The Tokyo Stock Exchange (TSE) and Osaka Securities Exchange (OSE) were both unaffected operationally on 11 March following an earthquake.
The earthquake measured 8.9 on the Richter scale and hit the Miyagi prefecture, 250 miles from Tokyo at 14.46 JST (05.46 GMT).
The OSE issued a statement saying that, “A huge earthquake occurred off Miyagi prefecture, but there’s no impact to OSE market as of 15:20” and later confirmed that the evening session would be started as usual.
A spokesperson for the TSE said the equity market was open all-day and closed normally, and that the derivatives market was at present opening for the evening session and would also close normally. “Both markets will open for business on Monday as usual,” he added.
The Nikkei 225 index closed down 179.95 points – or lower 1.72% – at the end of close of trading on Friday.