/**
  * Computes the present value of the future security as the value of one future with a price of 0.
  *
  * @param future The future security.
  * @param curves The curves.
  * @return The present value.
  */
 public CurrencyAmount presentValue(
     final FederalFundsFutureSecurity future, final YieldCurveBundle curves) {
   double price = price(future, curves);
   double pv = price * future.getPaymentAccrualFactor() * future.getNotional();
   return CurrencyAmount.of(future.getCurrency(), pv);
 }