A Chinese car manufacturer that billionaire Warren Buffet has a significant stake in suffered a mysterious plunge in share value. Shares in  BYD Co Ltd posted their biggest-ever single-day drop in Hong Kong on Thursday, wiping $1.2 billion from the Chinese car maker's market value and prompting it to hold emergency analyst calls. Various rumours swirled in the market but analysts said it was unclear what exactly drove the shares to their lowest close since June 2013. Shares of BYD, best known for making electric vehicles and 9.1 per cent owned by Buffett's Berkshire Hathaway Energy Holdings Co, ended down 28.8 per cent at HK$25.05 in record trading volume, after falling up to 47 per cent in afternoon trade.
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Electric vehicle manufacturer saw $1.2bn wiped off its value
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Market analysts are baffled about the cataclysmic share drop
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Another Chinese car manufacturer saw value plunge over Russia fears
Around 252.7m @placeholder Hong Kong shares changed hands, more than 50 times the 90-day average.