Major bond investors, such as Pacific Investment Management Co. and Allspring Global Investments, are increasingly turning to mortgage-backed securities (MBS) in anticipation of better performance compared to corporate bonds. This shift is driven by concerns over inflation and tariffs potentially impacting corporate profits. Corporate bonds currently offer minimal risk premiums, with yields barely exceeding those of Treasuries. In contrast, MBS provide wider spreads and higher relative value, making them a more attractive investment option. Analysts suggest that the market may be underestimating the risks facing corporate bonds due to macroeconomic and policy changes.
Rising Appeal of Mortgage-Backed Securities
The growing interest in mortgage-backed securities stems from their superior risk-adjusted returns and broader margins for error. With spreads significantly wider than corporate bonds, MBS offers a safer haven for investors seeking stable income streams. Financial institutions like Pimco and Allspring have shifted their portfolios towards MBS, recognizing the potential benefits in an uncertain economic environment. Additionally, the gradual return of banks to the MBS market could further bolster demand and enhance liquidity.
In recent months, mortgage-backed securities have emerged as a preferred choice among fixed-income investors. The relatively wide spreads on MBS provide a cushion against potential economic downturns and policy shifts, making them an appealing alternative to corporate bonds. For instance, Fannie Mae current coupon mortgage bonds offer spreads of about 1.30 percentage points over Treasury benchmarks, which is notably higher than the paltry 0.78 percentage point spread seen in high-grade corporate bonds. This disparity has prompted leading investment firms to reassess their portfolio allocations, favoring MBS for their robust risk premiums and zero credit risk. Moreover, Goldman Sachs strategist Lotfi Karoui highlighted the exceptional valuations in agency MBS, noting that these securities pay nearly 45 basis points more than investment-grade corporate bonds despite having no credit risk. As a result, many institutional investors view MBS as a safer bet in today's volatile market conditions.
Corporate Bonds Face Heightened Risks
Corporate bonds, on the other hand, face increasing challenges due to narrow risk premiums and potential disruptions from tariffs and supply chain issues. The low spreads on corporate debt suggest that markets may be overly optimistic about future economic stability. Analysts warn that rising inflation and policy changes could erode corporate profitability, making these investments less attractive. Consequently, several asset managers are reducing their exposure to corporate bonds while increasing their holdings in MBS.
Corporate bonds have been trading at historically tight spreads, reflecting a market sentiment that may not fully account for emerging risks. According to Bloomberg index data, the average yield on US corporate bonds is only about 0.78 percentage points higher than comparable Treasuries, one of the lowest risk premiums in decades. This compressed spread indicates that investors are not being adequately compensated for taking on credit risk. Tariffs and supply chain disruptions could exacerbate this issue by raising costs for companies and squeezing profit margins. BofA analyst Yuri Seliger noted that tariffs might lead to higher prices for businesses, both directly and indirectly through supply chain interruptions. Furthermore, the recent US inflation report suggests that prices may continue to rise, adding pressure on corporate earnings. In light of these factors, some of the world's largest asset managers, including Pimco and Allspring, are cutting back on corporate bond exposure. Vanguard Group, for example, maintains a modest overweight position in MBS but runs a smaller overweight on corporate bonds due to the extremely tight spreads. Overall, the shift towards MBS reflects a strategic move by investors to mitigate risks and capitalize on more favorable valuations in the fixed-income market.
