Investors have been careening from fear to relief and back again as they react to news about trade talks and the health of the economy.
CEO Tim Cook says the tech giant's October-December revenue will fall well below the company's earlier projections and those of analysts.
Wall Street puts the market on track to end a topsy-turvy, volatile week with a gain.
The Dow rallies more than 1,000 points after a four-day losing streak, but the market remains on track for its worst December since 1931.
The president will never admit his trade war and tax bill have backfired spectacularly, so he's blaming the Fed and Chairman Jerome Powell.
"He is seeking open warfare on Christmas Eve," says a financial historian of Donald Trump's tweet, a contrast to officials' assurances.
The Dow had been 381 points up before the U.S. central bank's fourth increase on short-term rates this year. It ends the day at 351 down.
A jittery market responds as White House officials struggle to explain what was agreed upon by Presidents Donald Trump and Xi Jingping.
Our ancestors took action against wealth inequality similar to that we're seeing in the U.S. today. We can too.