NEW YORK (TheStreet) - American Express passed the Federal Reserve's 'stress test' for a second time on Thursday, winning clearance to return billions of dollars to investors through a dividend increase and share buyback valued at about $3.2 billion. American Express benefited from the Fed's decision to methodology used to determine whether 18 of the country's largest lenders are sufficiently capitalized. If the Fed hadn't taken such actions, American Express risked having to wait to return capital to investors until later in the year. According to the Fed, American Express may have ... Read More