AI giant Nvidia’s stock plunged by 8.5%, leaving Apple as the only $3 trillion company, according to data from Google Finance, which also shows that Nvidia had $273 billion erased from its market cap yesterday after reporting some pretty impressive earnings on Wednesday.

An upbeat tone is seeping into markets as investors dig into Nvidia's quarterly earnings beat, which signaled plenty of scope for growth.

A look at the day ahead in European and global markets from Kevin Buckland It could be taken as testament to the market's laser focus on the health of the U.S. economy - and the threat from Donald Trump's trade wars - that even the financial report card from AI poster child and market bellwether Nvidia came and went with barely a ripple.