With Wall Street's surge to record highs, the U.S. stock market looks nearly as expensive as ever, and investors are debating whether the lofty valuations are a bearish signal or justified by the technology-heavy market's profit outlook.

Nvidia stock was gaining after key partner Taiwan Semiconductor Manufacturing gave an upbeat outlook on artificial-intelligence processor demand.

The country's largest banks reported earnings that exceeded Wall Street's estimates. Core inflation is calmer than expected.

Companies in the U.S. are expected to buy $1 trillion worth of their own stock in 2025 and remain the largest buyers of U.S. equities, according to Scott Rubner, Citadel Securities' head of equity and equity derivatives strategy.

As more people ask chatbots for financial advice, creating the right prompts is the key to getting useful answers.

Live Updates Live Coverage Updates appear automatically as they are published. Oil Cools Off 9:38 am Citigroup downgraded a pair of oil refinery stocks this morning, cutting both Valero (NYSE: VLO) and Phillips 66 (NYSE: PSX) to neutral.

As part of the arrangement, Baidu will introduce thousands of its Apollo Go autonomous vehicles on Uber’s platform in areas outside of China and the United States.

Around 71% of middle-income Americans are invested in stocks, and they've watched their fortunes rise and fall repeatedly since tariffs were announced.

Wall Street digested a surprisingly cool wholesale inflation reading and more big bank earnings, with one eye on Trump's latest tariff moves.