U.S. stocks are stumbling this month amid worries over stretched valuations, with the S&P 500’s concentration in Big Tech making it vulnerable to pullbacks like the one seen Thursday.

The latest round of earnings is being closely monitored to gauge whether the stock market’s big values are justified. The ...

“ [T]here is more earnings support for the current tech bubble than the one in the late 1990s,” said Ed Yardeni, founder of Yardeni Research. “There isn’t as much air in the current bubble. It isn’t ...

Quantum computing stocks skyrocketed in the last year, delivering returns that dwarf those of AI stocks over comparable periods. But the path to commercialization is uncertain, and the stocks remain ...

Strong demand for cutting-edge process technologies drove a 41% year-over-year increase in revenue last quarter. Chipmaking ...

A top executive at OpenAI is pouring cold water on reports last week that the company was lining up a $1 trillion initial ...

Shares in Europe and Asia have retreated following a broad decline on Wall Street spurred by selling of Big Tech shares.

The technology sector is in a state of continual transformation, driven by advancements in areas such as artificial ...

Wells Fargo said it thinks investors should be trimming exposure to tech stocks and adding to select areas of the market on ...

Shares in Europe and Asia have retreated following a broad decline on Wall Street spurred by selling of Big Tech shares. But ...

Tokyo's benchmark Nikkei 225 index has fallen more than 4% and other shares in Asia also sank after a retreat on Wall Street ...