Exclusive: Trading in VIX options froze after open - CBOE

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CBOE HLDGS (NYSE: CBOE) Delayed: 267.57 --0 (-0%)
Previous Close $267.57    52 Week High $72.53 
Open $267.57    52 Week Low $58.43 
Day High $267.57    P/E 134.46 
Day Low $267.57    EPS $1.99 
Volume 2