The shares of Japan's five major trading houses rose before Buffett increased his stake

[prior to the rise in the share price of Japan's five major trading companies, Buffett increased his stake]-- the share prices of Japan's five major companies rose, Itochu rose 2.4%, Marubeni rose 2.4%, Mitsubishi rose 3.2%, Mitsui products rose 3.7%, and Sumitomo rose 2.8%. Previously, Berkshire Hathaway planned to increase its stake in the five major companies to a maximum of 9.9%.