Why Does the US Yield Curve Inversion Matter?


(MENAFN- DailyFX) Talking Points

- With US equity markets plunging this week, financial news media has been quick to point out movement in the bond market as the key catalyst.

- Portions of the US Treasury yield curve have inverted, sparking fears that the US economy is heading towards a recession within the next two years.

- Key spreads like the 3m5s and 3m10s have inverted.

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Why Do Investors Look at the Yield Curve? The yield curve, if it's based on AA-rated corporate bonds, German Bunds, or US Treasuries, is a reflection of the relationship between risk and time for debt at various maturities. A 'normal yield curve is one in which shorter-term debt instruments have a lower yield than longer-term debt instruments. Why? Put simply, it's more difficult to predict events the further out into the future you go; investors need to be compenstated for this additional risk with higher yields. This relationship produces a positive sloping yield curve.

When looking at a government bond yield curve (like Bunds or Treasuries), various assessments about the state of the economy can be made at any point in time. Are short-end rates rising rapidly? This could mean that the Fed is signaling a rate hike is coming soon. Or, that there are funding concerns for the federal government. Have long-end rates dropped sharply? This could mean that growth expectations are falling. Or, it could mean that sovereign credit risk is receding. Context obviously matters.

Does the US Treasury Yield Curve Inversion Matter? It's true that part of the US Treasury yield curve started to invert this week. We've seen both 2- and 3-year yields rise above 5-year yields. The 'flattening of the yield curve over the past year, predating this week's inversion, is rather apparent when comparing the shape of the yield curve today relative to that from last December:

The knee-jerk reaction by many market participants, but mainly financial news media, has been to declare the inversion of the US Treasury yield curve as a harbinger of a forthcoming recession. The stats speak for themselves: yield curve inversions (particularly in the 3m5s and 3m10s spreads) predict recessions (more on this shortly).

While there are certainly good reasons for concern the US-China trade war, the fading impulse of fiscal stimulus from the Trump tax plan, a housing market that is looking weaker amid higher interes rates its best to take a step back.

Let's Ask the Professor Amid all of the talk about the US Treasury yield curve inverting this week, the Duke University finance professor who is the godfather of yield curve analysis (his 1986 dissertation explored the concept of using the yield curve to forecast recessions) gave an interview to NPR ( which can be listened to here ). Professor Campbell Harvey made a few key points regarding the yield curve inversion which traders should take to heart:

1) The model Harvey used initially looked at the 3-month, 5-year spread (3m5s), and conventional wisdom points to the 2-year, 10-year (2s10s) spread as the yield curve; all of the concern this week about the 2-year, 5-year (2s5s) and 3-year, 5-year (3s5s) spreads inverting did not interest him, given that they as shorter-maturity instruments didn't qualify as 'short-term enough in his model;

US Treasury Yield Curves: 3m5s and 2s10 (1975 to 2018) (Chart 1) 2) The yield curve inversions being discussed now are not significant. According to his research, the yield curve needs to invert for at least one full quarter (or three months) in order to give a true predictive signal (since the 1960s, a full quarter of inversion has predicted every recession correctly);

3) Regardless of the 3m5s and 2s10s curves not inverting this week, Harvey still believes the period of aggressive flattening is significant and it the yield curve is signaling slower economic growth for the US, but not yet a recession.

This note was originally published on December 6, 2018.

--- Written by Christopher Vecchio, CFA, Senior Currency Strategist

To contact Christopher Vecchio, e-mail

Follow him on Twitter at @CVecchioFX

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