Here we are again, with markets going wild. In my view, the Nasdaq has entered a bubble. It’s still early, and it could run ...

Investors have grown more concerned over the run-up in tech stocks and valuations of private AI companies, stoking fears of a ...

Stock-market bulls convinced of the power of AI to transform the economy often shrug off comparisons to the dot-com bubble a quarter century ago. The real profits are already showing up, unlike in the ...

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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 ...

AI optimism is driving the S&P 500 price-to-book ratio to records, surpassing dot-com levels. High valuations reflect expectations for AI-driven earnings. While the ratio's level is head-turning, it ...