News Release
Dec. 12, 2025 JPXI JPXI to Launch TOPIX 100 Net Total Return Index
JPX Market Innovation & Research, Inc. (JPXI) will start calculating the TOPIX 100 Net Total Return Index from January 26, 2026, in addition to the price return and total return indices.
Overview
| Index Name | TOPIX 100 Net Total Return Index |
| Calculation Method | Free-float adjusted market capitalization-weighted |
| Base Date / Base Value | January 16, 2026 (Fri.) / 1,000 points |
| Start of Calculation | January 26, 2026 (Mon.) |
| Calculation Interval | The daily closing value of the index is calculated. |
| Dissemination of Index Data | Index data is provided via Index Data Service (paid service). |
Use of Index
A licensing agreement with JPXI is required when using this index to structure or offer financial products or when providing it to third parties. For inquiries regarding licensing agreements, please contact the Client Services Department (information provided below).
| TSE Index Guidebook (TOPIX New Index Series - Size-based TOPIX Sub-Indices) |  |
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Contact (Regarding the outline of this index)
JPX Market Innovation & Research, Inc. Index Business Department
E-mail : index@jpx.co.jp
Contact (Regarding licensing related to this index)
JPX Market Innovation & Research, Inc. Client Services Department
E-mail : index-license@jpx.co.jp