As Tailwinds Fade, Excess Return Lies in Security Selection

Tight Spreads Point to Below Average Excess Returns for Corporate Bonds

As a result of investors’ anticipation of Fed rate cuts amid an ongoing economic expansion (covered in our Goldilocks and the Five Rate Cuts note), financial conditions eased in 4Q23, which saw credit spreads tighten alongside the “everything rally” in nearly all asset classes.

Corporate bond spreads, or the excess yield over treasuries, represent the compensation to a corporate bond investor for bearing the credit risk of the issuer. At an index level, the investment grade (IG) corporate spread serves as the credit risk premium for the entire sector. 

Right now, the spread stands at 97 basis points, which places it in the 36% percentile of spreads going back 1990 – not the tightest spread on record, but well below the long-term median level.

IG Corporate Spread (Basis Points)

What does the current level of spreads tell us about the prospects of excess returns for IG corporate bonds? Historically, is there any “juice” left in the current level of spreads for a corporate bond investor? We’ll use the history of the corporate bond market as a guide.
The charts below show the forward 1- and 3-year excess return for a given level of spread. Intuitively, the higher the spreads, the higher the forward excess return. The 3-year chart paints the same picture, but much more discretely, as all the negative excess return on a 3-year basis occurs when spreads were 150 basis points or lower. Spread levels above 150 basis points over treasuries have had a perfect record of positive excess returns over a 3-year timeframe.

Starting Spread Vs 1Y Forward Excess Return

At the current valuation (100 bps of spread and below), the median 1-year excess return is +32 basis points over treasuries, with 58.2% of occurrences resulting in a 1-year positive excess return; while on a 3-year forward basis, the median excess return is flat, with a positive excess return only 45.8% of the time.

Forward Returns and Hit Rates Vs Starting Spreads

Compared to the full history of corporate bonds since 1990: 86 bps of excess over one year (64% positive hit rate), and 225 bps over three years (68% hit rate), and it is clear that the future prospects for the outperformance of corporate bonds is well below the historical average. While the “Goldilocks” pricing in markets has served as a tailwind for corporate bonds in recent months, the risk/reward picture for the sector means that the key decision in this environment will be at the issuer/security level, rather than a simple “beta” allocation to the sector.

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