Here's what you need to know now for Monday, March 19.
The Dow, S&P 500 and the tech-heavy Nasdaq declined on Monday as Facebook finds itself in hot water over reports that as many as 50 million of its users may have had their data compromised.
The three major averages are falling sharply on Monday.
Implied volatility for the Dow relative to the broader market is at its highest level since the financial crisis of 2008-2009.
Global stocks held onto modest gains Tuesday, while U.S. equity futures edged higher, even as investors continued to count the costs of President Donald Trump's 'America First' trade and business policies.