This thesis is focused on tools, that can be used to reduce companies exposure against currency risk. The diploma thesis is divided into two parts – methodical and applicational. The first, metodical part describes financial risk, which also incluedes currency risk. Futhermore this section includes the definition of relevant legislation in the field of derivatives. This section also includes major legislative definitions related to derivatives area.The applicational part of the thesis examines model situation regarding to application of hedge accounting in practice. It contains an analysis of the development of the office space market in Prague, a brief intriduction of the analyzed company, a proposal for mandatory hedging documentation and...