On the Tokyo Stock Exchange on Tuesday afternoon stock prices increased significantly due to the fact that investors are buying shares of exporting companies.
The Nikkei was at the end of the day 14,311 points, with 169 more than the previous day.
Finance Minister Taro Aso said he did not want to adjust the high-frequency trading.
Aso told reporters Tuesday that the cause large swings in stock prices in Tokyo, which started from last week, in his opinion, is a super-high automated trading system.
He said that trading on the stock exchange should be carried out by people, not machines.
But Aso also said that he had no plans for a unilateral regulation of high-frequency trading, as some investors are likely to appreciate this method of trading.
Based on the application of computer technology trading system can automatically make a large number of orders for shares in a very short period of time, usually at the level of one thousandth of a second in order.