ChatGPT maker’s $2.3trn spending spree is genius – or a house of cards AFRBroadcom stock pops 9% on OpenAI custom chip deal, adding to Nvidia and AMD agreements CNBCOpenAI and Broadcom sign deal to build up to 10 gigawatts of custom chips, Broadcom stock surges Yahoo FinanceOpenAI Is Working With SoftBank’s Arm on Broadcom AI Chip Effort The InformationBroadcom’s stock is soaring on a new OpenAI deal. Why Wall Street is so upbeat. MarketWatch