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Outage freezes Tokyo Stock Exchange, world's 3rd largest

3 weeks 5 days 4 hours ago Thursday, October 01 2020 Oct 1, 2020 October 01, 2020 5:31 AM October 01, 2020 in News
Source: Associated Press
A scene from “Daihakkai,” a ceremony from the first trading day of the year, featuring employees and models in kimono, at the Tokyo Stock Market on Jan. 6, 2020. Photo: Japan Times/YouTube

TOKYO (AP) — Tokyo Stock Exchange officials said they were working to get trading back to normal by Friday after the bourse halted trading for the day due to what they said was a hardware and systems malfunction of its electronic trading system.

There was no indication that the outage at the world’s third-largest exchange resulted from hacking or other cybersecurity breaches.

“We are extremely sorry for the troubles we have caused,” exchange President and Chief Executive Koichiro Miyahara told reporters.

Miyahara and other exchange officials said a computer hardware device they called “machine one” failed and the backup “machine two” didn’t kick in, so stock price information was not being relayed properly.

The officials characterized the problem as a memory malfunction.

They said that rebooting the system during a trading session would have caused confusion for investors and other market participants.

The Japan Exchange Group is the world’s third largest bourse after the New York Stock Exchange and Nasdaq, with market capitalization of nearly $6 trillion.

The outage Thursday also affected other, smaller stock exchanges in Japan.

The malfunction of basic hardware drew attention to vulnerabilities in the country’s digital systems. Newly appointed Prime Minister Yoshihide Suga has made upgrading such infrastructure a priority, viewing it as critical to Japan’s competitiveness.

Previous outages occurred when the huge “arrowhead” system created by Fujitsu to handle its electronic trading, which officials said involves some 350 servers, became overwhelmed with too many orders at one time.

That’s what happened on Oct. 9, 2018, according to a release on the TSE’s website. But during that disruption, some backup systems for trading continued to function as was the case in earlier outages.

The exchange promised to investigate, conduct malfunction tests and change the system to ensure that a flood of orders would not cause the entire system to stop working. Several top executives of the exchange were penalized.

Despite such occasional disruptions, Miyahara said the motto of the exchange was “never stop.”

Foreigners account for about 70% of all brokerage trading in the Tokyo exchange, both in terms of value and volume, so news of the outage left investors both in Japan and overseas wondering what happened.

“I think it is very regrettable that investors are limited in their trading opportunities because they cannot trade on the exchanges,” said Katsunobu Kato, the chief cabinet secretary.

He said the Financial Services Agency had instructed the Japan Exchange Group and Tokyo Stock Exchange to investigate the cause of the outage and fix it.

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