Fixed Income

Growth of BBB Bonds—Keeping Risks in Perspective

December 7, 2018
Steven Boothe, Portfolio Manager
The downside risk to the recent growth in BBB rated supply, which has been driven by M&A activity, appears contained to certain sectors and regions.

Key Points

  • The surge in BBB rated supply, largely due to M&A activity, could form an increased headwind going forward should the U.S. economy see late-cycle moderation.
  • However, we view the risk as primarily a sector- and issuer-level concern as the increased BBB supply is concentrated in a few industry sectors.
  • The downside should remain contained as M&A activity has largely been in noncyclical industries and corporate fundamentals remain positive.   


It’s no secret that investment‑grade credit markets have witnessed a deterioration in overall credit quality in recent years due to an explosion of BBB rated paper. In the U.S., BBB rated bonds compose roughly half the entire investment‑grade market compared with just over one-third 10 years ago.1 The surge has been even more pronounced in euro‑denominated credit markets.2 While these trends have yet to have a significant impact on pricing, we think this could change. The question then becomes: What part of the BBB market is most at risk?

To pinpoint this, the key trend to note is that much of the credit deterioration stems from a prolific level of merger and acquisition (M&A) finance over the past three years. This has spurred both an uptick in new issuance by BBB names to fund M&A as well as A rated credits falling into the BBB bracket by levering up to fund acquisitions. We believe such “credit negative” M&A deals could be the first to come under the microscope should corporate profits start to fall as the U.S. economy enters late cycle. Interest rates are projected to continue moving northward into 2020, which would only exacerbate the problem as companies’ debt-servicing costs climb.

An additional risk is that companies may soon face a maturity wall. While maturing BBB bonds make up only around 2% of the U.S.- and euro‑denominated investment‑grade markets in 2019, this jumps to 10% or higher for both currencies in 2020 and remains elevated in the years following.

In our view, rating agencies have been slow to recognize the unhealthy levels of M&A leveraging, partly due to the above‑potential pace of the U.S. economy. There is growing concern about a potential increase in the number of “fallen angels” (investment‑grade credits being downgraded to high yield) as economic downturns typically feature an uptick in rating downgrades. With more of the market concentrated within the BBB rating bracket, an increasing portion of potential downgrades would cross the threshold into high yield. We believe the M&A-driven BBB universe should therefore be assessed cautiously.


A deeper look at a regional and sector level reveals that the deterioration in credit quality has been disproportionate. The risk is largely contained in certain market sectors rather than constituting a systemic threat to the wider asset class.

We see BBB growth posing greater concern in the U.S.‑denominated market rather than its euro counterpart. While BBB paper composes a similar portion in both markets, reverse‑Yankee bonds (U.S. companies issuing in euros) have accounted for more than a quarter of the growth of the euro‑denominated BBB market over the past five years and now compose around 20% of the total. These reverse‑Yankee issues could be among the first affected should the U.S. credit cycle roll over.

We view the investment‑grade credit market in Europe, including the BBB rated segment, as the more stable option in the medium term. Although a U.S. slowdown would not just impact U.S.‑based companies, Europe may hold opportunities to selectively shift allocation as it also offers more attractive average valuations following underperformance so far in 2018.

Even within the U.S. market, risk is not spread evenly. The jump in BBB supply has been far more pronounced in some sectors, with health care and energy witnessing the largest spikes. Therefore, focusing on sectors that have seen little change, or even slight drops, in the percentage of BBB names can reveal more low‑leveraged investment opportunities.


In addition to diversifying by region or sector, investors should not exaggerate the downsides. While the rise in risk associated with the increase in BBB securities is a concern, a thorough analysis reveals that a number of favorable trends will minimize the systemic risk.

First, the bulk of M&A activity after the financial crisis has come in the consumer noncyclical sector, whereas energy and capital goods dominated in the pre‑crisis period. Lower‑beta sectors, such as consumer noncyclicals, are likely to see relatively moderate weakness compared with higher‑beta industries in the next downturn.

Furthermore, there are more former A rated credits than former BB rated names within the wider BBB universe. This suggests that further downgrades to high yield status, even in a downturn, may be limited as the negative rating action may have already occurred in many cases.

Another point that may help contain possible downgrades is that, on average, companies with BBB ratings typically tend to reduce their leverage levels more quickly than higher-rated names in the A rating bracket. We believe that strong management teams are more likely to recognize the jump in costs associated with losing an investment‑grade rating and address leverage more proactively than an A rated issuer might when the impact of a move within investment grade is less. Many of the BBB rated names are former A rated companies with large capital structures that we see as still having room to maneuver to prevent further downgrades to high yield. This underscores the importance of active, bottom‑up security selection in both the BBB and the A rated sectors.

We believe investors should not shun BBB rated credits altogether but adopt a disciplined and flexible approach. Focusing on shorter‑dated credits while avoiding the long end, particularly in the more highly leveraged market sectors, should also help limit downside to this risk. Overall, corporate fundamentals are more favorable compared with recent history and the previous late‑cycle period before the financial crisis. We continue to identify names in the BBB rating bracket that demonstrate positive and stable cash flows alongside sound long‑term corporate strategies.

In our view, by prioritizing well‑managed companies with long‑term business models, investors can minimize their exposure to the corners of the BBB market that could experience the greatest stress in the next downturn.

1Bloomberg Barclays U.S. Aggregate Corporate Bond Index.
2Bloomberg Barclays Euro Aggregate Corporate Bond Index.

Important Information

This material is provided for informational purposes only and is not intended to be investment advice or a recommendation to take any particular investment action.

The views contained herein are those of the authors as of November 2018 and are subject to change without notice; these views may differ from those of other T. Rowe Price associates.

This information is not intended to reflect a current or past recommendation, investment advice of any kind, or a solicitation of an offer to buy or sell any securities or investment services. The opinions and commentary provided do not take into account the investment objectives or financial situation of any particular investor or class of investor. Investors will need to consider their own circumstances before making an investment decision.

Information contained herein is based upon sources we consider to be reliable; we do not, however, guarantee its accuracy.

Past performance is not a reliable indicator of future performance. All investments are subject to market risk, including the possible loss of principal. Bonds may decline in response to rising interest rates, a credit rating downgrade or failure of the issue to make timely payments of interest or principal. Investing internationally involves special risks including economic and political uncertainty and currency fluctuation. All charts and tables are shown for illustrative purposes only.

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