The World's Best-Performing Stock Just Crashed After Soaring 3,800%
A man walks past an electronic monitor displaying graphs of various market indices outside a securities firm in Tokyo, Japan. (Photographer: Yuriko Nakao/Bloomberg)

The World's Best-Performing Stock Just Crashed After Soaring 3,800%

(Bloomberg) -- MSCI Inc. scrapped plans to add a high-flying Hong Kong stock to its indexes because of concerns about investability, a rare reversal that sent the stock plunging 98%.
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