Assured Guaranty Ltd. (NYSE: AGO) (?the Company?) announced that it will host a conference call and webcast on the topic of Standard & Poor's Ratings Services' proposal to change its criteria for rating financial guaranty insurance companies. The conference call will begin at 11:00 a.m. Eastern Time (12:00 p.m. Atlantic Time) on Tuesday, February 1, 2011. Slides to be used on the call will be available prior to the call in the Investor Information section of the Company's website located at http://www.assuredguaranty.com.

The conference call will be available via live and archived webcast in the Investor Information section of the Company's website at http://www.assuredguaranty.com or by dialing 866-730-5766 (in the U.S.) or 857-350-1590 (International), passcode 15065198. A replay of the call will be available through March 1, 2011. To listen to the replay, dial: 888-286-8010 (in the U.S.) or 617-801-6888 (International), passcode 47220665.

Assured Guaranty Ltd. is a publicly-traded Bermuda-based holding company. Its operating subsidiaries provide credit enhancement products to the U.S. and international public finance, infrastructure and structured finance markets. More information on the Assured Guaranty family of companies can be found at www.assuredguaranty.com.

Assured Guaranty Ltd.
Equity Investors:
Sabra Purtill, 212-408-6044
Managing Director, Investor Relations
spurtill@assuredguaranty.com
or
Ross Aron, 212-261-5509
Assistant Vice President, Investor Relations
raron@assuredguaranty.com
or
Media:
Betsy Castenir, 212-339-3424 or 917-940-2462
Managing Director, Corporate Communications
bcastenir@assuredguaranty.com
or
Fixed Income Investors:
Robert Tucker, 212-339-0861
Managing Director, Fixed Income Investor Relations
rtucker@assuredguaranty.com
or
Michael Walker, 212-261-5575
Director, Fixed Income Investor Relations
mwalker@assuredguaranty.com