I'm talking about Nvidia (NVDA) , of course, and the question is: Can it help power the S&P 500 to another record high? The answer is yes. In premarket trading shares of the AI-chip giant are trading up nearly 1%.

It's clear that all three of these stocks make interesting AI buys, but to decide where to put our money right now, it's a good idea to take a look at valuation. Here, Nvidia trades at a very reasonable level but still is the priciest of the bunch.

Wall Street looked to keep momentum from a tech-fueled rally that saw Nvidia leap to become the world's first $4 trillion public company.

NVIDIA’s market value broke a record on Wednesday after dipping in spring amid political uncertainty and chip restrictions.

Nvidia ( NVDA 1.80%) remains one of the best artificial intelligence (AI) stocks on the market. But with the chipmaker now trading at a price-to-sales multiple of 26.4, many investors may wonder if shares have gotten too expensive to buy. Don't be fooled: Nvidia stock is still reasonably priced.

Wall Street looked to keep momentum from a tech-fueled rally that saw Nvidia leap to become the world's first $4 trillion public company.

Bloomberg journalists discuss today's biggest winners and losers in the stock market. Listen for analysis on the companies making news on Wall Street.