News&Release

Jul/24/2025

Changes to the Index Guidebook of the Nikkei Stock Average Regarding the Treatment of Spin-Offs
Jul/12/2023

Changes to the Index Guidebook and the Constituents Selection Rules of the Nikkei Stock Average
Jul/12/2023

Nikkei Stock Index 300 Guidebook (to be effective from October 2, 2023)
Jun/15/2020

Changes to the Constituents Selection Rules of the Nikkei Stock Average

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