www.jpx.co.jp/english/equities/trading/relaunch/index.html

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Trading resumption through a system reboot | Japan Exchange Group

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Apr 7, 2026, 02:33 PM

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https://www.jpx.co.jp/english/equities/trading/relaunch/index.html

About this page

This page describes the Tokyo Stock Exchange's establishment of the Council for Recurrence Prevention Measures and Specialist Working Group following a system failure in the arrowhead cash equity trading system on October 1, 2020. The Council discussed rules and procedures for trading resumption after system-related suspensions. It confirmed that system reboots are acceptable for resuming trading. When trading resumes through a reboot, execution completion notices processed normally before suspension are treated as valid in principle.

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