Markets Right Now: US stocks open lower as sellers return

NEW YORK (AP) — The latest on developments in financial markets (all times local):
9:35 a.m.
Wall Street’s wild Christmas week goes on, with the Dow Jones Industrial Average slumping 300 points at the open Thursday, a day after notching its biggest-ever point gain.
Volatility has been the norm in December. The Dow has dropped 1 percent or more in eight of the 17 trading sessions.
Even with Wednesday’s big gains, the Dow, S&P 500 and Nasdaq are all down more than 10 percent