Abstract: An apparatus for calculating and executing currency exchanges including a currency gain module that compares a predominant base currency against one or more complementary currencies to calculate their respective percentage gains in the base currency over time, a currency pullback module that calculates a pullback score for each complementary currency over time, and a currency path module that determines one or more currency paths comprising one or more successive trades in which a complementary currency exceeding a gain threshold and satisfying a pullback threshold is traded. The currency gain module, the currency pullback module, and the currency path module comprise one or more of logic hardware and executable code, the executable code stored on one or more non-transitory computer-readable media.