//-------------------------------------------------------------------------
public virtual void test_presentValueVega_parity()
{
SwaptionSensitivity vegaRec = SWAPTION_PRICER.presentValueSensitivityModelParamsVolatility(SWAPTION_REC_LONG, RATE_PROVIDER, VOLS);
SwaptionSensitivity vegaPay = SWAPTION_PRICER.presentValueSensitivityModelParamsVolatility(SWAPTION_PAY_SHORT, RATE_PROVIDER, VOLS);
assertEquals(vegaRec.Sensitivity, -vegaPay.Sensitivity, TOLERANCE_DELTA);
}
//-------------------------------------------------------------------------
/// <summary>
/// Calculates the present value sensitivity to the implied volatility of the swaption trade.
/// </summary>
/// <param name="trade"> the swaption trade </param>
/// <param name="ratesProvider"> the rates provider </param>
/// <param name="swaptionVolatilities"> the volatilities </param>
/// <returns> the point sensitivity to the implied volatility </returns>
public virtual PointSensitivities presentValueSensitivityModelParamsVolatility(ResolvedSwaptionTrade trade, RatesProvider ratesProvider, SabrSwaptionVolatilities swaptionVolatilities)
{
ResolvedSwaption product = trade.Product;
SwaptionSensitivity pointSens = isCash(product) ? cashParYieldPricer.presentValueSensitivityModelParamsVolatility(product, ratesProvider, swaptionVolatilities) : physicalPricer.presentValueSensitivityModelParamsVolatility(product, ratesProvider, swaptionVolatilities);
return(PointSensitivities.of(pointSens));
}
