We hear about stock market numbers every day on the show, but what are those numbers really telling us?
Here's how and why the stock market responds instantaneously to tweets by President Trump.
Health care stocks paved the way for Monday's modest gains, but major U.S. indexes ended 2018 in the red.
Federal law prohibits markets from being closed more than three consecutive days.
350 millionths of a second can make quite a difference.
A critic of high-frequency trading is trying to launch a new stock exchange.