The AI boom has made Jensen Huang, Nvidia’s founder and chief executive, one of the world’s richest men - Kent Nishimura/Bloomberg Nvidia has become the world’s first company to be worth $5tn (£3.7tn) despite growing fears of a bubble in artificial intelligence (AI) stocks. The microchip maker’s shares rose as much as 5.3pc at the start of trading on Wednesday, on hopes that Donald Trump will allow it to sell more products in China. This pushed Nvidia’s valuation past$5tn for the first time, having bec ...