private decimal?GetExpRate(DateTimeOffset currentTime)
{
var timeLine = GetExpirationTimeLine(currentTime);
if (timeLine == null)
{
return(null);
}
return((decimal)DerivativesHelper.ExpRate(RiskFree, timeLine.Value));
}
private decimal GetExpRate(DateTimeOffset currentTime)
{
return((decimal)DerivativesHelper.ExpRate(RiskFree, GetExpirationTimeLine(currentTime)));
}