FOREX trade can be a good reference for the currency to determine, rather ascertain the basic rate of interest, which is determined by the central banks as the repo rate. Currency hedged for a longer time versus keeping in vaults, show a path to recovery against any FOREX trading. Here is a glimspe of the FOREX that is traded, to keep the interest rates steady. Two conclusions can be drawn. Hedging of Brent Crude in USD per barrel terms, and repo rate spread for hedging against currency fluctuations. FOREX changes are assumed for a change of two years in the given report.