Warren Buffett stake sends Chinese battery maker's shares 42% higher in Hon

Shares of Chinese battery maker and 'green' car maker BYB Company Limited soared 42 percent today in Hong Kong trading, after this weekend's announcement that Warren Buffett is investing in the company. BYD closed at HK$11.90 today (Monday), up from Friday's close of HK $8.40 but still well below the stock's October high of just over HK$20. (The stock does not trade in the United States.)