What Is the Yield Curve Telling Us?

The longest continuous yield curve inversion has finally come to an end. Or has it? The answer depends on how you measure it. That’s just one of my gripes with the yield curve inversion as an economic indicator, but before I get into that let’s back up a little bit.

Yield Curve Refresher

The yield curve shows the relationship between interest rates and the time to maturity for government bonds. An upward sloping yield curve is considered normal. Common sense tells us that investors should demand higher yields for bonds with more time to maturity. A downward sloping yield curve, or an “inverted” yield curve, is considered abnormal and often interpreted as a signal that economic trouble is on the horizon.

Normal and Inverted Yield Curve

These charts are for illustrative purposes only to show an example of each type of yield curve. These are not meant to represent the current or any past real yield curve. Click here for more information on the types of yield curves.

Using the Yield Curve as a Leading Indicator

It is commonly accepted in our industry that the two spreads[1] most commonly used to assess the shape of the yield curve are the two-year treasury yield minus the ten-year yield and the three-month minus ten-year. Looking back at the last four recessions, by both measures the yield curve has inverted and un-inverted prior to each recession. Not a bad track record[2], but if the yield curve un-inverts prior to each recession then it would seem that the un-inversion is a more important signal than the initial inversion.

10-Yr Treasury Constant Maturity

Source: Federal Reserve Bank of St. Louis. Data from 1/1/1982 through 9/9/2024. Retrieved from FRED on September 10, 2024.

This brings us back to today. The two-year minus ten-year spread un-inverted last week after being inverted for over two years. Perhaps this is a useful time frame for academics, but from our perspective it confirms that the un-inversion is the event of note. Unfortunately, there’s a problem there too. The three-month minus ten-year spread is still at one of its most inverted levels in at least the past 40 years.

To summarize, over two years after warning that a recession was on the way, the two most commonly followed yield spreads are now telling us that the yield curve has either un-inverted or remains at one of its most inverted levels in over 40 years… From my perspective, this isn’t a very useful signal, but I don’t think this is what the yield curve is “telling” us.