Stocks surrendered early gains and turned negative on Wall Street after the White House said President Donald Trump would impose promised tariffs on some key U.S. trading partners. The S&P 500 fell 0.

Here's what you need to know about whether U.S. stock markets will be open on Martin Luther King Jr., Day this year.

Asian shares are mostly higher in muted trading after the U.S. Federal Reserve opted not to cut interest rates for the first time since it began trying to help the economy through lower rates in Septe