Assured Guaranty Ltd. Chief Executive Officer to Present at William Blair & Company 2004 Growth Stock Conference

Monday, June 21, 2004 9:15 am EDT

Dateline:

HAMILTON, Bermuda

Public Company Information:

NYSE:
AGO

HAMILTON, Bermuda--(BUSINESS WIRE)--Assured Guaranty Ltd. (NYSE: AGO) has announced that Dominic Frederico, Chief Executive Officer of Assured Guaranty Ltd., will participate in the William Blair & Company 2004 Growth Stock Conference at the Four Seasons Hotel in Chicago, Illinois. Mr. Frederico is currently scheduled to speak on Wednesday, June 23, 2004 at 1:00 p.m Central time, a change from the previous schedule of 1:40 p.m.

Live and archived webcasts of the presentation will be available at http://www.wallstreetwebcasting.com/webcast/blair3/ago. The archived webcast will be available ninety days following the presentation.

Assured Guaranty Ltd. is a Bermuda-based holding company providing credit enhancement products to the municipal finance, structured finance and mortgage markets. More information can be found at http://www.assuredguaranty.com.

Contact:

Assured Guaranty Ltd., New York
Sabra Purtill, 212-408-6044
spurtill@assuredguaranty.com