News&Release

Nov/17/2025

Nikkei changes Name of Nikkei 225 Climate Change 1.5°C Target Index
Oct/03/2025

Release of the IOSCO Principles compliance report
May/14/2025

Treatment of the Partial Spin-off of Sony Group’s Financial Services Business
Oct/04/2024

Release of the IOSCO Principles compliance report
Mar/27/2024

New functions added to "Nikkei Indexes" website
Oct/18/2023

Release of the IOSCO Principles compliance report
Oct/02/2023

Changes to the Index Guidebook of Nikkei 225 derived indexes
Sep/15/2022

Real Time Calculation of Nikkei Climate 1.5°C Target Index

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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