Drew Angerer/Getty Images

Global markets shuddered Tuesday after President Donald Trump threatened tariffs on billions of dollars worth of goods from China, putting the world's largest economies on the brink of a trade war. The Dow Jones industrial average turned negative for the year amid its longest losing streak since March 2017. The dollar hit an 11-month high, and Treasury yields slid.

Here is the scoreboard:

2,760.29 -13.46 (-0.49%)

And a look at the upcoming economic calendar:

• Quarterly trade data, monthly existing home sales, and weekly oil numbers are due out in the US.
• Central bank leaders from the US, Australia, and Japan speak at an ECB forum in Portugal.