Topix’s largest-ever overhaul to cull hundreds of Japan stocks

What happened: Japan Exchange Group announced the largest-ever reshuffle of the Topix, shrinking the benchmark under tougher inclusion rules. Changes begin taking effect on Oct. 30. Key numbers: 683 companies earmarked for removal; 35 stocks to be added; changes start Oct. 30. Why it matters: The revamp is the second stage of a multiyear effort to make the Topix more investable, intensifying pressure on Japanese companies to boost their market appeal.

Japan Exchange Group announced the largest-ever reshuffle of the Topix, shrinking the benchmark under tougher inclusion rules. Changes begin taking effect on Oct. 30.

The revamp is the second stage of a multiyear effort to make the Topix more investable, intensifying pressure on Japanese companies to boost their market appeal.