Elon Musk is now a trillionaire. The Tesla CEO became the world's first trillionaire on Friday, June 12, as SpaceX opened on the Nasdaq at $150 a share and rose, with his stake in the company reaching $819 billion, according to an analysis by NBC News. The outlet additionally noted that Musk holds $375 billion stake in Tesla, totaling his net worth from both companies to at least $1.2 trillion as of noon eastern time. As the world's first trillionaire, his net worth exceeds the national GDPs of Taiwan, Sweden, Belgium, and Argentina.