Elon Musk loses $11 billion in a day, no longer world's richest

Tesla CEO Elon Musk lost $11 billion from his net worth in a day after shares of the automaker fell nearly 7% on Thursday to $653. Musk dropped to second on the Bloomberg Billionaires Index of the world's 500 richest people with $169-billion net worth. Amazon CEO Jeff Bezos reclaimed the top spot with a net worth of $178 billion.