The Japan Exchange Group, which runs the Tokyo Stock Exchange (TSE), announced on 7 August that the composition of the JPX-Nikkei Index 400 will change for the first time since the index was created in January of this year. Of the 400 stocks that comprise the index, 31 will be replaced. Names suffering from declining profitablity, such as Sony and Watami, will be removed, while new constituents, such as Panasonic and Calbee, will be added.