JPX Market Innovation & Research, Inc.(JPXI) provides various kinds of reference data such as TOPIX Information, Corporate action Information, JPX reference data, data for trading participants. The overview of each information is as follows.
URL: https://www.jpx.co.jp/english/markets/paid-info-equities/reference/index.html

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- TOPIX Information
Daily Detailed data for indices which JPXI calculate, including TOPIX, are provided.
URL: https://www.jpx.co.jp/english/markets/paid-info-equities/reference/01.html

- Corporate action Information
While the processing information for Corporate Action has a high risk of missing information or misinterpretation generally, JPXI provides Corporate action Information based on the latest disclosure information from domestic exchanges in Japan, that's how we ensure the accuracy, reliability, comprehensiveness and timeliness.
URL: https://www.jpx.co.jp/english/markets/paid-info-equities/listing/01.html

- JPX reference data
Master data, open/high/low/close data and open interest of end-of-week outstanding margin trading are provided.
URL: https://www.jpx.co.jp/english/markets/paid-info-equities/reference/03.html

- data for trading participants
the transaction data of each trading participant are provided only to them.
URL: https://www.jpx.co.jp/english/markets/paid-info-equities/reference/04.html