The Nasdaq 100 index was on pace to erase more than $1 trillion in market value on Tuesday as technology heavyweights and chip stocks tumbled, while Elon Musk's SpaceX dropped below $2 trillion in market cap for the first time since its U.S. debut.
SpaceX, which is expected to join the Nasdaq 100, has lost more than $600 billion in market value in the past three sessions. It last had a market valuation of $1.95 trillion, if the day's losses hold.