Ambac Financial Group, Inc. (NYSE: ABK) (Ambac) announced that it will host a conference call for investors on November 4 at 11:00 a.m. Eastern to discuss third quarter 2009 results which are scheduled to be released at 8:30 a.m. that morning.

The dial in number for the call is 877-407-0782 (U.S.) and 201-689-8567 (outside the U.S.). The conference call will also be broadcast live on Ambac’s web site at www.ambac.com. Beginning at 2 p.m. on November 4 through November 20, the conference call will be available in replay. The replay numbers are 877-660-6853 (U.S.) and 201-612-7415 (outside the U.S.). The account and confirmation numbers for the replay are 286 and 335136, respectively. A recording will also be available on Ambac’s web site approximately one hour after the end of the conference call.

About Ambac

Ambac Financial Group, Inc., headquartered in New York City, is a holding company whose affiliates provide financial guarantees and financial services to clients in both the public and private sectors around the world. Ambac's principal operating subsidiary, Ambac Assurance Corporation, a guarantor of public finance and structured finance obligations, has a Caa2 rating (developing outlook) from Moody's Investors Service, Inc. and a CC rating (outlook developing) from Standard & Poor's Ratings Services. Ambac Financial Group, Inc. common stock is listed on the New York Stock Exchange (ticker symbol ABK).