Is Robinhood open on 24/7? Yes （１ ｘ８７７ｘ３９１ｘ６４４０）24 hour trading open Explanation Trading hours The US stock market is normally open Monday to Friday from 9:30 AM ET to 4 PM ET, （１ ｘ８７７ｘ３９１ｘ６４４０）excluding holidays But （１ ｘ８７７ｘ３９１ｘ６４４０）(US)A, Robinhood provides extended-hours trading and the 24 Hour Market, which enables trading during o... https://support.google.com/edu/classroom/thread/333472293?hl=en&sjid=15990808408801984380-NC