The stock market is open for business between 9:30 a.m. and 4 p.m. Monday to Friday. Billions of shares are traded in the American markets, making them very liquid and efficient.

Get frequent stock market updates that focus on broad U.S. and international markets approximately every half-hour starting at 6 a.m ... have an impact on the stock market on the following trading day ...

China, which Trump announced will get hit with a 10 percent tariff starting Tuesday, will reportedly have a call with the ...

Cboe Global Markets on Monday announced plans to expand U.S. equities trading to a 24-hour, five-days-a-week format to meet ...