300 years of bond markets: Lessons for investors today
Key takeaways
Bonds are becoming attractive again. After one of the toughest periods in bond-market history, higher yields mean investors can now earn more income and rely less on falling interest rates to generate returns.
Bonds can still play an important diversification role. Government bonds have historically helped cushion portfolios during recessions and periods of equity-market weakness, making them an important tool for managing risk.
Opportunities have improved, but selectivity remains key. While higher yields offer better value than in the low-rate era, risks such as inflation, government borrowing and tight corporate credit spreads mean active bond selection is more important than simply buying the broader market.
After a difficult decade for bond investors, the outlook for fixed income has changed significantly. Yields have returned to historically more attractive levels, income once again provides a meaningful cushion against price movements, and bonds have regained their potential to diversify portfolios when riskier assets come under pressure.
Looking back over 300 years of market history helps put the recent experience into perspective. US Treasuries have recorded their weakest rolling 10-year return in more than two centuries. This followed an unusual period in which interest rates were held at exceptionally low levels, leaving investors with little income and considerable exposure to the eventual rise in yields.
The recent bond bear market in historical context
Average annual return from US government bonds over rolling 10-year periods
Source: Edward F. McQuarrie, Santa Clara University, W1M. Data as at 30th September 2026.
That adjustment has been painful, but it has also created a very different starting point for investors today. With yields now substantially higher, bonds no longer require a significant fall in interest rates to generate a positive return. Income can do more of the work, while a decline in yields could provide an additional capital gain. Even if yields rise further, the income available from many bonds offers a greater margin of safety than investors had during the low-rate environment.
The role of bonds in a portfolio
Bonds can perform three important roles: reducing volatility, providing diversification and generating income. Their diversification characteristics can be particularly valuable during periods of economic weakness or falling equity markets. Across recent US recessions and sizeable equity-market declines, government bonds have generally delivered positive returns, helping to offset weakness elsewhere in portfolios.
How government bonds have responded when equities have fallen
Source: Minack Advisers, W1M. Data as of 30th September 2026.
This does not mean bonds will rise whenever equities fall, or that they cannot lose money. It does, however, underline the importance of constructing portfolios for a range of market conditions rather than concentrating solely on the environment investors expect to prevail.
Different areas of the bond market can also serve different purposes. Short-dated bonds may offer a relatively defensive source of income and a useful option for cash management. Longer-dated government bonds carry greater interest-rate sensitivity, but that can allow them to deliver stronger returns if growth slows and rates fall. Combining the two can help balance income, capital stability and protection against weaker economic conditions.
More attractive valuations, but risks remain
Current yields sit towards the upper end of their longer-term historical range, making the prospective income from bonds more compelling than it was for much of the period following the global financial crisis. The amount of negatively yielding debt, which reached approximately US$18 trillion at its peak, has also fallen to zero. Together, these changes mean investors are being better compensated for accepting inflation and interest-rate risk.
There are nevertheless important risks to consider. Government borrowing remains high, while substantial bond issuance is needed to finance fiscal deficits. Private-sector demand for capital is increasing too, including the borrowing required to support investment in artificial-intelligence infrastructure, data centres, grid connections and semiconductors. This competition for capital could keep real and nominal yields elevated.
Selectivity is therefore essential. Corporate-bond credit spreads are close to historically low levels, suggesting that parts of the market may not offer sufficient compensation for the additional risks involved. This supports an active approach that can seek opportunities across countries, maturities and issuers rather than relying solely on broad bond-market indices.
Looking beyond the recent past
The bond bear market has left understandable scars, but it should not be viewed as evidence that the asset class is fundamentally broken. Rather, it reflected the unwinding of an exceptional period of extremely low yields.
Today, bonds offer higher starting income, the potential to diversify equity exposure and a more favourable balance between risk and prospective return. Inflation, public borrowing and rising demand for capital remain genuine challenges, but investors are now being paid considerably more to accept those risks. For long-term portfolios, that makes the case for carefully selected fixed income increasingly difficult to ignore.
All materials have been obtained from sources believed to be reliable, but their accuracy is not guaranteed. There is no representation or warranty as to the current accuracy of, nor liability for, decisions based on such information.
This material is provided for informational purposes only and does not constitute investment advice or a recommendation. The views expressed reflect current market conditions and are subject to change without notice.
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