Not long ago, Donald Trump’s social-media company, Truth Social, seemed like it was on life support. But when the company went public this week, its stock soared. WSJ’s Amrith Ramkumar explains how Truth Social’s valuation shot up despite its weak revenue and user numbers, and what it could mean for Trump’s financial and political future. Further Reading: - Truth Social Stock Price Surges on First Day of Trading, Increasing Trump’s Fortune  - Trump Can Post Smaller $175 Million Bond in Civil Fraud Case  - Dear Donald Trump, Here’s How to Manage Your Stock-Market Fortune  Further Listening: - Trump Needs $450 Million He Doesn’t Have  - Biden vs. Trump: The Rematch Nobody Wants  Learn more about your ad choices. Visit megaphone.fm/adchoices