The S&P 500 index is right at record highs, with 28 components up at least 50% in 2025. Robinhood Markets HOOD, Seagate Technology STX, Western Digital WDC, Palantir Technologies PLTR, Newmont NEM, ...

But there’s a divergence within the group’s stock-market performance. Nvidia, Alphabet, Meta and Microsoft are considered well positioned for an AI world, and their shares are up between 21% and 33% ...