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 Wall Street’s jitters.

It's Just Technology
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 Wall Street’s jitters.