Bond insurer Ambac Assurance Corp.’s decision to establish a segregated account to hold its more toxic holdings will have mixed implications for policyholders, Moody’s Investors Service said in a report Monday.

Meanwhile, stock in parent Ambac Financial Group Inc. has soared since it posted fourth-quarter earnings of $558.1 million late Thursday. In the past two trading days, stock is up by a momentous 251%, sending shares $1.61 higher to close at $2.25 yesterday.

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.