Japan megabank profits down as BoJ stimulus threatens bottom line

Japan's biggest banks tumbled in Tokyo share trading on Monday as a drop in their latest earnings was compounded by fears that the Bank of Japan's new stimulus measures would hit their bottom line. Shares in the trio -- Mitsubishi UFJ, Sumitomo Mitsui Financial Group and Mizuho Financial Group -- suffered a sell-off after the central bank on Friday unveiled plans to effectively charge lenders on some deposits. The negative interest rate policy is intended to increase lending to people and busine