Stocks have taken a beating—but this week may provide a more definitive direction for the coming months. All three major U.S. indexes were deeply in the red for a second consecutive day Friday. The S&P 500 is down 17% from the record close it notched in late February,

President Trump defends tariffs amid market mayhem.

U.S. stock futures and global indexes continue to plung in reaction to U.S. tariffs and the international response, and bitcoin hits its lowest level since November. Here's what investors need to know today.