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Hong Kong to combat fat fingers, rogue algorithms with trading limits

Any order that causes a stock to climb or drop more than 10% will be rejected, and a cooling-off period will begin

Published Tue, Jun 9, 2015 · 09:50 PM
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Hong Kong

HONG Kong's markets regulator will back a plan to stop fat fingers and rogue algorithms from causing erroneous swings in the city's biggest stocks.

The Securities and Futures Commission will support Hong Kong Exchanges & Clearing Ltd's (HKEx) proposal to prevent individual equities from moving more than 10 per cent within a five-minute period. Under the planned change to HKEx's rules, any order that causes a stock to climb or drop more than 10 per cent will be rejected, and a cooling-off period will begin.

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