Software bug caused massive glitch: CBOE

A software bug that cropped up when CBOE Holdings was making initial preparations to lengthen the trading day was the ‘root cause’ of the problems that kept the Chicago Board Options Exchange from opening for half of Thursday.

CBOE staff identified and addressed the bug early Thursday, CBOE Chief Executive Bill Brodsky said in a memo to clients.

via Business feed http://www.scmp.com/business/money/markets-investing/article/1226548/software-bug-caused-massive-glitch-cboe