When Does the Stock Market Open? U.S. stock market exchanges—notably the New York Stock Exchange (NYSE) and the Nasdaq—typically open at 9:30 a.m. and close at 4:00 p.m. Eastern time (ET) on U.S.

What Is After-Hours Trading? After-hours trading is the four-hour period after the New York stock markets close for the day but traders are allowed to continue to buy and sell shares. The New York ...