SPX and VIX Options
CBOE launched trading in the ETH session on Monday, March 2, 2015 for options on the CBOE Volatility Index® (VIX® Index), and on Monday, March 9, 2015 for options on the SPX and SPXW (SPX Weeklys and SPX End-of-Month).
In 2010 CBOE Futures Exchange (CFE®) began offering futures on the VIX® Index during select limited Extended Trading Hours. Beginning in June 2014, VIX futures trading hours were expanded to nearly 24 hours a day, five days a week.
* All times shown above are Central (Chicago) times.