JPX-Nikkei400 / JPX-Nikkei Mid Small
Aim of the Index
The new index will be composed of companies with high appeal for investors, which meet requirements of global investment standards, such as efficient use of capital and investor-focused management perspectives. The new index will promote the appeal of Japanese corporations domestically and abroad, while encouraging continued improvement of corporate value, thereby aiming to revitalize the Japanese stock market.
Main Points of Index
| Index Name | JPX-Nikkei Index 400 Abbrev.: JPX-Nikkei 400 |
| Index Provider | JPX Market Innovation & Research, Inc., and Nikkei Inc. |
| No. of Constituents | 400 issues |
| All the eligible constituents | Common stocks whose main market is the TSE Prime Market, Standard Market, Growth Market |
| Constituent Selection/ Review Method |
Constituent selection and review will be conducted as follows. [Selection Criteria] Constituents are selected according to the following process and criteria.
[Periodic Review] A constituent review will be conducted on the last business day of August each year with the last business day of June as the base date. (The result of the constituent review will be announced on the 5th business day of August) Even though the number of constituents in JPX-Nikkei 400 may decrease between periodic reviews due to the removal of constituents by means other than the periodic review, no supplementary inclusions are made to meet the intended number of constituents (inclusions to meet the intended number of constituents are only made during the periodic review in August). |
| Calculation Method | Free-float adjusted market capitalization-weighted (with 1.5% cap) |
| Start of Calculation | Jan. 6, 2014 Real-time dissemination (per sec) of the index via Tokyo Stock Exchange’s Market Information System |
| Base Date/Base Point | Aug. 30, 2013 / 10,000 points |
JPX-Nikkei Index 400 Chart
Constituents List
| Constituents (As of March 31, 2025) |  |
|---|
End of month constituents data for the index will be updated normally after 4:20 pm (Japan time) on the second business day of each month.
In time of periodic review, end of month constituents data for the index will be updated normally after 9:00 am(Japan time) on the last business day of each month.
Constituents List with Weight
| Constituents List with Weight | Nikkei Indexes |
Alternative information on "Free Float Weight of JPX-Nikkei Index 400" is available on "JPX Data Cloud".
Please refer to "End of month Master Of Index" from the following link.
Contact
JPX Market Innovation & Research, Inc.
E-mail:index@jpx.co.jp
Other Referential Data
| Factsheet | Nikkei Indexes |
| Data regarding Periodic Review | |
Calculation Method
Currency Hedged Index
(Note)
(*) As for the index values and factsheets of JPX-Nikkei 400 Currency Hedged Index, please refer to the following website on "Nikkei Indexes"(NikkeiInc.).
Leveraged and Inverse Index
(Note)
(*) As for the index values and factsheets of JPX-Nikkei 400 Leveraged and Inverse Index, please refer to the following website on "Nikkei Indexes"(NikkeiInc.).