“Stocks were expected to rebound quite strongly today after the presidential debate, so this system problem has poured cold water over that,” said Norihiro Fujito, chief investment strategist at Mitsubishi UFJ Morgan Stanley Securities.
“We still don’t know the cause, and I don’t think it’s a big problem. But it does highlight the importance of going digital.”
Share trading across Japan was suspended as smaller regional bourses in Nagoya, Fukuoka and Sapporo all use the TSE’s system, leaving the derivative-focused Osaka Exchange as the only market still running.
Nikkei futures, which trade in Osaka, rose 0.4 percent on Thursday, in line with a rise in US stocks overnight.
The TSE did not give a reason for the outage, but said it has no evidence of unauthorized access from outside the system. The Nikkei newspaper reported it was due to an unspecified hardware problem.
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7.11am update: Trump signs stopgap bill to avoid government shutdown
US President Donald Trump signed a stopgap funding bill on Thursday that would keep the federal government open through December 11, the White House said in a statement.
The legislation would maintain current funding levels for most programmes, avoiding a government shutdown in the middle of a pandemic just weeks ahead of the Nov. 3 U.S. presidential election.