Methods and systems for providing interest rate indices and notes

In one aspect, the present invention comprises a method comprising: receiving data regarding bank rates and swap rates for two or more currencies; calculating a swap curve for each of the currencies; calculating signals for each of the swap curves; and based on the signals, taking a position with respect to each of the swap curves and currencies. In various embodiments, the method further comprises calculating a sub-index value for each of the currencies, the sub-index values based on returns for the positions; and weighting each sub-index value and calculating a value for an index, based on a combination of the sub-index values. In another aspect, the invention comprises: receiving data regarding the index; calculating a performance value for the index to be used in a derivative based on the index; and calculating an amount due to, or owed by, an investor in the derivative, based on the performance value.