Nvidia (NVDA.US) closed up another 2.8% on Tuesday to US$139.91, giving it a market cap of US$3.43 trillion and making it the world's second-most valuable listed company after Apple (AAPL.US) .Apple ended up 0.7% at US$223.45, with a market cap of about US$3.4 trillion. Nvidia had previously surpassed Apple in June, and its stock price subsequently declined over the summer. Microsoft (MSFT.US) ranked third, with a market cap of nearly US$3.1 trillion.Related NewsTrump Appoints Elon Musk, Vivek Ramaswamy to Lead Govt Efficiency DepartmentNvidia shares have soared 1.8 times year to date.(Real-time Streaming US Stocks Quote; Except All OTC quotes are at least 15 minutes delayed.)