Nvidia suffers record $279 billion loss in market value as Wall St drops

 Shares of AI heavyweight Nvidia (NVDA.O), opens new tab tumbled 9.5% on Tuesday in the deepest ever single-day decline in market value for a U.S. company, as investors softened their optimism about artificial intelligence in a broad market selloff following tepid economic data.

Nvidia lost $279 billion in market capitalization, a major indication that investors are becoming more cautious about emerging AI technology that has fueled much of this year's stock market gains.