000 498,000,000 496,000,000 410,000,000 430,000,000 435,000,000 393,000,000 456,000,000 402,000,000 457,000,000 440,000,000 419,000,000 496,000,000 569,000,000 526,000,000 579,000,000 509,000,000 556,000,000 502,000,000 480,000,000 405,000,000 433,000,000 315,000,000 422,694,000 436,602,000 169,116,000 66,910,000 71,558,000 136,672,000 80,302,000 36,507,000 38,009,000 39,016,000 33,923,000 24,936,000 56,714 56,219,000 50,545,000 42,418,000 
        total liabilities
      7,071,000,000 6,387,000,000 6,364,000,000 6,366,000,000 6,281,000,000 6,348,000,000 6,509,000,000 6,493,000,000 6,486,000,000 6,774,000,000 6,643,000,000 11,397,000,000 11,363,000,000 11,551,000,000 11,486,000,000 11,392,000,000 11,829,000,000 11,708,000,000 11,218,000,000 10,653,000,000 9,525,000,000 8,629,000,000 8,078,000,000 8,271,000,000 7,472,000,000 6,715,000,000 7,235,000,000 14,322,295,000 13,638,280,000 4,140,820,000 3,562,735,000 2,352,736,000 2,285,193,000 2,569,362,000 1,277,708,000 1,258,763,000 1,284,579,000 1,087,958,000 1,052,660,000 1,014,958 1,133,098,000 1,152,056,000 1,172,008,000 
        commitments and contingencies
                                                 
        shareholders’ equity
                                                 
        common shares
           1,000,000 1,000,000 1,000,000 1,000,000 1,000,000 1,000,000 1,000,000 1,000,000 1,000,000 1,000,000 1,000,000 1,000,000 1,000,000 1,000,000 1,000,000 1,000,000 1,000,000                      
        retained earnings
      5,821,000,000 5,830,000,000 5,836,000,000 5,859,000,000 5,903,000,000 5,878,000,000 5,957,000,000 5,929,000,000 6,014,000,000 6,070,000,000 5,815,000,000 5,732,000,000 5,638,000,000 5,577,000,000 5,579,000,000 5,672,000,000 5,878,000,000 5,990,000,000 5,924,000,000 6,056,000,000 6,055,000,000 6,143,000,000 6,143,000,000 6,109,000,000 6,100,000,000 6,331,000,000 6,102,000,000 1,208,380,000 1,866,664,000 622,369,000 738,831,000 885,978,000 953,460,000 412,384,000 965,803,000 935,726,000 896,947,000 857,121,000 821,826,000 747,691 711,770,000 674,832,000 610,329,000 
        accumulated other comprehensive income, net of tax of
      -280,000,000 -168,000,000 -179,000,000 -227,000,000 -314,000,000 -385,000,000 -231,000,000 -392,000,000 -387,000,000 -359,000,000 -565,000,000 -458,000,000 -420,000,000                               
        deferred equity compensation
      1,000,000 1,000,000 1,000,000 1,000,000 1,000,000 1,000,000 1,000,000 1,000,000 1,000,000 1,000,000 1,000,000 1,000,000 1,000,000 1,000,000 1,000,000 1,000,000 1,000,000 1,000,000 1,000,000 1,000,000 1,000,000 1,000,000 1,000,000 1,000,000 1,000,000 1,000,000 1,000,000 4,400,000 3,500,000               
        total shareholders’ equity attributable to assured guaranty ltd.
      5,542,000,000 5,663,000,000 5,658,000,000 5,633,000,000 5,590,000,000 5,495,000,000 5,728,000,000 5,539,000,000 5,629,000,000 5,713,000,000 5,252,000,000 5,276,000,000 5,220,000,000 5,064,000,000 4,929,000,000 5,304,000,000 5,802,000,000 6,292,000,000 6,300,000,000 6,503,000,000 6,430,000,000 6,643,000,000 6,549,000,000 6,444,000,000 6,240,000,000                   
        non-redeemable noncontrolling interest
      22,000,000 126,000,000                                          
        total shareholders’ equity
      5,564,000,000 5,789,000,000 5,737,000,000 5,729,000,000 5,657,000,000 5,553,000,000 5,782,000,000 5,595,000,000 5,682,000,000 5,765,000,000 5,301,000,000 5,455,000,000 5,415,000,000 5,292,000,000 5,153,000,000 5,547,000,000 5,995,000,000 6,478,000,000 6,375,000,000 6,552,000,000 6,472,000,000 6,684,000,000 6,596,000,000 6,489,000,000 6,265,000,000 6,652,000,000 6,784,000,000 4,182,518,000 4,766,715,000 2,354,919,000 2,025,593,000 2,089,948,000 2,242,395,000 1,492,670,000 1,694,783,000 1,694,296,000 1,650,761,000 1,756,891,000 1,682,778,000 1,661,513 1,633,644,000 1,619,508,000 1,537,670,000 
        total liabilities and shareholders’ equity
      12,635,000,000 12,176,000,000 12,101,000,000 12,095,000,000 11,938,000,000 11,901,000,000 12,291,000,000 12,088,000,000 12,168,000,000 12,539,000,000 11,944,000,000 16,852,000,000 16,778,000,000             13,367,000,000 14,019,000,000 18,504,813,000 18,404,995,000 6,495,739,000 5,588,328,000 4,442,684,000 4,527,588,000 4,062,032,000 2,972,491,000 2,953,059,000 2,935,340,000 2,844,849,000 2,735,438,000 2,676,471 2,766,742,000 2,771,564,000 2,709,678,000 
        fixed-maturity securities, available-for-sale, at fair value, net of allowance for credit loss of 54 and 60
       6,369,000,000 6,278,000,000                                         
        premiums receivable, net of commissions payable, net of allowance for credit losses of 3 and –
       1,572,000,000                                          
        premiums receivable, net of commissions payable
        1,583,000,000 1,631,000,000 1,568,000,000 1,551,000,000 1,513,000,000 1,472,000,000 1,450,000,000 1,468,000,000 1,376,000,000 1,417,000,000 1,346,000,000 1,298,000,000 1,178,000,000 1,235,000,000 1,335,000,000 1,372,000,000 1,378,000,000 1,373,000,000 1,359,000,000 1,372,000,000 1,321,000,000 1,294,000,000 1,233,000,000 844,000,000 944,000,000                 
        financial guaranty variable interest entities’ assets, at fair value
        145,000,000  145,000,000          236,000,000 264,000,000 307,000,000 260,000,000 271,000,000 287,000,000 281,000,000 296,000,000 314,000,000 318,000,000 368,000,000 469,000,000 651,000,000 2,827,652,000 3,005,380,000               
        financial guaranty variable interest entities’ liabilities, at fair value
        159,000,000  163,000,000 164,000,000 392,000,000 393,000,000 399,000,000 554,000,000 542,000,000 699,000,000 704,000,000 715,000,000 251,000,000 282,000,000 335,000,000 289,000,000                          
        nonredeemable noncontrolling interests
        79,000,000 96,000,000 67,000,000 58,000,000 54,000,000 56,000,000 53,000,000 52,000,000 49,000,000 179,000,000 195,000,000 228,000,000 224,000,000 243,000,000 193,000,000 186,000,000 75,000,000 49,000,000 42,000,000 41,000,000 47,000,000 45,000,000 25,000,000                   
        fixed-maturity securities, available-for-sale, at fair value, net of allowance for credit loss of 47 and 60
         6,498,000,000                                        
        fixed-maturity securities, available-for-sale, at fair value, net of allowance for credit loss of 45 and 60
          6,415,000,000                                       
        fixed-maturity securities, available-for-sale, at fair value, net of allowance for credit loss of 60 and 77
           6,369,000,000                                      
        fixed-maturity securities, available-for-sale, at fair value, net of allowance for credit loss of 66 and 77
            6,284,000,000                                     
        credit derivative liabilities, at fair value
            39,000,000 38,000,000 43,000,000 53,000,000 50,000,000 58,000,000 150,000,000 163,000,000 195,000,000 148,000,000 157,000,000 156,000,000 137,000,000 157,000,000 124,000,000 103,000,000 162,000,000 163,000,000 265,000,000                   
        fixed-maturity securities, available-for-sale, at fair value, net of allowance for credit loss of 69 and 77
             6,006,000,000                                    
        fixed-maturity securities, available-for-sale, at fair value, net of allowance for credit loss of 67 and 77
              6,091,000,000                                   
        fixed-maturity securities, available-for-sale, at fair value, net of allowance for credit loss of 77 and 65
               6,307,000,000                                  
        goodwill and other intangible assets
               6,000,000 6,000,000 6,000,000 6,000,000 163,000,000 166,000,000 169,000,000 172,000,000 175,000,000 178,000,000 181,000,000 184,000,000 203,000,000 206,000,000 209,000,000 212,000,000                   
        liabilities of consolidated investment vehicles
               4,000,000 4,000,000 4,460,000,000 4,458,000,000 4,625,000,000 4,447,000,000 4,568,000,000 4,854,000,000 4,436,000,000 3,886,000,000 3,109,000,000 2,573,000,000 1,590,000,000 1,092,000,000 1,236,000,000 431,000,000                   
        fixed-maturity securities, available-for-sale, at fair value, net of allowance for credit loss of 86 and 65
                6,267,000,000                                 
        fixed-maturity securities, available-for-sale, at fair value, net of allowance for credit loss of 79 and 65
                 6,488,000,000                                
        assets held for sale
                 221,000,000 227,000,000                               
        liabilities held for sale
                 50,000,000 51,000,000                               
        fixed-maturity securities, available-for-sale, at fair value, net of allowance for credit loss of 69 and 65
                  6,869,000,000                               
        fixed-maturity securities, available-for-sale, at fair value, net of allowance for credit loss of 65 and 42
                   7,119,000,000                              
        redeemable noncontrolling interests
                    21,000,000 21,000,000 21,000,000 22,000,000 21,000,000 21,000,000 21,000,000 21,000,000                      
        accumulated other comprehensive income, net of tax of (84) and 60
                   -515,000,000                              
        total liabilities, redeemable noncontrolling interests and shareholders’ equity
                   16,843,000,000 16,660,000,000 16,960,000,000 17,845,000,000 18,208,000,000 17,614,000,000 17,226,000,000 16,018,000,000 15,334,000,000 14,695,000,000 14,780,000,000 13,745,000,000                   
        fixed-maturity securities, available-for-sale, at fair value, net of allowance for credit loss of 57 and 42
                    6,780,000,000                             
        accumulated other comprehensive income, net of tax of (100) and 60
                    -652,000,000                             
        fixed-maturity securities, available-for-sale, at fair value, net of allowance for credit loss of 51 and 42
                     7,396,000,000                            
        accumulated other comprehensive income, net of tax of (61) and 60
                     -370,000,000                            
        fixed-maturity securities, available-for-sale, at fair value, net of allowance for credit loss of 47 and 42
                      8,156,000,000                           
        accumulated other comprehensive income, net of tax of (12) and 60
                      -78,000,000                           
        fixed-maturity securities, available-for-sale, at fair value, net of allowance for credit loss of 42 and 78
                       8,202,000,000                          
        accumulated other comprehensive income, net of tax of 60 and 89
                       300,000,000                          
        fixed-maturity securities, available-for-sale, at fair value, net of allowance for credit loss of 35 and 78
                        8,663,000,000                         
        financial guaranty variable interest entities’ liabilities with recourse, at fair value
                        281,000,000 296,000,000 301,000,000 316,000,000 336,000,000 332,000,000 312,000,000 388,000,000 598,000,000 2,365,177,000 2,575,548,000               
        financial guaranty variable interest entities’ liabilities without recourse, at fair value
                        20,000,000 24,000,000 17,000,000 17,000,000 19,000,000 20,000,000 82,000,000 105,000,000 110,000,000 1,085,618,000 1,133,025,000               
        accumulated other comprehensive income, net of tax of 74 and 89
                        374,000,000                         
        investment portfolio:
                                                 
        fixed-maturity securities, available-for-sale, at fair value
                         8,819,000,000 8,687,000,000 8,773,000,000 8,556,000,000 8,630,000,000 8,568,000,000 9,277,000,000 10,297,000,000                 
        short-term investments at fair value
                         1,087,000,000 701,000,000  858,000,000 821,000,000 933,000,000                   
        total investment portfolio
                         10,143,000,000 9,599,000,000 9,838,000,000 9,527,000,000 9,573,000,000 9,622,000,000 10,476,000,000 11,151,000,000 11,312,201,000 11,262,484,000               
        accumulated other comprehensive income, net of tax of 84 and 89
                         445,000,000                        
        liabilities and shareholders’ equity
                                                 
        accumulated other comprehensive income, net of tax of 68 and 89
                          373,000,000                       
        accumulated other comprehensive income, net of tax of 89 and 71
                           498,000,000                      
        redeemable noncontrolling interests in consolidated investment vehicles
                            21,000,000 20,000,000 8,000,000                   
        common stock
                            1,000,000 1,000,000 1,000,000 1,000,000 1,000,000 1,825,000 1,822,000 1,344,000 901,000 909,000 909,000 801,000 678,000 677,000 675,000 731,000 732,000 748 749,000 749,000 752,000 
        accumulated other comprehensive income, net of tax of 78 and 71
                            404,000,000                     
        accumulated other comprehensive income, net of tax of 69 and 71
                             333,000,000                    
        accumulated other comprehensive income, net of tax of 34 and 71
                              138,000,000                   
        credit derivative liabilities
                               214,000,000 237,000,000 2,416,268,000 1,495,312,000 957,752,000 706,768,000 465,942,000 342,375,000 885,698,000          
        additional paid-in capital
                                466,000,000 2,569,526,000 2,567,668,000 1,733,997,000 1,284,093,000 1,281,958,000 1,279,182,000 1,027,895,000 719,297,000 716,550,000 711,256,000 856,243,000 855,258,000 881,998 885,431,000 884,389,000 888,951,000 
        accumulated other comprehensive income, net of tax of 77 and 38
                               319,000,000                  
        ceded unearned premium reserve
                                122,000,000 631,398,000 747,457,000               
        accumulated other comprehensive income, net of tax of 51 and 89
                                214,000,000                 
        fixed maturity securities, available-for-sale, at fair value
                                 10,204,938,000 10,091,241,000               
        short term investments, at fair value
                                 903,363,000                
        premiums receivable, net of ceding commissions payable
                                 1,018,672,000 987,115,000               
        reinsurance recoverable on unpaid losses
                                 152,898,000 47,976,000               
        credit derivative assets
                                 463,556,000 467,252,000 146,350,000 149,798,000 179,979,000 176,432,000 4,061,000          
        deferred tax asset
                                 1,031,805,000 676,198,000 209,109,000 117,560,000             
        current income tax receivable
                                 50,317,000 203,659,000               
        reinsurance balances payable
                                 204,173,000 173,575,000 33,754,000 22,673,000 9,890,000 7,603,000 3,998,000 2,846,000 2,743,000 7,199,000 2,069,000 1,409,000 3,724 17,879,000 21,862,000 28,999,000 
        accumulated other comprehensive income, net of tax of 149,205 and 135,344
                                 398,387,000                
        current income tax payable
                                                 
        accumulated other comprehensive income, net of tax benefit of 114,226 and 18,341 in 2011 and 2010
                                  327,061,000               
        fixed maturity securities, at fair value
                                   3,413,257,000 3,176,178,000 3,160,606,000 3,167,972,000 2,815,671,000 2,422,614,000 2,391,702,000 2,331,071,000 2,210,011,000 2,069,156,000 2,133,997 2,192,519,000 2,076,842,000 2,083,399,000 
        short-term investments, at cost which approximates fair value
                                   1,170,970,000 616,834,000 370,071,000 537,471,000 492,992,000 63,151,000 96,668,000 134,064,000 169,430,000 170,731,000 115,826 62,814,000 121,106,000 63,528,000 
        cash and cash equivalents
                                   8,507,000 19,328,000 7,864,000 10,124,000 8,378,000 23,743,000 5,714,000 4,785,000 15,656,000 29,197,000 6,190 7,065,000 4,748,000 21,723,000 
        accrued investment income
                                   31,477,000 34,310,000 36,393,000 31,954,000 28,886,000 25,771,000 23,617,000 24,195,000 22,569,000 22,653,000 22,676 22,681,000 21,448,000 23,130,000 
        prepaid reinsurance premiums
                                   23,121,000 23,655,000 19,934,000 20,651,000 17,533,000 11,010,000 9,513,000 7,500,000 8,956,000 12,442,000 12,478 12,894,000 13,803,000 14,280,000 
        reinsurance recoverable on ceded losses
                                   4,533,000 7,763,000 6,074,000 7,285,000 8,299,000 10,444,000 10,596,000 10,889,000 9,397,000 11,293,000 12,350 107,220,000 112,351,000 118,332,000 
        premiums receivable
                                   752,892,000 748,414,000 51,866,000 25,840,000 23,890,000 38,708,000 36,188,000 41,565,000 33,280,000 42,182,000 33,011 33,369,000 28,507,000 42,732,000 
        goodwill
                                   85,417,000 85,417,000 85,417,000 85,417,000 85,417,000 85,417,000 85,417,000 85,417,000 85,417,000 85,417,000 85,417 85,417,000 85,417,000 85,417,000 
        current income taxes receivable
                                   26,351,000  19,297,000      6,853,000 7,644,000 3,005    
        salvage recoverable
                                   199,828,000 120,515,000 38,035,000 73,064,000           
        committed capital securities, at fair value
                                   10,158,000 70,728,000 32,635,000            
        unearned premium reserves
                                   2,222,717,000 2,153,312,000 1,231,842,000 1,207,385,000 1,014,160,000 693,385,000 661,034,000 644,496,000 619,737,000 601,930,000 537,149 527,925,000 530,151,000 548,735,000 
        reserves for losses and loss adjustment expenses
                                   200,287,000 222,555,000 165,943,000 204,026,000 177,709,000 108,813,000 120,967,000 120,600,000 116,914,000 114,636,000 121,219 201,214,000 206,352,000 218,425,000 
        profit commissions payable
                                   10,220,000 7,751,000 8,984,000 10,749,000 11,369,000 17,886,000 16,754,000 35,994,000 30,979,000 29,616,000 52,993 47,303,000 45,421,000 43,881,000 
        funds held by company under reinsurance contracts
                                   30,000,000 30,962,000 29,490,000 29,206,000 28,953,000 25,029,000 24,661,000 21,412,000 20,338,000 20,339,000 19,186 55,125,000 53,771,000 52,399,000 
        accumulated other comprehensive income
                                    1,768,000  8,844,000 51,590,000 9,005,000 41,343,000 41,883,000 42,796,000 4,962,000 45,832 52,943,000 77,494,000 56,716,000 
        current income taxes payable
                                    4,578,000   10,305,000  6,505,000 7,196,000       
        senior notes
                                    197,452,000 197,434,000 197,425,000 197,416,000 197,391,000 197,383,000 197,375,000       
        series a enhanced junior subordinated debentures
                                    149,774,000 149,760,000 149,752,000 149,745,000 149,723,000 149,716,000 149,708,000       
        deferred income taxes
                                     82,317,000 32,452,000 237,475,000 17,479,000 21,106,000 39,906,000 44,855,000 24,328,000 26,629 17,703,000 18,217,000 39,828,000 
        receivables for securities sold
                                     38,086,000       9,650,000     
        payables for securities purchased
                                     21,893,000       12,140,000     
        liability for tax basis step-up adjustment
                                       9,707,000 10,453,000 10,453,000 14,990,000 15,177,000 19,756,000     
        unrealized gains on derivative financial instruments
                                        37,168,000 45,627,000 52,596,000 51,135,000 52,338,000 40,385 34,757,000 34,471,000 46,973,000 
        unrealized losses on derivative financial instruments
                                        18,196,000 9,432,000 6,687,000 6,599,000 6,211,000     
        unearned stock grant compensation
                                                 
        treasury stock
                                                 
        current income taxes
                                              12,393,000 28,407,000  
        loss recovery receivable
                                               63,676,000  
      Cashflow Statements:
      Quarterly
      Annual
        Unit: USD2026-03-31 2025-12-31 2025-09-30 2025-06-30 2025-03-31 2024-12-31 2024-09-30 2024-06-30 2024-03-31 2023-12-31 2023-09-30 2023-06-30 2023-03-31 2022-12-31 2022-09-30 2022-06-30 2022-03-31 2021-12-31 2021-09-30 2021-06-30 2021-03-31 2020-12-31 2020-09-30 2020-06-30 2020-03-31 2018-03-31 2012-03-31 2011-09-30 2009-06-30 2009-03-31 2008-09-30 2008-06-30 2008-03-31 2007-06-30 2007-03-31 2006-12-31 2006-09-30 2005-12-31 2005-09-30 2005-06-30 2005-03-31 
                                                 
          net cash flows from operating activities
        190,000,000 39,000,000 55,000,000 78,000,000 87,000,000 46,000,000 17,000,000 58,000,000 -74,000,000 203,000,000 -178,000,000 124,000,000 312,000,000 -631,000,000 -54,000,000 -902,000,000 -892,000,000 -145,000,000 -843,000,000 -483,000,000 -466,000,000 -189,000,000 -219,000,000 -281,000,000 -164,000,000 27,000,000  398,218,000 35,763,000 167,017,000 38,559,000 182,317,000 149,045,000 61,539,000 30,003,000 79,991,000 90,221,000  94,608,000 13,385,000 57,181,000 
          cash flows from investing activities:
                                                 
          fixed-maturity securities, available-for-sale:
                                                 
          purchases
        -286,000,000 -355,000,000 -472,000,000 -410,000,000 -344,000,000 -386,000,000 -361,000,000 -286,000,000 -321,000,000 -82,000,000 -168,000,000 -65,000,000 -225,000,000 -92,000,000 -99,000,000 -112,000,000 -68,000,000 -211,000,000 -237,000,000 -392,000,000 -396,000,000 -524,000,000 -229,000,000 -349,000,000 -278,000,000 -411,000,000                
          sales
        93,000,000 91,000,000 106,000,000 211,000,000 216,000,000 74,000,000 87,000,000 129,000,000 359,000,000 95,000,000 73,000,000 239,000,000 455,000,000 157,000,000 207,000,000 296,000,000 57,000,000 206,000,000 -4,000,000 106,000,000 120,000,000 152,000,000 137,000,000 404,000,000 86,000,000 409,000,000 189,346,000 143,412,000 430,744,000 274,260,000 149,351,000 134,111,000 118,392,000 231,106,000 212,870,000 65,441,000 158,656,000 -524,549,434 136,634,000 219,129,000 169,515,000 
          maturities and paydowns
        153,000,000 170,000,000 680,000,000 236,000,000 188,000,000 276,000,000 175,000,000 237,000,000 165,000,000 218,000,000 230,000,000 169,000,000 129,000,000 97,000,000 196,000,000 210,000,000 179,000,000 391,000,000 258,000,000 274,000,000 225,000,000 236,000,000 269,000,000 156,000,000 217,000,000                 
          short-term investments with original maturities of over three months:
                                                 
          net sales (purchases) of short-term investments with original maturities of less than three months
        141,000,000 429,000,000 -394,000,000 224,000,000 67,000,000 265,000,000 230,000,000 -66,000,000 8,000,000 -234,000,000 207,000,000 -385,000,000 -460,000,000 375,000,000 -315,000,000 -277,000,000 656,000,000 -535,000,000 392,000,000 -387,000,000 120,000,000 15,000,000 -72,000,000 112,000,000 375,000,000                 
          sales of fixed-maturity securities, trading
         8,000,000 92,000,000 69,000,000 72,000,000      53,000,000                           
          maturities and paydowns of fixed-maturity securities, trading
        2,000,000 14,000,000 9,000,000 2,000,000 3,000,000 16,000,000                                    
          paydowns of financial guaranty variable interest entities’ assets
        4,000,000  6,000,000 5,000,000 5,000,000  6,000,000 6,000,000 6,000,000  74,000,000 7,000,000 7,000,000  30,000,000 26,000,000 18,000,000                         
          purchases of and contributions to other invested assets
        -27,000,000 -65,000,000 -22,000,000 -60,000,000 -13,000,000 -16,000,000 -32,000,000 -15,000,000 -56,000,000                                 
          sales of and return of capital from other invested assets
        43,000,000 5,000,000 16,000,000 13,000,000 10,000,000 6,000,000 2,000,000 16,000,000 17,000,000                                 
          assured life reinsurance, ltd. acquisition, net of cash acquired
        -145,000,000                                         
          issuance of a loan
        -40,000,000                                         
          other
         -92,000,000 -2,000,000 -3,000,000 -4,000,000 -15,000,000 -2,000,000 -1,000,000 -1,000,000 -89,000,000 -1,000,000 -54,000,000 -1,000,000 -1,000,000 24,000,000 -2,000,000 -1,000,000 -1,000,000 1,000,000 -2,000,000 -9,000,000 -14,000,000 51,607,000 7,875,000          -14,763,762 8,625,000 -88,000 6,242,000 
          net cash flows from investing activities
        -60,000,000 363,000,000 -73,000,000 217,000,000 134,000,000 236,000,000 204,000,000 87,000,000 253,000,000 103,000,000 311,000,000 -34,000,000 -94,000,000 612,000,000 70,000,000 208,000,000 850,000,000 -146,000,000 425,000,000 -381,000,000 125,000,000 -118,000,000 173,000,000 344,000,000 389,000,000 126,000,000                
          cash flows from financing activities:
                                                 
          dividends paid
        -19,000,000 -15,000,000 -17,000,000 -17,000,000 -19,000,000 -16,000,000 -16,000,000 -17,000,000 -19,000,000 -16,000,000 -16,000,000 -17,000,000 -18,000,000 -15,000,000 -16,000,000 -16,000,000 -17,000,000 -15,000,000 -16,000,000 -17,000,000 -18,000,000 -16,000,000 -16,000,000 -17,000,000 -20,000,000 -18,000,000                
          repurchases of common shares
        -75,000,000 -131,000,000 -118,000,000 -131,000,000 -120,000,000 -90,000,000 -131,000,000 -152,000,000 -129,000,000 -109,000,000 -64,000,000 -24,000,000 -2,000,000 -100,000,000 -97,000,000 -151,000,000 -152,000,000 -191,000,000 -140,000,000 -88,000,000 -77,000,000                     
          net paydowns of financial guaranty variable interest entities’ liabilities
        -3,000,000 -3,000,000 -5,000,000 -4,000,000 -4,000,000 -218,000,000 -5,000,000 -4,000,000 -148,000,000 -8,000,000 -127,000,000 -5,000,000 -9,000,000 -7,000,000 -27,000,000 -24,000,000 -41,000,000 -15,000,000 -15,000,000 -10,000,000 -13,000,000 -14,000,000 -11,000,000 -17,000,000 -35,000,000 -33,000,000                
          payments related to tax withholding for share-based compensation
        -20,000,000 -6,000,000 -28,000,000                                    
          distributions to noncontrolling interest from consolidated investment vehicles
        -97,000,000                                         
          net cash flows from financing activities
        -214,000,000 -149,000,000 -140,000,000 -157,000,000 -170,000,000 -324,000,000 -159,000,000 -173,000,000 -327,000,000 -137,000,000 -200,000,000 -37,000,000 -296,000,000 -43,000,000 -4,000,000 669,000,000 -10,000,000 394,000,000 363,000,000 814,000,000 389,000,000 195,000,000 -21,000,000 189,000,000 -180,000,000 -181,000,000     -3,955,000           
          effect of foreign exchange rate changes
        -2,000,000 2,000,000 -3,000,000 5,000,000 3,000,000 -4,000,000 3,000,000 -1,000,000   1,000,000 1,000,000 -2,000,000 -4,000,000 -1,000,000 -1,000,000 -1,000,000    4,000,000 -7,000,000 1,000,000                
          increase in cash and cash equivalents and restricted cash
        -86,000,000 255,000,000 -161,000,000 143,000,000 54,000,000 -46,000,000 65,000,000 -28,000,000 -149,000,000 171,000,000 -69,000,000 54,000,000 -77,000,000 -64,000,000 8,000,000                           
          cash and cash equivalents and restricted cash at beginning of period
        419,000,000 128,000,000 286,000,000 207,000,000                           
          cash and cash equivalents and restricted cash at end of period
        333,000,000 255,000,000 -161,000,000 143,000,000 182,000,000 -46,000,000 65,000,000 -28,000,000 137,000,000 171,000,000 -69,000,000 54,000,000 130,000,000 -64,000,000 8,000,000                           
          cash flows from operating activities:
                                                 
          net income
                                    -170,004,000 85,489,000 -63,340,000 545,216,000 -169,209,000 32,805,000 38,951,000 42,436,000 37,902,000 -150,094,552 39,185,000 66,750,000 44,348,000 
          adjustments to reconcile net income to net cash flows from operating activities:
                                                 
          non-cash interest and operating expenses
                                    3,747,000 4,795,000 2,876,000 3,159,000 7,612,000 4,980,000 6,582,000 3,855,000 3,775,000 -5,130,938 1,789,000 1,856,000 1,493,000 
          net amortization of premium (discount) on investments
                                                 
          provision for deferred income taxes
                                                 
          net realized investment losses
                                    4,888,000 17,110,000    1,540,000 279,000 55,000 -72,000     
          equity in losses of investees
                                                 
          fair value losses on committed capital securities
                                                 
          fair value losses on trading securities
                                                 
          gain on sale of asset management subsidiaries
                                                 
          change in premiums receivable, net of premiums and commissions payable
                                                 
          change in unearned premium reserve
                                                 
          change in loss and loss adjustment expense reserve and salvage and subrogation recoverable
                                                 
          change in current income taxes
                                        9,670,000     -16,955,441 -16,014,000   
          change in credit derivative assets and liabilities
                                                 
          distributions from equity method investments
                                                 
          cash flows from consolidated investment vehicles:
                                                 
          purchases of securities
                                                 
          sales of securities
                                                 
          maturities and paydowns of securities
                                                 
          proceeds from (purchases of) money market funds
                                                 
          other changes in consolidated investment vehicles
                                                 
          fixed-maturity securities, available for sale:
                                                 
          paydowns on financial guaranty variable interest entities’ assets
                           13,000,000 14,000,000 16,000,000                    
          net proceeds from sale of assets and liabilities held for sale
                                                 
          issuance of long-term debt, net of issuance costs
                        394,000,000                       
          redemptions and purchases of debt, including make-whole payment
                                                 
          repayment of warehouse financing debt
                 -14,000,000 -152,000,000 -38,000,000 -14,000,000   -476,000,000 -311,000,000 -274,000,000 -476,000,000                     
          distributions to noncontrolling interests from consolidated investment vehicles
             -7,000,000 -3,000,000 -8,000,000 -2,000,000 -70,000,000 -7,000,000 -3,000,000 -10,000,000 -6,000,000 -2,000,000                        
          purchases to cover securities sold short
                                                 
          proceeds from securities sold short
                                                 
          proceeds from issuance of collateralized loan obligations
                     1,001,000,000 371,000,000 1,197,000,000 947,000,000 380,000,000 752,000,000 377,000,000 -1,000,000                   
          repayment of collateralized loan obligations
                   -1,000,000 -372,000,000 -459,000,000 -363,000,000                       
          proceeds from issuance of warehouse financing debt
                     109,000,000 91,000,000 576,000,000 215,000,000 330,000,000 462,000,000 329,000,000 217,000,000                     
          contributions from noncontrolling interests to consolidated investment vehicles
                     22,000,000 17,000,000 32,000,000 3,000,000 6,000,000                        
          borrowing (payment) under credit facility
                                                 
          sale of asset management subsidiaries, net of cash
                                                 
          redemption of debt
                                                 
          borrowing (payment) under credit facilities
                  26,000,000 -30,000,000                             
          benefit for deferred income taxes
                                     3,033,000      -4,187,000 9,517,000     
          equity in (earnings) losses of investees
                                                 
          fair value losses (gains) on committed capital securities
                                                 
          fair value losses (gains) on trading securities
                                                 
          loss on extinguishment of debt
                                                 
          fixed-maturity securities, trading:
                                                 
          purchases of other invested assets
                 -70,000,000 -113,000,000 -5,000,000 -10,000,000 -14,000,000 -3,000,000 -3,000,000 -5,000,000 -35,000,000 -9,000,000 -3,000,000 -32,000,000                     
          sales and return of capital of other invested assets
                 13,000,000 5,000,000 6,000,000 5,000,000       9,000,000 45,000,000 2,000,000                    
          change in loss and loss adjustment expense reserve
                                                 
          supplemental cash flow information
                                                 
          income taxes paid
                                                 
          interest paid on long-term debt
                        9,000,000                         
          supplemental disclosure of non-cash activities:
                                                 
          puerto rico salvage
                                                 
          fixed-maturity securities, available-for-sale, received as salvage
                        610,000,000                         
          fixed-maturity securities, available-for-sale, ceded to a reinsurer
                        27,000,000                         
          fixed-maturity securities, trading, received as salvage
                        184,000,000                         
          fixed-maturity securities, trading, ceded to a reinsurer
                        6,000,000                         
          debt securities of financial guaranty variable interest entities received as salvage
                        54,000,000                         
          contributions from noncontrolling interests
                                                 
          distributions to noncontrolling interests
                                                 
          reconciliation of cash and cash equivalents and restricted cash to the consolidated balance sheets:
                                                 
          cash
                        119,000,000 19,000,000 -43,000,000     154,000,000 139,000,000                 
          restricted cash
                        12,000,000 1,000,000 -3,000,000                       
          cash of financial guaranty variable interest entities
                                                 
          cash and cash equivalents of consolidated investment vehicles
                        158,000,000                         
          cash and cash equivalents and restricted cash at the end of period
                        289,000,000                         
          return of capital from and sales of other invested assets
                      1,000,000 3,000,000 31,000,000                         
          redemptions and purchases of debt, including make-whole
                                                 
          borrowings under credit facilities
                      45,000,000                           
          paydown of long-term debt
                             -1,000,000 -21,000,000 -19,000,000                
          investing activities
                                                 
          fixed-maturity securities:
                                                 
          financing activities
                                                 
          payments under credit facilities
                        -1,000,000                         
          increase in cash and restricted cash
                        -53,000,000  -56,000,000 -50,000,000 48,000,000 -108,000,000 -67,000,000 252,000,000 38,000,000 -27,000,000                
          cash and restricted cash at beginning of period
                        342,000,000  298,000,000 183,000,000 144,000,000                
          cash and restricted cash at end of period
                        289,000,000  -56,000,000 -50,000,000 346,000,000 -108,000,000 -67,000,000 252,000,000 221,000,000 117,000,000                
          reconciliation of cash and cash equivalents and restricted cash to the condensed consolidated balance sheets:
                                                 
          equity in earnings of investees
                                                 
          acquisitions, net of cash acquired
                                                 
          sales of financial guaranty variable interest entities’ assets
                                                 
          supplemental disclosure of non-cash investing activities:
                                                 
          purchases of fixed-maturity securities
                                                 
          sales of fixed-maturity securities
                                                 
          cash paid (received) during the period for:
                                                 
          income taxes
                                 10,000,000 2,000,000 82,366,000 21,350,000 -14,514,000 20,200,000 500,000 8,051,000 8,400,000  -2,600,000     
          interest on long-term debt
                          10,000,000     32,000,000 9,000,000                 
          reconciliation of cash and restricted cash to the condensed consolidated balance sheets:
                                                 
          cash of consolidated investment vehicles
                          -10,000,000     93,000,000 82,000,000                 
          short-term investments with maturities of over three months:
                                                 
          contributions from noncontrolling interests to investment vehicles
                           5,000,000 3,000,000 19,000,000 3,000,000 43,000,000 23,000,000                 
          distributions to noncontrolling interests from investment vehicles
                           -2,000,000 -6,000,000 -24,000,000 -3,000,000                   
          operating activities:
                                                 
          change in ceded unearned premium reserve
                                                 
          other changes in investment vehicles
                                                 
          proceeds from borrowing by warehouse
                                                 
          repayment of warehouse loans and equity
                                                 
          purchases of fixed-maturity investments
                                                 
          sales of fixed-maturity investments
                                                 
          reconciliation of cash and restricted cash to the consolidated balance sheets:
                                                 
          cash and restricted cash at the end of period
                               252,000,000 221,000,000                 
          sales of financial guaranty variable interest entities' assets
                                                 
          repurchases of common stock
                              -40,000,000 -164,000,000 -116,000,000 -100,000,000                
          net proceeds from paydowns on financial guaranty variable interest entities’ assets
                               18,000,000 37,000,000 33,000,000 137,595,000               
          net proceeds from sales of financial guaranty variable interest entities' assets
                                                 
          proceeds from sales and return of capital of other invested assets
                                                 
          proceeds from sales of other invested assets
                                1,000,000                 
          net proceeds from sales of financial guaranty variable interest entities’ assets
                                                 
          1.
                                                 
          maturities
                                 225,000,000 253,488,000 497,429,000 2,000,000 3,500,000 3,000,000 100,000 3,250,000 5,979,000 6,020,000 200,000 2,000,000 -13,985,325 1,000,000   
          net sales (purchases) of short-term investments
                                 -116,000,000                
          acquisition of mbia uk, net of cash acquired
                                                 
          repurchases of common stock to pay withholding taxes
                                 -12,000,000                
          proceeds from option exercises
                                 1,000,000                
          interest
                                 21,000,000 12,082,000 46,300,000     11,667,000 210,000      
          net cash flows from (used in) operating activities
                                  75,256,000               
          fixed maturity securities:
                                                 
          net cash flows from (used in) investing activities
                                  106,713,000               
          share activity under option and incentive plans
                                                 
          repayment of long-term debt
                                                 
          net cash flows from (used in) financing activities
                                                 
          effect of exchange rate changes
                                  2,736,000     80,000 43,000 340,000 168,000 -166,000 -18,000     
          increase in cash
                                                 
          cash at beginning of period
                                  214,544,000               
          cash at end of period
                                  182,003,000               
          public finance
                                  786,373,000               
          structured finance
                                  130,802,000               
          total financial guaranty
                                  917,175,000               
          assets
                                                 
          total investment portfolio
                                                 
          premiums receivable, net of ceding commissions payable
                                                 
          ceded unearned premium reserve
                                                 
          deferred acquisition costs
                                                 
          reinsurance recoverable on unpaid losses
                                                 
          salvage and subrogation recoverable
                                                 
          credit derivative assets
                                                 
          deferred tax asset
                                                 
          financial guaranty variable interest entities’ assets, at fair value
                                                 
          other assets
                                                 
          total assets
                                                 
          liabilities and shareholders’ equity
                                                 
          unearned premium reserve
                                                 
          loss and loss adjustment expense reserve
                                                 
          reinsurance balances payable
                                                 
          long-term debt
                                                 
          credit derivative liabilities
                                                 
          current income tax payable
                                                 
          financial guaranty variable interest entities’ liabilities with recourse, at fair value
                                                 
          financial guaranty variable interest entities’ liabilities without recourse, at fair value
                                                 
          other liabilities
                                                 
          total liabilities
                                                 
          commitments and contingencies
                                                 
          common stock
                                                 
          additional paid-in capital
                                                 
          retained earnings
                                                 
          accumulated other comprehensive income, net of tax provision
                                                 
          deferred equity compensation
                                                 
          total shareholders’ equity
                                                 
          total liabilities and shareholders’ equity
                                                 
          operating activities
                                                 
          net amortization of (discount) premium on fixed maturity securities
                                                 
          accretion of discount on premium receivable
                                                 
          unrealized losses (gains) on credit derivatives
                                                 
          fair value gain on committed capital securities
                                                 
          change in deferred acquisition costs
                                    8,438,000 7,927,000            
          change in accrued investment income
                                          578,000  84,000     
          change in premiums receivable
                                       -1,950,000 3,912,000 -2,520,000 5,377,000   -7,442,192 -4,862,000   
          change in prepaid reinsurance premiums
                                    534,000 1,826,000      1,456,000 3,486,000 -2,307,274 909,000 477,000 924,000 
          change in unearned premium reserves
                                    69,405,000 91,945,000 24,457,000 193,225,000 126,989,000 32,351,000 16,538,000 24,759,000 17,807,000 -6,638,122 -2,226,000 -18,584,000 27,464,000 
          change in reserves for losses and loss adjustment expenses
                                     13,870,000 444,000 -12,265,000 32,108,000         
          change in profit commissions payable
                                                 
          change in funds held by company under reinsurance contracts
                                     279,000 284,000 253,000 3,599,000 368,000 3,249,000 1,074,000 -1,000  1,354,000 1,372,000 1,631,000 
          tax benefit for stock options exercised
                                      6,000           
          other changes in credit derivatives assets and liabilities
                                      13,853,000           
          (purchases) sales of short-term investments
                                                 
          net cash flows used in investing activities
                                                 
          net proceeds from issuance of common stock
                                                 
          net proceeds from issuance of equity units
                                                 
          increase in cash and cash equivalents
                                     7,023,000  1,746,000 330,000    -13,541,000    4,745,000 
          cash and cash equivalents at beginning of period
                                    12,305,000 8,048,000 4,785,000   16,978,000 
          cash and cash equivalents at end of period
                                    -10,821,000 19,328,000 -2,260,000 1,746,000 8,378,000 18,029,000 5,714,000  -13,541,000  2,317,000 -16,975,000 21,723,000 
          supplementary cash flow information
                                                 
          cash paid during the period for:
                                                 
          unrealized (gains) losses on credit derivatives
                                                 
          change in current income taxes receivable
                                     26,005,000            
          other changes in credit derivative assets and liabilities
                                        7,573,000         
          equity offering costs
                                                 
          net cash flows used in financing activities
                                                 
          cash (received)/paid during the period for:
                                                 
          net amortization of premium on fixed maturity securities
                                      105,000 1,117,000 1,178,000 1,159,000 267,000 1,742,000 1,417,000 -5,198,974 1,746,000 1,787,000 1,673,000 
          sales (purchases) of short-term investments
                                         33,677,000 37,722,000   -112,962,989 58,292,000 -57,578,000 112,309,000 
          net proceeds from common stock issuance
                                      -7,000           
          debt issue costs
                                                 
          benefit from deferred income taxes
                                                7,326,000 
          net realized investment (gains) losses
                                                 
          sales of short-term investments
                                       -44,335,000 62,142,000         
          unrealized losses on credit derivatives
                                        256,420,000         
          change in liability for tax basis step-up adjustment
                                                 
          tax benefit from employee stock options
                                         41,000 96,000       
          change in unrealized losses (gains) on derivative financial instruments
                                         17,223,000 9,714,000   -9,140,484    
          repayment of notes assumed during formation transactions
                                                 
          increase increase in cash and cash equivalents
                                          929,000       
          goodwill impairment
                                                 
          change in unrealized (gains) losses on derivative financial instruments
                                                 
          change in due from affiliate
                                                 
          change in value of reinsurance business assumed
                                                 
          net proceeds from sale of subsidiary
                                                 
          proceeds from employee stock purchase plan
                                                 
          net proceeds from issuance of series a enhanced junior subordinated debentures
                                                 
          net proceeds from issuance of senior notes
                                                 
          repayment of note payable
                                                 
          proceeds from cash flow hedge
                                                 
          decrease in cash and cash equivalents
                                                 
          cash and cash equivalents at beginning of year
                                                 
          cash and cash equivalents at end of year
                                                 
          change in loss recovery receivable
                                                 
          net realized investment gains
                                                 
          share activity under options and incentive plans
                                                 
          change in unrealized losses(gains) on derivative financial instruments
                                                 
          change in unrealized gains on derivative financial instruments