Nvidia leads market cap race in 2026, but investors predict Alphabet may overtake it by year-end.

As of May 2026, Nvidia holds the highest market capitalization at $5.29 trillion, followed by Alphabet at $4.81 trillion. Despite Nvidia's lead, a Benzinga poll shows 46% of viewers believe Alphabet will become the most valuable company by the end of 2026, with 70% expecting it to briefly surpass Nvidia at some point. However, prediction markets favor Nvidia with a 59% chance to remain on top. The competition between these tech giants will continue to shape market dynamics through the rest of the year.