Since futures involves the use of leverage, you should carefully monitor the size of the GP, because it can vary greatly with strong price fluctuations. With an increase in the price of the underlying asset, the GP also increases, aggravating the situation and you need to replenish your account with new money in a timely manner to compensate for the GP. The closer the price is to the market, the higher the GP. A good idea is to have an additional amount on the balance immediately, as well as the use of stop losses to exit the transaction in a timely manner. Thus, the payment for leverage in futures trading is constant monitoring of GP. Before trading with a large amount, observe GP to orient yourself with your strategies in situations of a sharp change in GP.