Associated Press
Jamie Dimon, CEO of JPMorgan Chase, testified before Congress last week to explain the bank's reported $2 billion loss blamed on trades in credit derivatives, which were meant to hedge against financial risk.

NEW YORK — JPMorgan Chase stock declined more than 2 percent on Thursday, making it one of the worst-performing banks, after a published report said its loss on a bad trade could be far higher than the bank first estimated.

The New York Times, citing an internal report at the bank, reported that the loss could reach $9 billion. JPMorgan's initial estimate was $2 billion when it disclosed the trade in May, although CEO Jamie Dimon said then that the loss could grow.

JPMorgan Chase stock closed down 90 cents, or 2.4 percent, at $35.88. Financial stocks as a group lost 0.2 percent. JPMorgan traded at about $41 before the loss was disclosed and has closed as low as $31 in the weeks since.

The Times story said the $9 billion figure reflected a worst-case estimate by the bank. But because the bank has sold the most volatile part of the trading position, the loss could be $6 billion to $7 billion, The Times reported.

A JPMorgan representative declined to comment.

"The bottom line is the reputation of JP Morgan is hurt," said Paul Miller Jr., an analyst for FBR Capital Markets & Co. "I don't think people care if it is a $6 billion or $9 billion loss."

The company is expected to provide more detail when it reports its quarterly earnings July 13.

"There's not a lot they can give us until they back out of the trade," Miller said. " I don't care what the number is, what I care about is are we done with the trade and do we need to adjust earnings moving forward."

In May, JPMorgan said the loss came from trading in credit derivatives designed to hedge against financial risk, not to make a profit for the bank.