News&Release

Dec/15/2025

Change to the Nikkei 300 constituents
Oct/27/2025

Change to the Nikkei 300 constituents
Sep/16/2025

Annual Review for Nikkei 300
Jul/24/2025

Changes to the Index Guidebook of the Nikkei Stock Average Regarding the Treatment of Spin-Offs
Jun/20/2025

Change to the Nikkei 300 constituents
Jun/13/2025

Change to the Nikkei 300 constituents
May/14/2025

Treatment of the Partial Spin-off of Sony Group’s Financial Services Business

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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Provision of index data

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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