Cboe to Extend Global Trading Hours for VIX and SPX Options to Nearly 24 Hours, Beginning November 21, 2021

Aims to meet growing customer demand for SPX, VIX options to hedge and manage exposure to broad U.S. equity market and global equity volatility
Move to extend global trading hours expected to complement upcoming planned launch of Cboe Europe Derivatives and the planned acquisition of Chi-X Asia Pacific
New curb session planned to go live on September 27, 2021

https://ir.cboe.com/news-and-events/2021/06-15-2021/cboe-extend-global-trading-hours-vix-and-spx-options-nearly-24-hours-beginning-november-21-2021