What does the chart show?
This chart illustrates the trends in US 30-year treasury yields over the last three years compared with the total outstanding US public marketable debt, highlighting how the rise in yields aligns with an increase in public borrowing. Over the last week, the yields on these bonds climbed to the highest levels seen this year, reaching 4.32% following concerns regarding the trajectory of US debt leading to a credit ratings downgrade enforced by Fitch, and an announcement by the Treasury of an increase in borrowing in Q3. This is only the second ratings downgrade ever, after the S&P global ratings agency’s downgrade in 2011, and has put the spotlight back on the USA’s worsening fiscal outlook.
Bonds are rated by assessing the financial strength of issuers such as governments and corporates, ranking their ability to meet debt payments. These ratings are often used by investors when allocating risk in a portfolio and determine how much interest a borrower pays when raising funds in capital markets. The change from AAA to AA+ comes following the introduction of tax cuts and new spending initiatives, alongside a number of economic shocks which have contributed to a US debt burden that is projected to reach 115% of Gross Domestic Product by 2025. Furthermore, several political standoffs concerning the US debt ceiling have prompted a reassessment of policymakers' commitments to address the country’s sizeable and increasing debt. The downgrade now means that Fitch no longer regards US credit, often seen as the world’s risk-free asset benchmark, to be of the highest quality.
Why is this important?
US treasuries play a pivotal role in global markets and have long been a cornerstone of investor’s portfolios due to their widely acknowledged safe-haven status. As a benchmark for risk free assets, they impact interest rates and investment decisions worldwide. Consequently, the finances of the US and fiscal trajectory directly influence investor’s perception of risk and the government’s ability to service its debt, and therefore can have large impacts on the demand and pricing of US treasuries. Since Fitch’s decision last week, many have dismissed the verdict as irrelevant and unnecessary. Critics including the Treasury secretary Janet Yellen have pointed to the resilience of the US economy, with growth so far this year surprising to the upside and the resolution of the US debt ceiling debate, arguing that the US’s ability to make a repayment on its debt remains unquestionable.
Prominent investors such as Jamie Dimon and Warren Buffet, have similarly downplayed the significance of the news, stating that Fitch’s statement provides markets with no information that is not already priced into markets and that US treasuries remain the preferred asset haven of choice. Whilst US fixed income markets experienced sell-offs last week, these were also attributed to a ramp up of bonds sales to fund the widening budget deficit, rather than solely being a response to the ratings change. While it is important for investors to monitor the government’s handling of US finances, what is currently likely to have more of an impact on bond rates is the shifting outlook for economic growth, inflation, and interest rates. The US always expects to be number one, so whilst the ratings downgrade is not likely to have a lasting impact on markets, it may have rattled the nation’s pride and also provides fuel for political debates in the upcoming elections.