The largest companies have seen their weighting in the S&P 500 rise more quickly than their share of total earnings ...

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 ...

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.

The stock market may be in a bubble that rivals the one seen during the dot-com boom. That's according to Torsten Sløk, the chief economist of Apollo Global Management, who said on Wednesday that the ...

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 ...

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