Skip to content
Subscriber Only

Hong Kong Wants Stock Trading Limits to Combat Fat Fingers, Rogue Algorithms

Updated on

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 proposal to prevent individual equities from moving more than 10 percent 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 percent will be rejected, and a cooling-off period will begin.