Lexicon

Asymmetric slippage occurs when brokers handle trade orders differently based on the market's movement direction relative to the trader's intended trade. It involves the practice of brokers passing on the negative price movements to traders, while not providing them the benefit of positive price movements. Essentially, if the market moves against the trader, the slippage is fully realized, but if the market moves in the trader's favor, the broker may opt to execute the trade at the original quoted price, thus capturing the positive slippage for itself. This practice prevents traders from capitalizing on beneficial price movements and constitutes a significant ethical and legal issue within trading and brokerage services. It is considered illegal and a violation of fair trading practices under both U.S. and European regulations. Brokers, especially those not under stringent regulatory oversight, might be more prone to engaging in this unfair practice, disadvantaging traders by limiting their potential gains while exposing them to fuller losses.