Nvidia shares briefly touch a record high amid a blockbuster 212% rally this year that's been fueled by A.I. buzz

It's by far the biggest gainer in the S&P 500 Index.

Nvidia shares briefly touch a record high amid a blockbuster 212% rally this year that's been fueled by A.I. buzz
It's by far the biggest gainer in the S&P 500 Index. Read More