Hitachi Ltd fell 7.30% after the Nikkei newspaper reported the company will buy a US software developer for $9.6 billion. Hitachi confirmed the acquisition after the closing bell.
The Nikkei 225 Index rose 1.18% to 30,439.54 by 01:44 GMT as financials and real estate shares surged. At one point the Nikkei rose to 30,487.65, the highest since August 1990.