Ron Baron says Tesla’s valuation can hit $4 trillion, but ‘SpaceX has a chance to be even bigger’

When Ron Baron was starting an investment business, he got some advice from Steve Wynn. The casino magnate told Baron to name his investment company after himself as a way to show clients and customers that he promised to stand behind it. Some four decades later, Baron Capital has made its most important investment in Elon Musk, Inc. 

Baron invested $570 million in Tesla TSLA, mostly between 2014 and 2016, which was about 2% of his assets under management at the time. Today, after selling some shares, Tesla represents about…