S. Celik, G. Demirtaş and M. Isaksson look at this topic from a global perspective in “Corporate Bond Markets in a Time of Unconventional Monetary Policy” (OECD Capital Market Series, February 2020). Here's some background.
Between 2008-2018 global corporate bond issuance averaged USD 1.7 trillion per year, compared to an annual average of USD 864 billion during the years leading up to the financial crisis. As a result, the global outstanding debt in the form of corporate bonds issued by non-financial companies reached almost USD 13 trillion at the end of 2018. This is twice the amount in real terms that was outstanding in 2008. The United States remains the largest market for corporate bonds. But non-financial companies from most other economies, including Japan, the United Kingdom, France and Korea, have all increased their use of corporate bonds as a means of borrowing. On a global scale, the most significant shift has been the rapid growth of the Chinese corporate bond market. The People’s Republic of China (China) has moved from a negligible level of issuance prior to the 2008 crisis to a record issuance amount of USD 590 billion in 2016, ranking second highest in the world.
But when borrowing rises sharply, there are also natural questions to ask. Is the overall level of risk associated with these loans rising or falling? Are the borrowers actually planning to repay, or are they planning to take out more loans in the future--thus raising the possibility of "roll-over risk" if it becomes harder for them borrow in the future? Or to make these questions concrete, think about how the coronavirus news affects the risks of the bonds already issued in the enormous surge of borrowing by Chinese corporations.
Even before coronavirus, it looked as if the riskiness of corporate bonds as an overall category was on the rise. Corporate bonds are either "investment grade," in which case they get a credit rating from bond agencies, or "non-investment grade." In the "investment grade" bonds, the OECD report points out:
Our more detailed analysis of the composition of the investment grade category reveals a marked continuous increase in BBB rated bonds, which is the rating just above non-investment grade. While BBB rated bonds made up about 30% of all investment grade bonds issued in 2008 they accounted for almost 54% in 2018. This relative increase in lower rated investment grade bonds has come at the expense of a decrease in AA and AAA rated bonds. ... This prolonged decline in bond quality points to the risk that a future downturn may result in higher default rates than in previous credit cycles.Another way of looking at risk is to look at the "covenant protection," which refers to the legal language in the bond contracts and how much power it gives to those who purchased the bonds if repayment isn't made on time. These protections have been weakening, too.
Compared to the pre-2008 period there has been a marked decrease in the use of key covenants for non-investment grade bonds. ... While lower levels of covenant protection may allow companies to escape default for a longer time, the expectation of a company’s default and achievable recovery rates may still affect investor portfolios negatively. Moreover, historical data shows that low quality covenants have a significant negative effect on recovery rates.Yet another way of looking at risk in corporate bonds is to look at how much the companies need to repay in the relatively near-term of the next few years.
As of December 2018, companies in advanced economies need to pay or refinance USD 2.9 trillion within 3 years and their counterparts in emerging economies USD 1.3 trillion. At the 1-, 2- and 3-year horizons, advanced and emerging market companies have the highest corporate bond repayments since 2000. Notably, for emerging market companies, the amount due within the next 3 years has reached a record of 47% of the total outstanding amount; almost double the percentage in 2008.
For China's economy, one way in which disruptions from the coronavirus are going to percolate through to the rest of the economy is through China's corporate bond market. For the US economy, at least some monetary and banking policymakers are already doing some advance thinking about how to react if the US corporate bond market comes under stress.
For some previous posts and link to reports and commenters worried about corporate debt, see:
- "U.S. Corporate Debt: Warning Signs?" (March 6, 2019)
- "U.S. Corporate Debt and Leveraged Loans: Financial Snags Ahead?" (September 21, 2018)
- "The Dramatic Expansion of Corporate Bonds" (June 21, 2018)
- "Financial Risks: Views from the Office of Financial Research" (January 29, 2016)