NEW YORK - SEPTEMBER 14:  London Mayor Boris Johnson opens the NASDAQ exchange on September 14, 2009 in New York, New York. Priesident Obama gave a major speech on the state of the economy today at Wall Street. Getty Images logo Getty Images 29 months ago

NEW YORK - SEPTEMBER 14: London Mayor Boris Johnson opens the NASDAQ exchange on September 14, 2009 in New York, New York. Priesident Obama gave a major speech on the state of the economy today at Wall Street.