Shares of Trump Media shot up by more than 25% on Friday, minutes after majority owner Donald Trump said he is not selling his stake. Trump said that Truth Social, the Twitter-like social media platform owned by Trump Media, is "great for me," adding that his stake is still worth more than $1 billion. I'm not going to sell my shares," he said. Analysts have said that investing in Trump Media has become a way for Trump's fans to support him or bet on his political fortunes. The company fell to its post-merger low point this week amid concerns that Trump might start selling his shares once he is free to do so.

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Persons: Donald Trump, Trump, I'm, it's, — CNBC's Josephine Rozzelle Organizations: Republican, Trump National Golf Club Los, Trump Media, Nasdaq, SEC Locations: Rancho Palos Verdes , California, California