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High Yield Bonds

High yield bonds – defined as corporate bonds rated below BBB− or Baa3 by established credit rating agencies – can play an important role in many portfolios. They typically offer higher coupons than government bonds or high grade corporate bonds (or, corporates) and have the potential for price appreciation in the event of an improvement in the economy, or performance of the issuing company (of course, if these conditions worsen, then prices can also go down). Because the high yield sector generally has a low correlation to other sectors of the fixed income market along with less sensitivity to interest rate risk, an allocation to high yield bonds may provide portfolio diversification benefits. In addition, high yield bond investments have historically offered similar returns to equity markets, but with lower volatility.
  • Coupon: The interest payments a bondholder receives until the bond matures.
  • Corporate bond: Debt instrument issued by a private corporation, as distinct from one issued by a government or government agency.
  • Credit/default risk: The risk of loss of principal or loss of a financial reward stemming from a borrower’s failure to repay a loan or otherwise meet a contractual obligation.
  • Credit spread: The yield differential between a corporate bond and an equivalent maturity sovereign bond. For example, if the 10-year Treasury note is trading at a yield of 3% and a 10-year corporate bond is trading at a yield of 4%, the credit spread is 1% or 100bps.
  • Fallen angel : An investment-grade company that has subsequently had its debt downgraded to speculative grade.
  • High yield bond: Corporate bonds rated below BBB- or Baa3 by established rating agencies.
  • Interest rate risk: When interest rates rise, the market value of fixed-income securities (such as bonds) declines. Similarly, when interest rates decline, the market value of fixed-income securities increases.
  • Maturity: The number of years left until a bond repays its principal to investors.
  • Yield: The income return or interest received from a bond.

What makes a bond high yield?

Credit rating agencies evaluate bond issuers and assign ratings. Issuers are rated on their ability to pay interest and principal as scheduled. Those issuers considered to have a greater risk of defaulting on interest or principal repayments are rated below investment grade (see Chart 1). These issuers must therefore pay higher coupons to attract investors to buy their bonds.

The table lists types of high yield bonds from investment grade (highest quality) to below investment grade (speculative and default). Separate columns list Moody’s, Standard & Poor’s and Fitch’s rating classifications from Aaa to D.

While agency credit ratings define the high yield market, and many investors rely on these ratings in their portfolio guidelines, investors may also conduct independent credit analysis of company fundamentals and other factors to form their own conclusions about a security’s risk of default.

Who issues high yield bonds?

Until the 1980s, high yield bonds were simply the outstanding bonds of “fallen angels” – former investment grade companies that had been downgraded below investment grade. Investment banks, led by Drexel Burnham Lambert, launched the modern high yield market in the 1980s by selling new bonds from companies with below-investment grade ratings, mainly to finance mergers and acquisitions or leveraged buyouts.

The high yield market has since evolved, and today, much high yield debt is used for general corporate purposes, such as financing capital needs or consolidating and paying down bank lines of credit. Mainly focused in the U.S. through the 1980s and 1990s, the high yield sector has since grown significantly around the globe in terms of issuance, outstanding securities and investor interest.

The bar graph shows the steady increase in market value in billions of the high yield bond market from 1997 to 2016. There is a slight decrease in 2008 and 2015.

New high yield issuance can vary greatly from year to year depending on economic and market conditions, typically expanding along with economic growth, when investors’ appetite for risk often increases, and waning in recessions or market environments, when investors are more cautious.

The high yield sector includes both originally-issued high yield bonds and the outstanding bonds of fallen angels, which can have a significant impact on the overall size of the market if large or numerous companies are downgraded to high yield status. Conversely, the sector can shrink when companies are upgraded out of the speculative grade market into the investment grade sector.

Why invest in high yield bonds?

High yield bonds may offer investors a number of potential benefits, coupled with specific risks. Investors can endeavor to manage the risks in high yield bonds by diversifying their holdings across issuers, industries and regions, and by carefully monitoring each issuer’s financial health.

  • Diversification – High yield bonds typically have a low correlation to investment grade fixed income sectors, such as Treasuries and highly rated corporate debt, which means that adding high yield securities to a broad fixed income portfolio may enhance portfolio diversification. Diversification does not insure against loss, but it can help decrease overall portfolio risk and improve the consistency of returns.
  • Enhanced current income – To encourage investment, high yield bonds usually offer significantly greater yields than government bonds and many investment grade corporate bonds. Average yields in the sector vary depending on the economic climate, generally rising during downturns when default risk also rises (high yield companies may be more negatively affected by adverse market conditions than investment grade companies). For example, for much of the 1980s and 1990s, U.S. high yield bonds typically offered 300 to 500 basis points of additional yield relative to U.S. Treasury securities of comparable maturity, according to the Securities Industry and Financial Markets Association. But following the credit crisis in 2007–2008, the spread between high yield and government bonds was much greater reaching highs of close to 2,000 basis points.
  • Capital appreciation – An economic upturn or improved performance at the issuing company can have a significant impact on the price of a high yield bond. This capital appreciation is an important component of a total return investment approach. Events that can push up the price of a bond include ratings upgrades, improved earnings reports, mergers or acquisitions, management changes, positive product developments or market-related events. Of course, if an issuer’s financial health deteriorates, rating agencies may downgrade the bonds, which can reduce their value.
  • Equity-like, long-term return potential – High yield bonds and equities tend to respond in a similar way to the overall market environment, which can lead to similar return profiles over a full market cycle. However, returns on high yield bonds tend to be less volatile because the income component of the return is typically larger, providing an added measure of stability. In addition, the combination of enhanced yield and the potential for capital appreciation (though less than for equities) means that high yield bonds can offer equity-like total returns over the long term. Also, bondholders have priority over stockholders in a company’s capital structure in the event of bankruptcy or liquidation; high yield bond investors therefore have a greater chance of recovering their investment than equity investors.
  • Relatively low duration – One reason high yield bonds often have relatively low duration is that they tend to have shorter maturities; they are typically issued with terms of 10 years or less and are often callable after four or five years. Generally, high yield bond prices are much more sensitive to the economic outlook and corporate earnings than to day-to-day fluctuations in interest rates. In a rising rate environment, as would be expected in the recovery phase of the economic cycle, high yield bonds would be expected to outperform many other fixed income classes. That said, the high yield sector does not demand great economic times; most issuers may function very well and continue to reliably service their debt in a low growth environment.

The table compares historical risks and annualized returns for the BoFA Merrill Lynch U.S. High Yield Index versus the S&P 500 Index  for 3-year, 5-year, 10-year, 15-year and 20-year periods

What are the risks?

Compared to investment grade corporate and sovereign bonds, high yield bonds are more volatile with higher default risk among underlying issuers. In times of economic stress, defaults may spike, making the asset class more sensitive to the economic outlook than other sectors of the bond market. High yield bonds share attributes of both fixed income and equities, and can be used as part of a diversified portfolio allocation.


Past performance is not a guarantee or a reliable indicator of future results. All investments contain risk and may lose value. High yield, lower-rated securities involve greater risk than higher-rated securities; portfolios that invest in them may be subject to greater levels of credit and liquidity risk than portfolios that do not. Investing in the bond market is subject to risks, including market, interest rate, issuer, credit, inflation risk, and liquidity risk. The value of most bonds and bond strategies are impacted by changes in interest rates. Bonds and bond strategies with longer durations tend to be more sensitive and volatile than those with shorter durations; bond prices generally fall as interest rates rise, and the current low interest rate environment increases this risk. Current reductions in bond counterparty capacity may contribute to decreased market liquidity and increased price volatility. Bond investments may be worth more or less than the original cost when redeemed. The credit quality of a particular security or group of securities does not ensure the stability or safety of the overall portfolio. Investors should consult their investment professional prior to making an investment decision.

The correlation of various indexes or securities against one another or against inflation is based upon data over a certain time period. These correlations may vary substantially in the future or over different time periods that can result in greater volatility.

BofA Merrill Lynch U.S. High Yield, BB-B Rated, Constrained Index tracks the performance of BB-B Rated US Dollar-denominated corporate bonds publicly issued in the US domestic market. Qualifying bonds are capitalization-weighted provided the total allocation to an individual issuer (defined by Bloomberg tickers) does not exceed 2%. Issuers that exceed the limit are reduced to 2% and the face value of each of their bonds is adjusted on a pro-rata basis. Similarly, the face value of bonds of all other issuers that fall below the 2% cap are increased on a pro-rata basis. The S&P 500 Index is an unmanaged market index generally considered representative of the stock market as a whole. The index focuses on the Large-Cap segment of the U.S. equities market. It is not possible to invest directly in an unmanaged index.

This material contains the opinions of the author but not necessarily those of PIMCO and such opinions are subject to change without notice. This material has been distributed for informational purposes only and should not be considered as investment advice or a recommendation of any particular security, strategy or investment product. Information contained herein has been obtained from sources believed to be reliable, but not guaranteed.

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