TOKYO -- Warren Buffett has made a surprise investment of over $6 billion in five big Japanese trading houses, a move that could prompt other foreign investors to take another look at the Japanese stock market.
Buffett's Berkshire Hathaway revealed a long-term bet in acquiring a stake of slightly more than 5% in Japan's main trading houses, Itochu, Marubeni, Mitsubishi Corp., Mitsui & Co., and Sumitomo Corp.