Some of this analysis seems a bit lazy for the Economist.

Apple is in the "AI-related companies in the SP500" group? Microsoft too? Tesla too? Amazon too? But... if these companies' AI efforts fail, 95%+ of their revenues would be unaffected. So big stretch to paint them with that brush.

Nvidia, OK that one is obvious. Meta, Alphabet, OK.

But MOST of the companies listed in that chart are only "AI companies" in the sense that EVERY tech company building peripheral AI into their products is an AI company.

Case in point: if Apple stock goes 'on sale' as part of an AI-bubble sell-off, are you really deciding whether or not to buy based on their AI-ness?