Assured Guaranty Ltd. Reports Third Quarter 2010 Operating Income of $222.8 Million ($1.19 per Diluted Share) and Net Income of $180.9 Million ($0.96 per Diluted Share)

Assured Guaranty Ltd. AGO * Third quarter 2010 operating income(1) increased 382% from third quarter 2009 operating income of $46.2 million. Third quarter 2010 operating income per diluted share increased 310% from $0.29 per diluted share in third quarter 2009. Both third quarter 2010 operating income and operating income per share were a record for Assured Guaranty Ltd. * Third quarter 2010 operating income and net income included a $55.8 million ($0.30 per diluted share) tax benefit related to the filing of an amended pre-acquisition tax return of Assured Guaranty Municipal Holdings Inc. (“AGMH”). * Loss and loss adjustment expenses (“LAE”) on contracts written in financial guaranty form and losses incurred on credit derivatives included in operating income totaled $136.0 million in third quarter 2010, a 51% reduction from the prior year period. * September 30, 2010 shareholders' equity per share attributable to Assured Guaranty Ltd. was $22.80, operating shareholders' equity(1) per share was $25.17 and adjusted book value(1) per share was $49.01, increases of 19%, 12% and 1%, respectively, compared to December 31, 2009.