An old Wall Street adage says bond markets are smarter than equity markets, so when stocks encounter volatility, investors often look to the bond market for clues about the potential severity of equity market weakness.

The option-adjusted spread (OAS), a key data point, adjusts a bond’s yield for any unique features of the bond in an effort to make various bonds more comparable to each other. Since US Treasury bonds are generally considered safe-haven assets, the OAS of corporate bonds as a group is often based on a comparison to Treasury yields to determine bond investors’ perception of credit risk. The OAS reflects the additional yield investors may require to compensate for the specific risks in corporate bonds.

However, not all drawdowns in equity markets are the same, and bond investors oftentimes sniff this out, which can keep bond spreads from widening as much as they often do during periods of economic turmoil. As shown in the LPL Chart of the Day, equity drawdowns that are followed by a recession have encountered the largest increases in spreads:

Unfortunately due to the limited availability of daily OAS index data, we weren’t able to include the dot-com bubble in our study. However, we were able to capture two serious credit crises in history: the early stages of the COVID-19 pandemic and the 2008 financial crisis.

Since the S&P 500 peaked on September 9th, IG and HY credit spreads have widened by 14 and 66 basis points, respectively, although we have not yet encountered a 10% drawdown as of September 25th. “We haven’t seen a major reaction from credit markets to the September volatility thus far,” noted LPL Chief Market Strategist Ryan Detrick. “While there may be more volatility in our future with the upcoming election, we’ll continue to monitor corporate spreads for any major warning signs for corporate credit and protracted weakness in stock prices.”

Spread widening can also have dramatic effects on a company’s ability to issue new debt to manage its cash needs. Since a company is able to issue debt only at the prevailing yield of its outstanding bonds in the market, wide credit spreads can cause a serious cash crunch for corporations, and even create liquidity-driven bankruptcies—an added motivation for the Federal Reserve to provide relief to boost the economy through monetary policy.

While we believe Federal Reserve Chair Jerome Powell and the Federal Open Market Committee (FOMC) have so far been able to effectively manage the liquidity crisis that affected credit markets in the early stages of the pandemic, members of the FOMC continue to emphasize the need for additional fiscal stimulus to manage the risks to the economy. Despite the inability of Congress to come to an agreement on a new stimulus bill thus far, we’re encouraged by the recent calls to resume negotiations in Washington. In our view, additional fiscal stimulus could support sustainable recoveries in US economic growth and corporate profits.


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