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<p>There are algorithms that search the market for certain abnormalities, e.g. hidden stops, and there are algorithms that trigger certain trading strategies. In the event of a breakout, market orders are shot into the market and at the same time the limit orders that would hold up the own market orders are withdrawn. In order not to have to program new algorithms every day, the internal processes within the algorithms remain. For this, the big players in the market create invisible price zones that are simply shifted depending on the situation. This means that the algorithms are only shifted to …</p>