Standard & Poor's has placed muni bond insurer Assured Guaranty Municipal Corp. on negative CreditWatch for significant concentration risk in its insured portfolio.

The rating agency also placed related companies Assured Guaranty Corp. and Assured Guaranty Re Ltd. on negative watch.

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.