Nvidia stock (NASDAQ: NVDA) has lost roughly $1 trillion in market capitalization since Donald Trump took office and things continue to get worse for the chipmaker.At press time, NVDA shares were changing hands at a price of$96.91, having marked a 15.15% loss on the 1-week chart that has brought year-to-date (YTD) losses up to 27.84%.NVDA stock price 1-week and year-to-date (YTD) charts. Source: Google FinanceThe latest move to the downside was caused by the White House’s H20 chip export ban. In the afterm ...