Understanding Duration and Interest Rate Risk: Bond Sensitivity Educational Tutorial
In the world of fixed income, there is a silent killer of returns that many novice investors overlook: interest rate risk. While bonds are often perceived as "safe havens" compared to equities, the reality is that their prices can be highly volatile when central banks—such as the State Bank of Pakistan (SBP) —adjust monetary policy.
Introduction: The Silent Risk in Your Bond Portfolio
In the world of fixed income, there is a silent killer of returns that many novice investors overlook: interest rate risk . While bonds are often perceived as "safe havens" compared to equities, the reality is that their prices can be highly volatile when central banks—such as the State Bank of Pakistan (SBP) —adjust monetary policy.
For investors trading on the Pakistan Stock Exchange (PSX) , understanding bond duration is not merely an academic exercise; it is a necessity. With Pakistan navigating a delicate economic recovery under the IMF Stand-By Arrangement , managing historically high inflation (hovering near 30% in recent years), and a central bank that has raised its policy rate to as high as 22%, the Pakistani fixed income market has ne...
This comprehensive educational tutorial will dissect duration and interest rate risk specifically for the Pakistani market . We will move beyond the jargon to explain Macaulay duration, modified duration, convexity, and how SBP’s monetary policy impacts your PSX-listed bonds, TFCs (Term Finance Certificates), and Sukuks .
Chapter 1: The Foundation – What is Interest Rate Risk? Before we calculate duration, we must understand the problem duration solves.