When the Shock Absorber Stops Absorbing

Every investor understands the purpose of a shock absorber.

The engine moves the car forward. The shock absorber is there to make the ride more manageable when the road gets rough.

For many years, investors often thought about stocks and bonds the same way:

• Stocks were the engine.

• Bonds were the shock absorber.

• A balanced portfolio tried to participate in growth while reducing some of the bumps along the way.

That framework still matters. Bonds can still play an important role in portfolios, including income generation, liquidity, and risk management. But the last several years have reminded investors of something important: the same shock absorber may not work the same way on every road.

When inflation is elevated and interest rates rise or remain elevated, stocks and bonds can be pressured by the same force at the same time. In that environment, adding more bonds may reduce equity exposure, but it may not provide the same diversification effect investors experienced in some prior periods.

The concept for advisors is simple:

A diversifier seeks to reduce portfolio risk, but it can also reduce returns and may not be effective in every market environment.

Source: Aswath Damodaran / NYU Stern and FT calculations, as shown in the original graphic. The chart compares historical stock/bond portfolio combinations across the periods shown in the graphic. Portfolio combinations, date ranges, data sources, and calculation methodology should be reviewed and confirmed before publication. Historical results are not predictive of future results.

The easiest way to read this type of chart is not to start with the math. Focus on the shape.

A portfolio diversifier is often evaluated by whether it can help reduce risk without requiring a proportional reduction in return. But that relationship varies by time period, market environment, and the assets used.

Chart Direction	Definition	Details
Left	Lower measured volatility	Risk has declined in the period shown
Up	Higher measured return	Return has improved in the period shown
Down and left	Lower risk, but also lower return	The portfolio may be reducing exposure rather than improving diversification efficiency

In the longer historical period shown in the first chart, stock/bond combinations appear to have provided a more favorable risk/return tradeoff than in the recent period shown.

The recent period looks different. That does not mean bonds are broken. It means that in a period shaped by inflation and higher rates, the traditional stock/bond relationship was less helpful than many investors had come to expect.

The Client-Friendly Explanation

Here is the short version advisors can use with clients:

• “Stocks are often the portfolio’s engine.”

• “Bonds have often acted like the shock absorber.”

• “But when inflation and interest rates are the source of the bump, stocks and bonds can both feel it.”

• “That is why we may want more than one kind of shock absorber.”

The point is not to abandon bonds. The point is to avoid assuming that bonds will always provide the same level of diversification in every rate and inflation environment.

Source: [Insert firm/source calculation details]. The chart is an index-based illustration comparing stock/bond combinations with stock/MLM-style trend-following combinations over the periods shown. Include the exact indexes used, date ranges, weighting increments, rebalancing frequency, return calculation method, and whether results are gross or net of fees. Indexes are unmanaged and not available for direct investment. The illustration does not reflect actual investor experience, fees, taxes, expenses, or trading costs. Other periods may produce materially different results, including underperformance or increased volatility.

Why Managed Futures May Belong in the Conversation

Managed futures are not the same as stocks or traditional bonds. Trend-following managed futures strategies may go long or short across markets such as:

• Equity indexes

• Interest rates

• Currencies

• Commodities

That flexibility can create different return drivers than a traditional long-only stock/bond portfolio. However, managed futures can also be volatile, may lose money, may underperform traditional assets for extended periods, and may not provide diversification benefits in every environment.

A balanced advisor framing is:

Managed futures may provide a different return stream when traditional stock/bond diversification is under pressure, but they are complex strategies that require careful evaluation and may not be suitable for all investors.

The “Higher for Longer” Challenge

This is not a prediction that the Federal Reserve will raise rates.

The more practical question is: what if rates remain elevated for longer than investors were used to before 2022?

If rates remain elevated, advisors may face a different portfolio-construction problem than they did during the long period of generally declining interest rates. In that prior environment, bonds often benefited from falling yields and could help cushion equity volatility. In a higher-rate or inflation-sensitive environment, that relationship may be less reliable.

That is why the conversation can shift from:

“How much should we put in bonds?”

To:

“What mix of diversifiers gives the portfolio more than one way to handle stress?”

Short FAQ for Client Conversations

Client question	Advisor response
Are you saying bonds are bad?	No. Bonds can still provide income, liquidity, and risk management. The point is that their diversification role can change when inflation and rates are elevated.
Are managed futures a bond replacement?	No. They are better described as a potential complementary diversifier with different return drivers.
Will managed futures protect me if markets fall?	There is no guarantee. Managed futures can lose money and may not perform well in every market environment.
Why discuss this now?	The recent inflation and rate environment showed that stocks and bonds can both be pressured at the same time. That makes diversification design more important.
Is this a recommendation?	No. Any allocation decision should be based on an investor’s objectives, risk tolerance, time horizon, liquidity needs, and overall financial situation.

Bottom Line

The traditional stock/bond portfolio was built on a simple idea: own the engine and the shock absorber.

That idea still has value. But the recent inflationary period showed that the same shock absorber may not work the same way on every road.

For advisors, the opportunity is to help clients think about diversification more clearly:

Not just more holdings. More sources of potential response.

Bonds may remain part of the answer. But in a higher-for-longer rate environment, relying only on bonds to diversify equity risk may be more challenging than it was in prior periods.

Managed futures and other diversifying return streams may deserve discussion as potential complements, not guarantees, replacements, or universally appropriate solutions.