CBOE dark for much of day due to software glitch, http://www.scmp.com/business/money/markets-investing/article/1223603/cboe-dark-much-day-due-software-glitch …
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CBOE dark for much of day due to software glitch, http://www.scmp.com/business/money/markets-investing/article/1223603/cboe-dark-much-day-due-software-glitch …