Bond performance has improved, but volatility remains

Bond performance has improved, but volatility remains

Large monthly swings in core fixed income continue to rattle investors, calling into question its traditional role as a portfolio ballast.

Bloomberg Agg monthly and annual return

Chart showing monthly and annual returns for the Bloomberg U.S. Aggregate Index. While the index’s annual return has seen a solid recovery since its low point in 2022, the volatility of its monthly returns has picked up. The Agg has averaged 2% moves per month since the start of 2022 compared to an average of just 0.7% per month from 2015–2019.
Source: Bloomberg Finance, L.P., as of November 30, 2024.

  • The return of the “40” in the traditional 60/40 portfolio has been welcome news for investors as the Bloomberg Aggregate Index has generated attractive returns through much of this year driven by a steady decline in Treasury yields.
  • Yet core fixed income’s revival has come with a significant catch: It carries significantly more volatility than it did just a few years ago, calling into question the Agg’s traditional role within a portfolio as a ballast against volatile equities. 
  • Since the start of 2022, the Bloomberg Agg has moved an average of 2% per month, compared with an average of only 0.7% per month in 2015–2019.[1] Notably, the index return has been flat over the last five years (-0.01%) amid significant interest rate volatility.[1]
  • Higher long-term yields suggest higher expected nominal returns, yet the volatility profile of bonds has been transformed by the Fed’s dual-sided monetary policy regime as policymakers have to balance maximum employment with price stability in a way that had largely been absent during the last several decades. Further, elevated inflation pressures may diminish core fixed income’s real return profile.
  • Against this backdrop, the case for alternative sources of income as investors seek attractive growth and diversification potential continues to be attractive.


Catch up on chart of the week.


[1] Bloomberg Finance, L.P., as of November 30, 2024.

The chart of the week and any accompanying data is for informational purposes only and shall not be considered an investment recommendation or promotion of FS Investments or any FS Investments fund. The chart of the week is subject to change at any time based on market or other conditions, and FS Investments and FS Investment Solutions, LLC disclaim any responsibility to update such market commentary. The chart of the week should not be relied on as investment advice, and because investment decisions for the FS Investments funds are based on numerous factors, may not be relied on as an indication of the investment intent of any FS Investments fund. None of FS Investments, its funds, FS Investment Solutions, LLC or their respective affiliates can be held responsible for any direct or incidental loss incurred as a result of any reliance on the chart of the week or other opinions expressed therein. Any discussion of past performance should not be used as an indicator of future results.

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