Artificial intelligence (AI) stocks have soared in recent years, and though that's fantastic, when a stock reaches a particularly high level, it may have difficulty climbing even higher. That's why companies such as Nvidia and Broadcom last year each launched a stock split, a move to bring the price of their shares down to Earth.

Shares of Palantir Technologies Inc. PLTR, which sells a well-liked artificial intelligence (AI)-powered software platform, have surged 74.7% so far this year, outperforming the leading AI chip maker,