News Release

Nov. 27, 2025 JPXTSE Proof of Concept on the Long-Term Applicability of Cloud Technology to cash equity trading system

With the support of Amazon Web Services (AWS) and Fujitsu Limited (Fujitsu), Tokyo Stock Exchange, Inc. (TSE) is conducting a proof of concept (PoC) to explore the long-term applicability of cloud technology to its cash equity trading system.

“arrowhead” is the cash equity trading system jointly developed by TSE and Fujitsu that combined low latency, high reliability, and scalability of the highest global standard. Through continuous evolution after the launch of its first system in 2010, arrowhead 4.0 went live in order to further improve convenience for market users, global competitiveness, and resilience on November 5th, 2024.

JPX Group has built J-WS, which is JPX's common infrastructure platform, on AWS. This has allowed it to stably operate the services of the JPX Group’s data/digital businesses. In arrowhead 4.0, AWS is utilized as the infrastructure for accumulating and analyzing system resources and transaction logs.

Through this PoC, TSE will explore the applicability of cloud technology to arrowhead’s critical functions including trading from a long-term perspective and expect the insights to contribute to future considerations of the cash equity trading system.