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Japan to tighten oversight of high-frequency trading

High-frequency trading accounts for a large chunk of trading on the Tokyo Stock Exchange.

TOKYO -- High-frequency stock traders may soon have to register in Japan, according to new rules being eyed by the country's financial watchdog.

High-frequency trading involves the use of artificial intelligence and other technologies designed to predict market movements, with powerful computers placing as many as 1,000 buy or sell orders per second. Such automated trading platforms are said to boost turnover but also increase volatility.

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