MBIA Inc. said its adjusted pre-tax loss widened to $188 million in the third quarter, from $118 million a year earlier and a $160 million loss in the second quarter. The insurer’s adjusted book value, a non-generally accepted accounting practices measure, fell to $28.68 per share at Sept. 31, from $30.68 per share at December 31.

“Our third quarter financial results were disappointing,” MBIA president and chief financial officer Chuck Chaplin said in a statement Tuesday.

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