10 biggest billionaire winners (and losers) of 2014 By: MarketWatch December 16, 2014 at 18:03 PM EST The world’s richest billionaires — even those who lost as much as $7 billion over the last year — still appear to be doing just fine. Read More >> Related Stocks: Alibaba Group Holding Ltd Amazon.com Berkshire Hathaway Berkshire Hathaway Facebook Las Vegas Sands Microsoft