NEW YORK - Assured Guaranty reported a hefty loss for the fourth quarter late Thursday as the insurer suffered from drastic deterioration in the value of the mortgage debt it guarantees.

The Bermuda-based insurer posted a $157.5 million loss for the fourth quarter last year, compared with a $220.8 million profit in the fourth quarter of 2009.

Subscribe Now

Independent and authoritative analysis and perspective for the bond buying industry.

14-Day Free Trial

No credit card required. Complete access to articles, breaking news and industry data.