The classic investment portfolio is a 60/40 split between stocks and bonds. In thinking about this asset mix, we consider stocks to be the risky or volatile component and bonds to be the “safe” component. Equities provide growth while the bonds provide steady income, reduced overall risk and capital preservation in that part of the portfolio.
However, those assumptions didn’t hold in 2022 – far from it. Both the stock and bond markets fell by double-digits for one of the few times in history. According to Vanguard, the typical 60/40 portfolio declined for U.S. investors by a painful 16% in 2022. And that has led some observers to question the soundness of the strategy going forward.
Those doubts turn on the evolution of interest rates that occurred during the four decades to the end of 2021. Through those years, rates as measured by the yield on a 10-year U.S. Treasury bill declined from 15.8% in 1981 to 0.5% at the end of 2021. This drop in rates supercharged capital gains on bonds. (Bond yields and prices move inversely).
The result was exceptional, low-risk returns for a 60/40 portfolio. A speaker at a recent Morningstar conference in the U.S. noted that the Barclays Aggregate U.S. Bond index returned 7.75% annually over the 40 years through 2021, generating 87% of the return you would have received just investing in stocks with 45% lower volatility. That was a pretty sweet deal.
The party ended abruptly last year when central banks, led by the U.S. Federal Reserve, began ratcheting up interest rates to slow the economy and bring down soaring inflation. Rising rates hurt both the stock and bond markets at the same time.
With the bond portion of a 60/40 portfolio no longer enjoying a tailwind from falling interest rates in an environment of high volatility and sticky inflation, some asset managers argue investors should abandon the strategy.
Leading the charge is giant asset manager BlackRock, which argued in an article that higher interest rates to fight inflation could cause stocks and bonds to continue to fall simultaneously. “In the end, bonds may lose out as well [as stocks], potentially exacerbating losses in a diversified 60/40 portfolio.”
BlackRock and other 60/40 doubters say investors should devote a greater share of their portfolio to so-called alternative investments to generate better returns. These investments include hedge funds, private assets, inflation-protected bonds, infrastructure and commodities.
Other heavyweight asset managers, including Vanguard and Goldman Sachs Asset Management, have lined up on the other side of the debate. They note that the 2022 losses have substantially improved expected returns from a 60/40 portfolio, a development I highlighted in a recent blog post.
In that piece, I discussed PWL Capital research that showed a remarkable improvement in expected returns, mostly thanks to higher bond yields. Our expected return estimate for a 60/40 portfolio went from 4.97% annually at the end of 2021 to 5.81% in the latest edition of our Financial Planning Assumptions.
Vanguard noted a similar improvement in their expected return estimates and declared: “Far from dead, the 60/40 portfolio is poised for another strong decade.”
What’s more, Goldman Sachs observed that a loss like 2022 is exceedingly rare. Indeed, U.S. stocks and bonds simultaneously lost money over a 12-month period just 2% of the time since 1926. While a big loss like in 2022 will occur, Goldman argues that 60/40 remains a valid approach.
We remain firmly on the side of those who see the 60/40 portfolio as a good starting point for construction of a broadly diversified portfolio, especially now that formally ultra-low bond yield have normalized.
We take a skeptical view of alternative investments. They generally carry high fees and we have yet to see convincing evidence that they produce higher returns at equivalent risk levels. When you add in liquidity risk for some of the strategies, our advice is to proceed with caution. Indeed, many alternative investments suffered through a terrible year in 2022.
As I’ve discussed in earlier blog posts, longer life expectancies mean most people need the growth that comes from stocks to ensure their money lasts as long as they do. However, with bond yields returning to more normal levels, those who had previously increased their equity allocation can now consider dialling it back to reduce portfolio volatility.
Why do I say 60/40 is a good starting point? Because there’s no ideal asset mix. Your portfolio has to be customized to fit your age, life goals and risk tolerance.
In the end, the right asset allocation is the one that allows you to stay the course through inevitable market downturns. That’s the right strategy 100% of the time.
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