VIX Weeklys futures began trading at CBOE Futures Exchange (CFE®) on July 23, 2015. VIX Weeklys options began trading at Chicago Board Options Exchange, Incorporated (CBOE®) on Thursday, October 8, 2015. New weekly expirations for VIX futures and options are listed on Thursdays (excluding holidays) and expire on Wednesdays. CBOE and CFE may list up to six consecutive weekly expirations for VIX futures and options.
For more details, see www.cboe.com/VIXWeeklys