A 1% mistake costs $10 billion: Inside the impossible math of managing Elon Musk’s trillionaire SpaceX wealth FortuneSpaceX IPO: Elon Musk becomes world’s first trillionaire as SpaceX shares soar on stock market debut BBCShould trillionaires exist? The JournalThe 400-year-old lesson for SpaceX investors: Chart of the Day Yahoo FinanceHow much money did Elon Musk make in SpaceX’s stock market debut? The Guardian