The Kelly Criterion is a well-known trading strategy in the foreign exchange (forex) market. It involves assessing the risks associated with each trade and calculating a bet size based on the risk, with the aim of maximizing profits while managing risk. It is favored by traders looking for a strategy to maximize short-term gains while minimizing short-term losses. The Kelly Criterion is unique in its ability to assess the risk in each trade and adjust the bet size accordingly. This strategy is more successful in markets with greater liquidity and lower spreads.