US stock markets opened higher but have quickly been hit by heavy profit taking. The S&P 500 is now down 45 points, or 0.7%.
SPX daily
The big drag is coming from Nvidia, which was trading higher by 3% in the pre-market and opened at a record high following a keynote speech from CEO Jensen Huang yesterday.
Heavy profit-taking took place at the open and shares are now down 5.5%.
NVDA daily
Shares of Tesla are also struggling in a 4.4% fall after a downgrade.