Convexity, Financial Management

Duration is good measure while estimating the percentage price change for a small change in interest rates but the estimation becomes inferior with the larger change in interest rate. Therefore, duration is only a good approximation of the percentage price change for small changes in yield. The reason for this is, duration is a first approximation for a small change in yield. By using a second approximation it can be improved. This approximation is known as a convexity. We can use convexity measure of the security to approximate the change in price that is not explained by duration.        

Posted Date: 9/10/2012 5:22:35 AM | Location : United States

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