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Jun. 12, 2025 JPXI Revision to Guidebook for the JPX-Nikkei Index 400 and the JPX-Nikkei Mid and Small Cap Index

JPX Market Innovation & Research, Inc. and Nikkei Inc. have carefully considered revisions to the guidebook for the JPX-Nikkei Index 400 and the JPX-Nikkei Mid and Small Cap Index, taking into account feedback from market users gathered through the Index Consultation process. As a result of these deliberations, JPX Market Innovation & Research, Inc. and Nikkei Inc. have decided to revise the criteria for appointing female officers at “Appointment of independent directors and female officers,” which factors into qualitative scores, as follows.