Relative Value Metrics

Several indicators used by fixed income investors to measure value have recently taken a positive turn, potentially flashing an entry-point opportunity for investors with money to put to work. While the trends outlined below highlight relative value metrics in both the corporate and municipal markets, also keep in mind that absolute yield levels available for the past several years have been considerably higher than they have been for most of the past 15+ years.

The difference between a corporate bond’s yield and the yield of the Treasury with a similar maturity is its spread. Spread represents the additional yield that an investor receives in return for taking on the additional credit risk that comes with loaning money to a corporation versus loaning money to the US government. In general, the wider (higher) a spread is, the more perceived risk the market is pricing into a bond. For example, AA-rated bonds should trade at tighter (smaller) spreads than BBB-rated bonds. Over the past 2.5 years, investment-grade corporate spreads have been steadily decreasing and as recently as mid-February, were near their lowest levels of the past 15+ years.

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Over the past month, corporate spreads have begun to widen, thus increasing their yield pickup over Treasuries. With Treasury yields offering some of the most attractive yields in the past two decades, the increase in spread over Treasury yields presents investors with an opportunity to lock in attractive levels of income. The chart to the right illustrates this recent trend. Current spreads are wider than their 30-day moving average across all sectors of the investment-grade corporate bond market by an average of ~10 basis points. To provide some context, this chart was showing negative values over most of the past 2 years, meaning spread levels were lower than recent averages.

Relative value in the municipal market has also seen a recent shift in a positive direction. The tools we use to measure this value are different than the corporate bond market to account for the tax-exempt status of municipals, but the story is very similar. A common metric used to evaluate how attractive municipal bonds are compared to their taxable counterparts is looking at municipal/Treasury ratios. Specifically, this is the AAA municipal bond yield divided by the Treasury yield of the same maturity. For example, if the AAA municipal yield was 1.50% and the corresponding Treasury yield was 2.00%, the municipal/Treasury ratio would be 75% (1.50 ÷ 2.00 = 75%). In general, the higher the ratio, the more attractive municipal bonds are relative to taxable bonds.

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