Selling was seen across almost all sectors, with only one of the Tokyo Stock Exchange’s 33 industry sub-indexes closing higher and just 16 stocks up on the benchmark Nikkei share average.
The Nikkei settled down 1.97 per cent at 29,100.38, its worst since March 24, while the broader Topix dropped 1.55 per cent to 1,926.25 in its biggest slide in four weeks.
“It’s just like the decline is bringing another sell-off today,” said Shoichi Arisawa, general manager of the investment research department at IwaiCosmo Securities.
“There is a concern about virus resurgence not only in Japan but also in other countries. Investors are becoming cautious about an economic reopening, particularly since many Japanese companies are sensitive to the global economy.”
Tokyo and Osaka may slide back into states of emergency due to a resurgence in COVID-19 cases. Japan this month put these prefectures as well as others under “quasi-states of emergency” but those measures have done little to reverse the trend so far.
Index heavyweights Fast Retailing, known for its Uniqlo clothing brand, fell 2.17 per cent, while SoftBank Group lost 1.84 per cent.
Semiconductor-related stocks tracked their U.S. peers lower, with Tokyo Electron falling 2.3 per cent, Advantest dropping 3.2 per cent and Murata Manufacturing losing 1.58 per cent.
The top percentage losers on the Nikkei index were Marui Group Co Ltd, down 5.82 per cent, followed by Dentsu Group Inc , losing 4.46 per cent, and Daikin Industries Ltd, down by 4.28 per cent.
The biggest percentage gainers in the index were Kawasaki Kisen Kaisha Ltd, up 2.19 per cent, followed by Mitsui OSK Lines Ltd, gaining 1.66 per cent, and Oji Holdings Corp , up by 1.4 per cent.
The volume of shares traded on the Tokyo Stock Exchange’s main board was 1.09 billion, compared with the average of 1.29 billion in the past 30 days.