TOKYO — Trading on the Tokyo Stock Exchange was suspended Thursday because of a problem in the system for relaying market information. Most other Asian markets were closed for national holidays.
The Tokyo Stock Exchange said that all trading was stopped, including the benchmark Nikkei 225
because of the problem, and will not resume for the rest of the day. It was unclear when it would be resolved and the system would be operating again.
Elsewhere, Australia’s S&P/ASX 200
gained 1.5% in early trading. Trading was closed in South Korea and China for national holidays. Indexes in Singapore
Details on the Tokyo trading problems were not immediately available. Japan’s nationally circulated Asahi newspaper, without citing sources, said the cause was likely a mechanical failure.
The Tokyo Stock Exchange is the world’s third largest bourse after the New York Stock Exchange and Nasdaq, with market capitalization of nearly $6 trillion.
Previous outages occurred when the “arrowhead” system created by Fujitsu to handle its electronic trading 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.
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.
On Wall Street, prospects for additional support from Congress for the economy helped drive the day’s trading, as they have for weeks. The S&P 500 shot to a gain of as much as 1.7% after Treasury Secretary Steven Mnuchin spoke positively on CNBC before his afternoon talks with