Warren Buffett's Berkshire Hathaway disclosed a $6 billion bet on five of Japan's biggest trading companies.<br />The news was released Sunday night in a press release.<br />The billionaire investor's company revealed that it owns just over 5% of Mitsubishi, Mitsui, Itochu, Marubeni, and Sumitomo.<br />Business Insider reports that all five firms rose between 4% and 10% on Monday.<br />Buffett said "I am delighted to have Berkshire Hathaway participate in the future of Japan and the five companies we have chosen for investment."
