Assured Guaranty Ltd. Launches Offering of Common Shares and Equity Units.

HAMILTON, Bermuda -- Assured Guaranty Ltd. ("Assured") (NYSE: AGO) today announced a public offering of common shares and equity units.

Assured intends to offer, subject to market and other conditions, $400 million of its common shares in an underwritten registered public offering. In connection with the offering, Assured intends to grant the underwriters a 30-day option to purchase up to an additional $60 million of its common shares.

Assured also intends to offer, subject to market and other conditions, in a concurrent public offering 3,000,000 equity units, with an initial stated amount of $50 per unit, or $150 million in the aggregate. In connection with the offering of equity units, Assured intends to grant the underwriters a 13-day option to purchase up to an additional 450,000 equity units, or $22.5 million. The equity units will initially consist of a forward purchase contract and a 5% undivided beneficial ownership interest in $1,000 principal amount senior note due 2014 to be issued by Assured Guaranty U.S. Holdings, Inc., a subsidiary of Assured. The senior notes will be fully and unconditionally guaranteed by Assured. Under the purchase contract, holders are required to purchase Assured common shares no later than June 1, 2012.

The closing of each offering is not contingent on the closing of the other.

In November 2008, Assured agreed to purchase Financial Security Assurance Holdings, Ltd. ("FSAH") from a subsidiary of Dexia S.A. ("Dexia") for $361 million in cash and up to 44,567,000 Assured common shares. The cash purchase price will be increased by approximately $3 million for the purchase of shares of FSAH that are held by certain of its directors. Assured has the option to reduce by up to half the number of Assured common shares otherwise deliverable to Dexia in exchange for cash at a price of $8.10 per Assured common share. Assured intends to use the net proceeds from the offerings to pay the cash portion of the purchase price and to reduce the number of shares otherwise deliverable in the acquisition by up to approximately 22.28 million shares.

Merrill Lynch & Co. and Deutsche Bank Securities Inc. are acting as joint book-running managers for the common share offering and Merrill Lynch & Co. is acting as sole book-running manager for the equity units offering.

The offerings are being made only by means of a prospectus supplement and accompanying prospectus. Assured has filed a registration statement (including a prospectus and related preliminary prospectus supplements for each of the common share and equity units offerings) with the U.S. Securities and Exchange Commission (SEC) for the offerings to which this communication relates. Before you invest, you should read the applicable preliminary prospectus supplement and the accompanying prospectus for more complete information about Assured and these offerings. You may get these documents for free by visiting EDGAR on the SEC website at www.sec.gov. Alternatively, copies may be obtained from Merrill Lynch & Co., Attention: Prospectus Department, 4 World Financial Center, New York, NY 10080, (1-212-449-1000) (with respect to the common share and equity units offerings) or Deutsche Bank Securities Inc., 100 Plaza One, Second Floor, Jersey City, NJ 07311, (1-800-503-4611) (with respect to the common share offering).

This press release does not constitute an offer to sell or the solicitation of an offer to buy any common shares or equity units, nor will there be any sale of common shares or equity units in any state or jurisdiction in which such offer, solicitation or sale would be unlawful prior to registration or qualification under the securities laws of any such state or jurisdiction.

Assured Guaranty Ltd. is a Bermuda-based holding company. Its operating subsidiaries provide credit enhancement products to the U.S. and international public finance, structured finance and mortgage markets.

Any forward-looking statements made in this press release reflect Assured's current views with respect to future events and financial performance and are made pursuant to the safe harbor provisions of the Private Securities Litigation Reform Act of 1995. Such statements involve risks and uncertainties that may cause actual results to differ materially from those set forth in these statements. For example, Assured's forward-looking statements, including its statements regarding the FSA closing, could be affected by a significant reduction in the amount of reinsurance ceded by one or more of our principal ceding companies, rating agency action such as a ratings downgrade, difficulties with the execution of Assured's business strategy, contract cancellations, developments in the world's financial and capital markets, more severe or frequent losses associated with products affecting the adequacy of Assured's loss reserve impact of market volatility on the marking to market on our contract written in credit default swap form, changes in regulation or tax laws, governmental actions, natural catastrophes, Assured's dependence on customers, decreased demand or increased competition, loss of key personnel, technological developments, the effects of mergers, acquisitions and divestitures, changes in accounting policies or practices, changes in general economic conditions, other risks and uncertainties that have not been identified at this time, management's response to these factors, and other risk factors identified in Assured's filings with the Securities and Exchange Commission. Readers are cautioned not to place undue reliance on these forward-looking statements, which speak only as of the dates on which they are made. Assured undertakes no obligation to publicly update or revise any forward-looking statements, whether as a result of new information, future events or otherwise.