There could be 3 changes for the NKY in September with sector balance determining the inclusions. Fast Retailing will be capped while Tokyo Electron is close to the 10% cap.
What is covered in the Full Insight:
Nikkei 225 Index Rebalance Preview
Nikkei 225 Index Methodology
Assets Tracking the Nikkei 225 Index
Potential Changes at the September Rebalance & Impact