A non-deliverable forward (NDF) is a derivative contract that is used to hedge foreign exchange risk for currencies that are not freely convertible, such as the Brazilian real, Indian rupee, and Chinese yuan. NDFs work similarly to regular foreign exchange forwards by locking in an exchange rate for a future date, except they settle financially rather than through delivery of the foreign currency. At settlement, the difference between the contracted NDF rate and the current spot rate is paid out in U.S. dollars rather than delivering the foreign currency. NDFs provide a way for companies and investors to hedge currency risk for these restricted currencies.