What are the Trumpiest companies? One option to reply the query is by firms within the president’s orbit, reminiscent of Tesla, owned by Elon Musk, his billionaire adviser, or the eponymous Trump Media & Know-how Group. One other means is to take a look at companies that noticed their costs surge the day after Donald Trump’s election victory, when the largest gainers included Palantir, a defence contractor; Apollo International Administration and Capital One, two monetary giants; and sure, Tesla.