SEC to probe Nasdaq following glitches in Facebook IPO The SEC is probing Nasdaq glitches in Facebook's IPO. Zef Nikolla/Facebook via Getty / May 18, 2012 May 18, 2012, 1:51 p.m. NEW YORK -- The U.S. Securities and Exchange Commission will review trading glitches with Nasdaq's handling of Facebook's IPO. "As is our practice, staff will review the incident with Nasdaq to determine its cause and steps that will be taken to address it," SEC spokesman John Nester said in a statement after an inquiry from The Times. Brokerages complained of technical issues with the Nasdaq exchange, as investors did not know whether their trades in the highly anticipated stock offering had been executed. The increasingly computerized nature of Wall Street trading has come under regulatory scrutiny ever since the May 2010 "flash crash," in which $1 trillion briefly vanished from the stock market. Facebook underwriters prop up stock as it nears break-even mark