CBOE To Start Overnight Dissemination Of CBOE Volatility Index (VIX) April 15 - VIX Index To Be Available During Extended Trading Hours, From 2:15 a.m. To 8:15 a.m. CT

Chicago Board Options Exchange^® (CBOE^®) today announced that it plans to start overnight dissemination of the CBOE Volatility Index^® (VIX^® Index) on April 15. Values for the VIX Index are expected to be published every 15 seconds, beginning at 2:15 a.m. CT, during CBOE's extended trading hours session for VIX and S&P 500^® Index (SPX) options, which run from 2:00 a.m. to 8:15 a.m. CT, Monday through Friday.