It’s hard to talk about the stock market without also talking about AI. By now, investors know well that only a handful of companies have a gigantic footprint in market-cap-weighted indexes and that those stocks’ returns are behind the market’s performance. Heavy exposure to Nvidia (up 38% year to date), Microsoft (22%), Alphabet (45%), Palantir (131%) and other names near the top of the S&P 500 has helped goose returns to 15% this year, and some ETFs that focus on AI and technology have done much better. ...