Palantir spiked Tuesday, leading a tech rally, but it's still a roller-coaster market. Google dived on mixed earnings.

Calm returned to Wall Street, and tech stocks led U.S. indexes broadly higher. The S&P 500 rose 0.7% Tuesday, a day after swinging sharply on worries that President Donald Trump’s tariffs could spark ...

The table below lists the S&P 500's top sectors by weighting as of Jan. 27, 2025. The information technology, financials, health care, and consumer discretionary sectors carry a cumulative weight of ...

Yahoo Finance will chronicle the latest news and updates on Trump's tariffs — from the threats to the eventual policy.