U.S. stocks slumped as worries flared again on Wall Street about tariffs and inflation. The S&P 500 fell 0.9% Friday and wiped out what had been a modest gain for the week. The Dow Jones Industrial Average sank 1%,

US stocks mostly gain early Thursday as investors weigh earnings reports. Amazon results are due after the close and monthly jobs on Friday.

Wall Street drifted through mixed trading Thursday as rising fashion and cigarette stocks worked against drops for Ford Motor and Qualcomm. The S&P 500 rose 0.4% following healthy gains for stock markets across much of Europe and Asia.