Bond valuation

In Chapter One, you valued a bond using a step-by-step approach. In this exercise, you will value a bond with a $100 par value, 3% coupon rate, and 8 years to maturity. You will layout the bond's cash flows and calculate the present value of each of those cash flows using the Aaa yield you obtained in the previous exercise.

The aaa_yield object is preloaded into your workspace with the value 0.0341.

This exercise is part of the course

Bond Valuation and Analysis in R

Exercise instructions

Create a cash flow object (cf) containing the bond's cash flows.
Use data.frame() to convert cf into a data frame so you can add additional variables needed for your analysis.
Add a time indicator (cf$t) representing years from 1 to 8 using the seq() command.
Calculate PV factor (cf$pv_factor) based on the Moody's Aaa yield (aaa_yield) and your time indicator (cf$t).
Calculate the present value of each cash flow (cf$pv) as the product of cf$cf and the PV factor (cf$pv_factor).
Finally, calculate the price of the bond as the sum() of the present value of each cash flow.

Hands-on interactive exercise

Have a go at this exercise by completing this sample code.

# Layout the bond's cash flows
cf <- c(___, ___, ___, ___, ___, ___, ___, ___)

# Convert to data.frame
cf <-

# Add time indicator
cf$t <- seq(___, ___, ___)

# Calculate PV factor
cf$pv_factor <- 1 / (1 + ___)^___

# Calculate PV
cf$pv <-

# Price bond
sum(___)

Edit and Run Code

This exercise is part of the course

Bond Valuation and Analysis in R

IntermediateSkill Level

5.0+

Start Course for Free

The fixed income market is large and filled with complex instruments. In this course, we focus on plain vanilla bonds to build solid fundamentals you will need to tackle more complex fixed income instruments. In this chapter, we demonstrate the mechanics of valuing bonds by focusing on an annual coupon, fixed rate, fixed maturity, and option-free bond.

Exercise 1: Introduction Exercise 2: Price vs. value Exercise 3: Time value of money Exercise 4: Computing a bond's future value Exercise 5: Computing a bond's present value Exercise 6: Bond valuation Exercise 7: Laying out the bond's cash flows Exercise 8: Discounting bond cash flows with a known yield Exercise 9: Convert your code into a function Exercise 10: Convert your code into a bond valuation function

Estimating Yield To Maturity - The YTM measures the expected return to bond investors if they hold the bond until maturity. This number summarizes the compensation investors demand for the risk they are bearing by investing in a particular bond. We will discuss how one can estimate YTM of a bond.

Exercise 1: Price-yield relationship Exercise 2: Credit ratings Exercise 3: The yield on the Moody's Baa index Exercise 4: Value the 5% bond using the Baa yield you found Exercise 5: Plotting the price/yield relationship Exercise 6: Components of yield Exercise 7: Risk-free yield Exercise 8: Plotting US Treasury yields Exercise 9: Plotting the investment grade spread Exercise 10: Estimating the yield of a bond Exercise 11: Finding a bond's yield Exercise 12: Use uniroot function to find YTM

Interest rate risk is the biggest risk that bond investors face. When interest rates rise, bond prices fall. Because of this, much attention is paid to how sensitive a particular bond's price is to changes in interest rates. In this chapter, we start the discussion with a simple measure of bond price volatility - the Price Value of a Basis Point. Then, we discuss duration and convexity, which are two common measures that are used to manage interest rate risk.

Exercise 1: Bond price volatility and the price value of a basis point Exercise 2: Price value of a basis point Exercise 3: Calculate PV01 of a 10% bond Exercise 4: Duration Exercise 5: Duration of a zero-coupon bond Exercise 6: Calculate approximate duration for a bond Exercise 7: Estimating effect on bond price using duration Exercise 8: Convexity Exercise 9: Calculate approximate convexity for a bond Exercise 10: Estimating effect of convexity on bond price Exercise 11: Estimating the bond price using duration and convexity

We will put all of the techniques that the student has learned from Chapters One through Three into one comprehensive example. The student will be asked to value a bond by using the yield on a comparable bond and estimate the bond's duration and convexity.

Exercise 1: Summarizing the main lessons Exercise 2: Find AAA bond yields as of September 30, 2016 Exercise 3: Bond valuation

Current Exercise

Exercise 4: Alternative cash flow vector code Exercise 5: Duration and convexity Exercise 6: Direction of price change Exercise 7: Calculate duration Exercise 8: Calculate convexity measure Exercise 9: The estimated price change using duration and convexity Exercise 10: Congratulations!