Trump made his stock market debut today.
With almost zero ($3.5 million) revenue and a heavily loss-making media market, his ticker code is DJT (Donald J. Trump) and he is up just 40%, making Trump's 69% stake worth just $5.6 billion. He is not allowed to sell for 6 months in principle, but can get a waiver from the company's chairman.
He is a clever con man, he is selling the chance of his presidency in advance to those who believe in him and to those who don't, but he is confident that there will be others who believe even more, or that during his presidency his platform will be so popular that he can make a profit. It has already made him rich, on paper. The power of lunacy should never be underestimated.