MARKETWATCH FRONT PAGE

Over the past several weeks, policy uncertainty has been the biggest driver of moves in the U.S. stock market, with investors fretting that protectionist measures pushed by President Donald Trump could escalate into a trade war, or that recent issues surrounding internet companies could herald a more aggressive regulatory environment against some of the economy’s biggest names. See full story.

Here’s why you should ignore quarterly GDP numbers

Economic growth slowed sharply in the first quarter, so should we be worried that this is the end? See full story.

Trump isn’t tweeting nearly enough, these Amazon stock investors say

Over the past week, President Donald Trump has engaged in something of an one-man attack against the online retail giant Amazon.com Inc., repeatedly criticizing it and Jeff Bezos, the company’s founder, over a variety of issues. See full story.

JPMorgan’s Dimon: Investors underestimate threat of ‘drastic action’ by Fed, other central banks

James Dimon, the head of JPMorgan Chase, delivered his much-anticipated letter to shareholders on Thursday and laid out what he thinks are some of the biggest risks for markets. See full story.

Facebook’s Mark Zuckerberg admits ‘huge mistake’ — up to 87 million users hit by data leak

Facebook Inc. Chief Executive Officer Mark Zuckerberg said Wednesday that he made a “huge mistake” in not focusing more on potential abuse of users’ personal information, as the social-media giant he founded revealed that data breaches were far more extensive than previously known. See full story.

MARKETWATCH PERSONAL FINANCE

There’s a limit to how much people trust the biggest social network on the planet. See full story.