Nihon Keizai Shimbun Inc., which controls and operates the 225-issue Nikkei Stock Average on the Tokyo Stock Exchange, said Friday it will replace six of the issues in the benchmark index later this month and in early October.

Industrial Bank of Japan, Dai-Ichi Kangyo Bank and Fuji Bank will be delisted Sept. 22 as they are to form a new holding company, Mizuho Holdings.

The three banks will be replaced in the index the same day by Bank of Yokohama, Toyo Trust & Banking and Shinko Securities.