Regular session trading is from 9:30 AM EST to 4:00 PM EST.
Options on some securities like SPY, QQQ and VXX trade until 4:15 PM EST. Options on SPX, XSP and VIX trade from 8:00 AM EST until 5:00 PM EST except on the day they expire. Expiring SPX, XSP and VIX options stop trading at 4:00 PM EST. For more details on Index Option Trading, please review that FAQ here:
Pre-market trading for equities is from 7:00 to 9:24 AM EST. Post-market trading for equities is available from 4:00 to 7:55 PM EST. To enter these orders on our website, please select an order duration of PRE or POST respectively.