Nvidia overtakes Apple as second most valuable public company Tech giant Nvidia has overtaken Apple to become the world’s second most valuable public company. The graphics chip maker’s market value reached $468.6bn (£362.5bn) on Tuesday, surpassing Apple’s $466.7bn (£361.5bn) valuation. This comes as Nvidia’s shares have surged by 128% this year, driven by strong demand for its gaming and data…