US stock market retreated today after hitting record highs recently, with the S&P 500 slipping 0.53% to around 6,658 and the Nasdaq falling nearly 1% amid a selloff in Nvidia shares. The Dow Jones Industrial Average also dipped 0.

The S&P 500’s cyclically adjusted price-to-earnings (CAPE) ratio just hit 40 for the first time since 2000. The metric — popularized by Nobel-winning economist Robert Shiller — takes the S&P 500 and divides it by the average of its inflation-adjusted earnings over the last 10 years.

Brett Schafer has positions in Alphabet and Amazon. The Motley Fool has positions in and recommends Alphabet, Amazon, Apple, Microsoft, Nvidia, and Oracle. The Motley Fool recommends the following options: long January 2026 $395 calls on Microsoft and short January 2026 $405 calls on Microsoft. The Motley Fool has a disclosure policy.

NVIDIA presents superior revenue growth in key periods, enhanced profitability, and a comparatively lower valuation compared to Marvell Technology, indicating that investing in NVDA may be more advantageous. NVDA’s last 12 months revenue growth was 71.6%, whereas MRVL’s was 37.1%.

That's the key reason to seriously consider buying Nvidia shares before 2025 comes to a close.

U.S. stock slipped as Wall Street took a pause from its relentless rally. The S&P 500 fell 0.6% Tuesday. The Dow Jones Industrial Average dipped 0.2%, and the Nasdaq composite sank 0.9%.

Reddit stock is up more than 60% so far this year, and it outperformed Nvidia across the stretch. Reddit's valuation surged in conjunction with strong sales growth, driven by data licensing for AI applications.

Nvidia and AI research organization and ChatGPT developer OpenAI have created a new strategic partnership that could be a win-win for both companies. That helped Nvidia's stock surge as much as 5.3%. As of 2:10 p.m. ET, shares were 3.4% higher than Friday's closing price.