Investors have grown more concerned over the run-up in tech stocks and valuations of private AI companies, stoking fears of a bubble. WSJ’s Hannah Erin Lang uses three charts to explain what’s behind ...

The first lesson I learned about investing at the age of 11 was to know which way the market was going. Is it going up or down? It sounds too simple, but it’s the last thing most people consider.

Economists and analysts have warned artificial intelligence stocks are showing signs of a bubble—with hype-inflated prices disconnected from their actual value—so we turned to AI chatbots for guidance ...

Most tech investors credit artificial intelligence (AI) with ending the 2022 bear market and sparking a boom in stock prices. Those gains created a new crop of transformational stocks, with companies ...

Call it a market of micro-manias. Ed Yardeni, market veteran and president of Yardeni Research, calls it "a bubble in fears of bubbles," arguing that the "everything bubble" never materialized.

Mr. Bernstein was the chair of President Joe Biden’s Council of Economic Advisers from 2023 to 2025. Mr. Cummings served the council as an economist from 2021 to 2023. You may remember the recession ...

Forget about the froth in tech valuations. The real excess might be building up in energy stocks. For all the fears about stretched technology shares, many of those companies are hugely profitable ...

A growing chorus of voices is warning there could be an AI bubble, as companies with their fortunes closely tied to the technology see their valuations skyrocket. High-profile figures, from OpenAI CEO ...

At this point, even the concept of an “AI bubble” seems to be a bubble. (In fact, Deutsche Bank analysts said last month that the “AI bubble” bubble has already burst.) Perhaps some corners of the ...

Large technology companies are spending furiously on artificial-intelligence infrastructure — despite the associated revenue not being there yet. That sort of backdrop has some on Wall Street ...

Bubble tea can be a delicious, sweet treat — but is it all that good for you? Consumer Reports has released the results of a recent investigation into the contents of a bubble tea (also referred to as ...

A version of this story will appear in CNN Business’ Nightcap newsletter. To get it in your inbox, sign up for free here. At this point, even the concept of an “AI bubble” seems to be a bubble. (In ...