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 is now holding an 7.3 percent share of the S&P 500 -the highest of any firm -- surpassing Apple and Microsoft with approximately 7 per cent and 6 percent respectively.

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

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.

The chip maker’s stock touched an intraday level needed to achieve a $4 trillion market cap, and set a new peak closing market-cap record

Nvidia reached another milestone in its rise to becoming one of the world's most important companies: the first publicly traded company to reach a market value of $4 trillion.

Interactive Brokers chief strategist Steve Sosnick characterized the current market as a combination of momentum and fear of missing out (or FOMO), as Nvidia (NVDA) reached a significant milestone while the Nasdaq Composite (COMP:IND) hit record highs.