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.

Therefore, it’s safe to conclude that NVIDIA is a better stock than Palantir in the second half. Palantir stock only suits aggressive investors. But those seeking stable returns should consider NVIDIA. At the moment, both stocks possess a Zacks Rank #3 (Hold). You can see the complete list of today’s Zacks Rank #1 (Strong Buy) stocks here .