A recent Wall Street Journal article nicely summarized the fundamentals that define fixed income ETFs. Understanding these fundamentals can be very helpful in using them in a portfolio seeking the stability of bonds.
Quality, maturity and pricing of Bond ETFs
Two fundamental components that define a fixed income ETF are credit quality and maturity. Remember that fixed income ETFs are a collection of individual bonds. Also, a bond is a loan with fixed payments. That is why bonds are often referred to as “fixed income” investments. Credit rating firms, like Moody’s or Standard & Poor’s, evaluate the riskiness of the loans. Maturity measures the time until the original loan amount is due.
So, there is a strong relationship between a bond’s yield and these two fundamental components. Generally speaking, when a bond is first created, yields are higher under either (i) a lower credit rating or (ii) longer maturity. Once a bond is issued and makes its way into a bond ETF, the price of the bond ETF can then change. But, the underlying bonds continue to issue a stream of constant payments. The only significant exception occurs when the corporation making the bond payments enters bankruptcy protection.
Consequently, prices tend to decrease when demand is low, and investors prefer riskier assets. Conversely, prices of fixed income ETFs generally go up when investors seek less risky assets. Yields are then inversely related to bond prices, so higher prices lead to lower yields.
What else can affect a bond’s price?
Interest rates can also affect bond prices. Short term rates set by the federal funds rate appear in the image below. As this chart shows, short term rates continue to climb steadily. But, these rates remain below typical levels seen in the past 20 years.
So, are bonds a bad investment as short-term rates go up?
This is an important question with no easy answer. But, few would argue that a diversified portfolio benefits from having some bond investments. So, the question should be “what part of the bond market is most suitable to your goals? ” Given there are bond ETFs covering a wide range of maturities and riskiness, there is no shortage of fixed income ETFs for investors to pick from. To this end, we encourage you to subscribe to ETFMathGuy to see how we use a wide variety of commission-free bond ETFs in efficient portfolios.
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