NVIDIA SoftBank had owned around 5% of Nvidia (NVDA.O), opens new tab until it sold the stake in 2019, before ChatGPT generated a surge in AI interest at the end of 2022. It has been building up its stake again and held Nvidia shares worth around $4.8 billion as of the end of June this year, according to an SEC filing. Reporting by Anton Bridge and Miyoung Kim; Editing by Kate Mayberry Our Standards: The Thomson Reuters Trust Principles., opens new tab