Globalization has changed the way companies do business. It took investments, consumer markets, imports and exports of goods and services from a local to a global scale. With this, companies began to deal with foreign exchange risk - currency fluctuations. Financial instruments were created to reduce variance in the cash flow, although this is not the only aspect to consider when companies decide to adopt a foreign exchange hedge. The purpose of this study is to carry out a sensitivity analysis of the probability of export company s cash in flow and out flow curves meeting, using the Copeland and Copeland (1999) model, before and after contracting a hedge. With the results, it is possible to measure the benefits (or otherwise) of contracting these instruments by means of reducing or increasing the probability of financial difficulties occurring in both cases.