Which AI Stock Is the Best Buy Today: Nvidia, Alphabet, or Palantir? | The Motley Fool

Which AI Stock Is the Best Buy Today: Nvidia, Alphabet, or Palantir? | The Motley Fool

By Daniel Sparks
Publication Date: 2026-04-20 22:30:00

Investors have flocked to artificial intelligence (AI) stocks over the past couple of years. And it’s easy to see why. The growth coming from the sector’s top players is staggering.

But separating a good business from an attractive stock is where investing gets tricky. When comparing three of the biggest AI winners — Nvidia (NVDA +0.19%), Alphabet (GOOGL 1.26%)(GOOG 1.18%), and Palantir Technologies (PLTR 0.34%) — one arguably offers a superior balance of business quality and valuation.

Image source: Getty Images.

Nvidia’s hardware dominance

It is hard to find any flaw in Nvidia’s underlying execution. In its fiscal fourth quarter of 2026 (the period ended Jan. 25, 2026), the AI chipmaker reported revenue of $68.1 billion, which was up a striking 73% year over year.

And its data center segment continues to power the story. Data center revenue hit $62.3 billion for the quarter, up 75% year over year.

Nvidia Stock Quote

Today’s Change

(0.19%) $0.39

Current Price

$202.07

“Agentic and physical AI applications built on increasingly smarter and multimodal models are beginning to drive our financial performance,” explained Nvidia chief financial officer Colette Kress in the company’s fiscal fourth-quarter earnings call.

But Nvidia trades at a price-to-earnings ratio of about 41 as of this writing. While this isn’t necessarily egregious for a hyper-growth…