Leading the swing were Apple and Nvidia, both Silicon Valley giants with significant dealings in China, as shares of Apple went from as much as a 4% morning gain to a 2% daily loss by late afternoon, and Nvidia stock turned what was as much as a 3% gain to a 3% daily drop.

Global investors staged a broad selloff in technology stocks on Monday, wiping out a staggering $593B in market value from Nvidia — an unprecedented one-day loss for any firm on Wall Street.