MBIA Inc. stocks climbed in New York Stock Exchange trading after the bond insurer said it will put $900 million into its insurance unit and reported a first-quarter loss that was narrower than some analysts’ estimates, Bloomberg reported.

MBIA, whose market value fell 87 percent in the past year, gained as much as 9.8 percent after reporting an operating loss of $3.01 a share. The net loss was $2.4 billion as the value of derivatives dropped $3.58 billion, New York-based MBIA said in a statement today.

Some analysts had been anticipating MBIA’s loss would be larger after Ambac Financial Group Inc. reported results in April that sent its shares down 43 percent. MBIA, Ambac and the rest of the industry posted record losses after misjudging the value of collateralized debt obligations and securities backed by home-equity loans they guaranteed.

MBIA raised $2.6 billion in capital to help persuade Moody’s Investors Service and Standard & Poor’s to preserve its AAA rating. The company today said it will move capital to its insurance subsidiary after regulators last week said they were concerned that the money remained at the parent company. MBIA shares rose 77 cents to $10.20 in early trading. The stock traded above $70 a year ago.