Derivatives can be a very convenient way to achieve financial goals. For example, a company that wants to hedge against its exposure to commodities can do so by buying or selling energy derivatives such as crude oil futures. Similarly, a company could hedge its currency risk by purchasing currency forward contracts. Derivatives can also help investors leverage their positions, such as by buying equities through stock options rather than shares. The main drawbacks of derivatives include counterparty risk, the inherent risks of leverage, and the fact that complicated webs of derivative contracts can lead to systemic risks.