The world's richest person has faced problems at Tesla, SpaceX and X, ranging from a tanking Tesla valuation to an X advertiser exodus. Tesla's stock slide has erased about $188 billion from its valuation this year, according to Business Insider's calculations. The stock closed at just under $192, leaving it worth just over $600 billion at the close of trading Friday. Before you start feeling too sorry for Musk, though, he's still worth $208 billion. Justin Sullivan/Getty ImagesDelaware pay rulingTo add insult to injury, a Delaware judge also ruled against Musk's $55 billion Tesla pay package last month.

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