Former President Donald Trump is riding a net worth roller coaster as his eponymous media company stock plummets, recovers and positions itself to plummet again, according to a new analysis. And like a roller coaster rider, Trump is strapped in too tightly to call it quits, even if the curves make him queasy. Forbes analyst Derek Saul Thursday published a thorough report tracking Trump Media’s various plummets, free falls and a recent surprise rise. “Trump’s net worth inched back above $4 billion Thursday for the first time since last week,” Saul writes, “as shares of the Truth Social parent s…