Opens After 3.5-Hour Systems Malfunction Shuts Exchange

Keywords

A U.S. flag is displayed as traders work on the floor of the Chicago... News PhotoChicago - Illinois,Chicago Board Options Exchange,Finance,Flag,Horizontal,Illinois,Midwest USA,North America,Problems,Stock Market and Exchange,The Americas,The Media,Trader,Trading,Trading Floor,USA,WorkingPhotographer Collection: Bloomberg 2013 BloombergA U.S. flag is displayed as traders work on the floor of the Chicago Board Options Exchange (CBOE) in Chicago, Illinois, U.S., on Thursday, April, 25, 2013. The CBOE opened for trading three-and-a-half hours late today after a software malfunction shut the derivatives market as its top executives were away at an industry event in Las Vegas. Photographer: Tim Boyle/Bloomberg via Getty Images