Pre-market and after-hours trading is available Monday through Friday on days when the market is open. Pre-market trading is available from 7:30 a.m. to 9:30 a.m. ET. After-hours trading is from 4:01 p.m. to 8:00 p.m. ET. On any day, extended-hours trading may be unavailable, delayed, interrupted or terminated early without prior notice. Extended-hours trading is not available on days the market is closed, preceding a market holiday or if the market is closed due to an emergency. This service is not available for clients using a 10-digit User ID.