SEOUL : South Korea's financial regulator has imposed a fine of 11.88 billion won on U.S.-based Citadel Securities, saying it disturbed the local stock market with high-frequency algorithm trading.
The firm carried out such trading on an average of 1,422 stocks per day from Oct. 2017 to May 2018, totalling more than 500 billion won worth of trades, according to the statement.
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