Does anyone know why the CME opening was delayed 30 minutes until 17:30 (CDT) instead of the usual 17:00 on trade date 30 April 2018, i.e. at 17:30 on 29 April 2018? As far as I can tell, there were no holidays or other preannounced reasons for this delay, and no mention of it in the ES Journal - 2017/2018 thread.
More generally, is there anywhere online that keeps track of unexpected market closures due to circuit breakers, computer glitches, etc.? (For backtesting purposes.)
More generally, is there anywhere online that keeps track of unexpected market closures due to circuit breakers, computer glitches, etc.? (For backtesting purposes.)