NVIDIA Corporation (NASDAQ:NVDA) reached a $3 trillion valuation by market capitalization Wednesday, joining Apple, Inc. (NASDAQ:AAPL) and Microsoft Corporation (NASDAQ:MSFT) as the third company to ever achieve the milestone. The Details: Nvidia’s shares closed Wednesday up more than 5%, giving it a market cap of around $3 trillion. The chipmaker’s market cap surpassed Apple’s during Wednesday’s session, making it the second most valuable company in the U.S and the second-largest holding in the SPDR S&P 500 ETF Trust (NYSE:SPY). Nvidia shares have risen more than 6% this week amid continued m…