June 4 : Broadcom shares sank about 12 per cent in premarket trading on Thursday, a day after the company missed quarterly revenue views and disappointed investors' lofty expectations of stronger momentum from the AI boom. The chipmaker could lose more than $285 billion in market cap at the current price of $418.83, if losses hold. Broadcom vies with Nvidia, whose graphics processors remain the gold standard for AI workloads, underscoring intensifying competition at the top of the AI chip