Consulting Bureau for Studies and Financial Analyzing advices and provides its clients who wants to manage their investments by their own with many strategies. For instance, it occurs when a fund manager buys low-risk government bonds over more risky corporate debt, or when an investor hedges their currency exposure with currency derivatives, stock and debt derivatives as well. Derivatives are known as futures contracts, forward contracts, options and swaps. Moreover, there are even derivatives based on weather data, such as the amount of rain or the number of sunny days in a particular region. The main idea is by transferring risk to another party, or by reducing the negative effect of it.