This screenshot of a chart of the NASDAQ composite provided by FactSet on Thursday, Aug. 22, 2013, shows trading in the Nasdaq, a major stock exchange dominated by the biggest names in technology, as ... more 
This screenshot of a chart of the NASDAQ composite provided by FactSet on Thursday, Aug. 22, 2013, shows trading in the Nasdaq, a major stock exchange dominated by the biggest names in technology, as it was halted shortly after midday Thursday due to a technical glitch. The disruption sent brokers scurrying to figure out what went wrong and raised new questions about the pitfalls of computer-driven stock trading. (AP Photo/FactSet) less 
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Associated Press | Photo By FactSet
Thu, Aug 22, 2013 7:10 PM EDT