JPX Monthly Headlines
JPX group companies undertake various initiatives and disseminate information with the aim of providing the most attractive markets to all users.
Every month, we showcase the highlights of these efforts in short and concise summaries just for you.
May
Apr. 30: Publication of “Measures and Points in Preparation for Making IR System Development Mandatory”
Tokyo Stock Exchange, Inc. (TSE) is scheduled to make IR system development mandatory so that listed companies can proceed with the development of an information disclosure system (IR system) for building relationships with shareholders and investors.
In preparation for the implementation of mandatory IR system development (scheduled for July 2025), TSE has compiled “Measures and Points in Preparation for Making IR System Development Mandatory” to assist listed companies in reviewing and developing their IR systems and updating their corporate governance reports. This document was published on April 30.
May 8: Publication of Constituents and Methodology for JPX-Nikkei Index Human Capital 100
From July 22 of this year, JPX Market Innovation & Research, Inc. and Nikkei, Inc. plan to start calculating their jointly developed JPX-Nikkei Index Human Capital 100, a new stock price index that focuses on human capital.
Stocks are selected using a Comprehensive Human Capital Score, which is calculated based on the ESG Performance Score Core – Dimension Human Capital Score provided by ESG Book.
Please see the news release dated May 8 for more details on constituents and methodology.
May 12: Index Consultation on Revision to Guidebooks Due to Listing Rule Changes for Spin-Offs
JPX Market Innovation & Research, Inc. (JPXI) has implemented Index Consultation on the revisions to Guidebooks for TOPIX and other equity indices due to listing rule changes for spin-offs. The revisions are planned to be made in September this year. JPXI will continue in its endeavors to improve convenience for market users.
As previously announced, revisions regarding the initial listing date for spin-offs (enabling the shares of the spun-off company to be listed from the ex-rights date of the company carrying out the spin-off) will be implemented on September 16.
May 20: Collaboration to Align FTSE Blossom Japan Index Series with TOPIX
JPX Market Innovation & Research, Inc. and FTSE Russell have agreed to collaborate to align the FTSE Blossom Japan Index and the FTSE Blossom Japan Sector Relative Index with the Tokyo Stock Price Index (TOPIX).
It is hoped that incorporating TOPIX constituent stock information into the widely accepted sustainable indices of the FTSE Blossom Japan Index series will lead to more investment in indices focusing on corporate sustainability, and will facilitate ESG integration into the Japanese market
The collaboration is due to start in December 2025.
May 26: Shanghai Natural Rubber Futures Listing Ceremony Held and Wednesday Expiry Contracts for Nikkei 225 mini Options Launched
On May 26, 2025, Osaka Exchange, Inc (OSE) began trading Shanghai Natural Rubber Futures and held a listing ceremony in the atrium on the first floor of the Osaka Securities Exchange Building.
This product is a cash-settled futures contract based on the price of natural rubber futures listed on the Shanghai Futures Exchange. It enables domestic and international rubber-related businesses to hedge against price fluctuations of natural rubber inventories held in the People's Republic of China, and is expected to contribute to improving the liquidity of existing rubber futures at our exchange through arbitrage transactions addressing price differences between natural rubber in the People's Republic of China and Japan.
May 26 also saw the launch of Wednesday Expiry Contracts for Nikkei 225 mini Options. They mature on Wednesday of each week and aim to encourage more index options trading and offer enhanced convenience to investors.
Moving forward, OSE will strive to operate a highly convenient market, by continuing to provide investors both domestically and internationally with opportunities and means for risk hedging.