Stock Trades | featured news

JPMorgan Chase said Friday that a bad trade had cost the bank $5.8 billion this year, almost triple its original estimate, and raised the prospect that traders had improperly tried to conceal the blunder.

Sam and Charles Wyly, billionaire Texas brothers who gained prominence spending millions of dollars on conservative political causes, committed fraud by using secret overseas accounts to generate more than $550 million in profit through illegal stock trades, the Securities and Exchange Commission charged Thursday.

U.S. securities regulators are considering new curbs to slow stock trades when markets are plunging following Thursday's dramatic sell-off, a person familiar with the matter said on Saturday.