Yield to Maturity (YTM)
The total annualised return an investor earns by holding a bond to maturity, accounting for price, coupons, and par repayment.
What is Yield to Maturity?
Yield to maturity is the internal rate of return of a bond held to maturity, assuming all coupon payments are reinvested at the same rate. It is the single discount rate that equates the present value of all future cash flows (coupons plus par repayment) to the bond's current market price. YTM is the most comprehensive yield measure for comparing bonds because it incorporates both income and any capital gain or loss. When a bond trades below par, YTM exceeds the coupon rate; when it trades above par, YTM falls below the coupon rate. YTM has no closed-form solution and is computed iteratively.
Formula
Worked Example
Secondary market, October 2024
Source: US Department of the Treasury — Daily Yield Curve Rates (2024-10-01)
Calculate Yield to Maturity
Current clean market price of the bond
Total annual coupon payment in dollars
Par value repaid at maturity
Time in years from today to maturity
1 = annual, 2 = semi-annual, 4 = quarterly
Yield to Maturity
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How to Interpret Yield to Maturity
📚 Bond Basics — Complete the path
- Bond Price
- Coupon Payment
- Yield to Maturity
- Yield to Call
- Bond Equivalent Yield