Giant Write-Down Is Seen for Merrill

By JULIA WERDIGIER and JENNY ANDERSON

Merrill Lynch is expected to suffer $15 billion in losses stemming from soured mortgage investments, almost double its original estimate, prompting the firm to raise additional capital from an outside investor.

Merrill, the nation’s largest brokerage firm, is expected to disclose the huge write-down when it reports earnings next week, according to people who have been briefed on its plans. The loss far exceeds the $12 billion hit many Wall Street analysts had forecast.