WASHINGTON - SEPTEMBER 30:  Securities and Exchange Commission (SEC) Chair Mary Schapiro speaks during a public roundtable meeting at the headquarters of SEC September 30, 2009 in Washington, DC. The meeting was to discuss possible measures to limit the short selling of stocks. Getty Images logo Getty Images 28 months ago

WASHINGTON - SEPTEMBER 30: Securities and Exchange Commission (SEC) Chair Mary Schapiro speaks during a public roundtable meeting at the headquarters of SEC September 30, 2009 in Washington, DC. The meeting was to discuss possible measures to limit the short selling of stocks.