US stocks gave up early gains to end lower after economic and rate uncertainty topple strong earnings from AI darling Nvidia and retail giant Walmart.

But fears on Wall Street persist, investment analysts said, despite Mr Huang's reassurance and blockbuster results from the chip-maker, which is seen as a bellwether for the AI boom. Those fears have picked up this month. Speaking to the BBC this month, Alphabet chief executive Sundar Pichai warned of some "irrationality" in the current AI boom.

Chip maker Nvidia’s strong earnings and rock-solid guidance ease worries about an artificial-intelligence bubble.

Tech stocks are falling for a fourth consecutive session as investors brace for Nvidia's earnings report. Bitcoin dropped and bond yields tumbled.

Stocks closed markedly lower on Tuesday as fears of a bubble in artificial intelligence technology hammered markets for a fourth consecutive trading day.

Large-cap stocks are known for their staying power and ability to weather market storms better than smaller competitors. However, their sheer size makes it more challenging to maintain high growth rates as they’ve already captured significant portions of their markets.

Tech stocks were getting snapped up early Thursday by investors after Nvidia Corp's earnings gave the AI trade its groove back. Nvidia shares were up more than 4% in early trade, while the S&P 500's tech sector was 2.

Hardware firms have been the big AI winners, but Goldman flags a handful of stocks that could be the top beneficiaries of AI-fueled productivity gains.

Before the trading day starts we bring you a digest of the key news and events that are likely to move markets. Today we look at:

An early stock-market rally on Thursday has given way to broad-based selling as doubts about the artificial-intelligence trade re-emerged following the latest batch of earnings from Nvidia.