Leverage itself is a comparison of a trader's margin with the amount of loan funds from a broker to increase returns. This means that traders can use a margin that is smaller than the nominal forex contract they trade. leverage is one of the important factors in the world of trading. The existence of leverage can reduce the capital to play forex while increasing the ability of the cost of traders to transact. leverage is one of the important factors in the world of trading. The existence of leverage can reduce the capital to play forex while increasing the ability of the cost of traders to transact.