What are the Trumpiest companies? One technique to reply the query is by firms within the president’s orbit, similar to Tesla, owned by Elon Musk, his billionaire adviser, or the eponymous Trump Media & Expertise Group. One other approach is to take a look at companies that noticed their costs surge the day after Donald Trump’s election victory, when the most important gainers included Palantir, a defence contractor; Apollo World Administration and Capital One, two monetary giants; and sure, Tesla.