NEW YORK, Friday, March 26, 2010—The International Swaps and Derivatives Association, Inc. (ISDA) announced that its Americas Credit Derivatives Determinations Committee resolved that a bankruptcy credit event has occurred in respect of Ambac Assurance Corporation, which provides financial guarantee insurance for public and structured finance obligations. The Committee also voted to hold an auction for Ambac.

ISDA will facilitate the process by publishing the auction terms on its website www.isda.org/credit, in due course. The auction will be administered by Markit and Creditex.

About ISDA

ISDA, which represents participants in the privately negotiated derivatives industry, is among the world’s largest global financial trade associations as measured by number of member firms. ISDA was chartered in 1985, and today has over 810 member institutions from 57 countries on six continents. These members include most of the world’s major institutions that deal in privately negotiated derivatives, as well as many of the businesses, governmental entities and other end users that rely on over-the-counter derivatives to manage efficiently the financial market risks inherent in their core economic activities.  Information about ISDA and its activities is available on the Association’s web site: www.isda.org.

ISDA is a registered trademark of the International Swaps & Derivatives Association, Inc.