The Comprehensive Guide to

Passive Income Investing

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How to Become Financially Independent Through Passive Income Investing

What is Effective Yield?

For bonds, effective yield is an annual rate of return associated with a periodic interest rate.

How Does Effective Yield Work?

The formula for effective yield is:

[1 + (i/n)]n - 1

Where:

i = the nominal rate
n = the number of payment periods in one year

Let's assume you purchase a Company XYZ bond that has a 5% coupon. The nominal rate is 5%.

If the interest is paid semiannually, number of payment periods in one year is two. Using the formula above, we can calculate that the effective yield is:

[1 + (.05/2)]2 - 1 = .05062 or 5.062%

Why Does Effective Yield Matter?

Effective yield is a more accurate measure of the investor's return than calculating a simple annual interest rate (the yield for one period times the number of periods in a year) because effective yield takes compounding into account.

However, effective yield also assumes the investor can reinvest their coupon payments at the coupon rate. In our example, this means the investor can reinvest that first coupon payment in another vehicle paying 5%. This is not always possible, especially in a falling interest-rate environment. When it is, the investor can earn interest on interest, thereby raising the investor's yield above the stated coupon rate.

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Paul Tracy
Paul Tracy

Paul has been a respected figure in the financial markets for more than two decades. Prior to starting InvestingAnswers, Paul founded and managed one of the most influential investment research firms in America, with more than 3 million monthly readers.