US stocks snap 3-day losing streak in roller coaster week

Gains among technology companies helped snap a three-day losing streak for U.S. stocks Friday, though the market ended with its worst weekly loss since March.

The modest rebound came at the end of a turbulent week on Wall Street as escalating tensions between the U.S. and North Korea rattled global markets.

In the first four days of the week, the Standard & Poor’s 500 index swung from marking its...