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 ...

Here are the most important news items that investors need to start their trading day: U.S. stock futures plunged Monday ...

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 ...