The optimization of the parameters of the robot Gap and Trail. Optimization was performed for the Alpari broker, Standard account, and for IC Markets broker, Raw Spread account. Set files were received from 2019.09.08 with optimal parameters for the following currency pairs: AUDUSD, EURUSD, GBPUSD, USDCAD. Users are encouraged to use the new set files. Also, instead of the GBPJPY currency pair, it is recommended to use USDCAD.