3 Trillion-Dollar Stocks to Buy Now AndreyKrav / iStock Editorial via Getty Images The U.S. stock market boasts a combined market cap of $50.8 trillion, as of early 2024. But the wealth is concentrated, with a select few names earning the right to be called trillion-dollar stocks. Perhaps not too surprisingly, all of the companies that qualify also share the title of tech titans (except for Saudi Aramco).  The following trio of multi-trillion-dollar stocks represents companies whose products have become e ...