News&Release

Jul/24/2025

Changes to the Index Guidebook of the Nikkei Stock Average Regarding the Treatment of Spin-Offs
Mar/03/2023

Deletion from Nikkei Climate 1.5°C Target Index
Oct/17/2022

Changes in Nikkei Climate 1.5°C Target Index constituents
May/16/2022

Nikkei to launch "Nikkei 225 Climate Change 1.5C Target Index" developed in collaboration with Wilshire

Guide to make better use of the Nikkei Indexes

The most trusted gauge of the stock markets

Nikkei Inc. has developed and calculated its own indexes from various perspective, looking at changes in society and markets. Nikkei Stock Average, the premier and flagship index of Japanese stocks, and other Nikkei Indexes are widely used globally as representative indicators of the Japanese equity market, and financial products linked to the Nikkei Indexes are traded around the world.

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This section provides information on the procedures for using basic data in business use such as index constituents stock prices, dividends and weights, which are indispensable for calculating the Nikkei Stock Average, for business use.

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