The Foreign Exchange Ma rket is the largest financial market in the world. It was evident various investment alternativ es according to the pairs, where each has a given level of risk. The role of optimization is to achieve maximum perf ormance while minimizing the risk on this subject and several theories have emerged. The job of implementing an optimization model in Excel that al lows you to create efficient portfolios from the modern portfolio theory of Mark owitz telling the operator a couple of coins for investment and also using the t heory of fuzzy logic from the Mat Lab to take the decision to buy or sell.