[12] The roots of JPX trace back to November 22, 2011, when TSE and OSE decided to merge into one, as a solution to slowing market conditions in Japan.

[15] The remainder of the merger was realized through a series of changes: In December 2014, JPX concluded a Letter of Interest (LOI) with Singapore Exchange.

[15] In the same month, JPX signed a joint venture agreement with Daiwa Institute of Research Ltd., the research arm of Daiwa Securities Group, and Myanma Economic Bank to establish Yangon Stock Exchange.

[15] On November 25, 2021, JPX launched a new subsidiary, JPX Market Innovation & Research, Inc. (JPXI), which would provide financial market data and price index services and system-related services to financial data vendors.

[17][18] The Osaka site would take over the entire operations of JPX in the event of a wide-ranging disaster in the National Capital Region.