Sequence of Returns Risk and Retirement Portfolio Resilience

Why retirement portfolio construction should respond not only to the mathematics of returns, but to the journey investors actually experience.

By Craig Racine -- Managing Director & CIO, Gyrostat Capital Management

Executive summary

Retirement Portfolio Resilience is the discipline of helping investors remain financially and emotionally invested throughout their retirement journey, regardless of the path markets take.

One of the greatest threats to achieving that objective is sequence of returns risk: the danger that poor investment returns early in retirement permanently impair retirement capital because withdrawals continue while portfolio values are depressed.

 

Over the past three decades, research by William Bengen, the Trinity Study, Wade Pfau and many others has established sequence of returns risk as one of the defining concepts in retirement-income planning.

Historical share market recoveries have ranged from approximately six months to more than seven years. Advisers commonly maintain one to three years of planned withdrawals in cash or liquid defensive assets. While these reserves provide valuable liquidity, their effectiveness ultimately depends upon the length of the market recovery.

This article combines established retirement research, historical market evidence and the Retirement Portfolio Resilience framework to explore how retirement portfolios can become less dependent upon a rapid and favourable market recovery.

An established body of retirement research

Sequence of returns risk is one of the most extensively researched concepts in retirement-income planning. Beginning with William Bengen's landmark research in 1994, and reinforced by the Trinity Study, Wade Pfau, Michael Kitces and many others, the evidence consistently demonstrates that the order in which investment returns occur can materially influence retirement outcomes.

Established Research Supporting Sequence of Returns Risk

 

Collectively, this research established sequence of returns risk as a fundamental consideration in retirement portfolio construction. The academic question is now well understood.

This article does not revisit that evidence. It considers the next logical question:

If sequence of returns risk defines the retirement challenge, what should the portfolio-construction response be?

That question forms the foundation of Retirement Portfolio Resilience.

The hidden impact of sequencing risk

The impact of sequence risk can be illustrated through a simple example.

Consider two retirees who each:

• retire with $1 million;
• withdraw $60,000 at the beginning of each year;
• experience the same annual investment returns;
• achieve the same average annual return of 6 per cent; and
• differ only in the order in which those returns occur.

One retiree experiences poor returns early in retirement followed by stronger returns later. The other experiences exactly the same returns in reverse order. After ten years, the difference is striking.

• The investor experiencing the adverse early sequence finishes with approximately $539,000.
• The investor experiencing the favourable early sequence finishes with approximately $899,000.
• The difference is approximately $360,000.

The average return is identical. The outcome is not.

Early investment losses, combined with ongoing withdrawals, reduce the capital available to participate in the subsequent recovery. Once capital has been withdrawn, it no longer benefits from the returns that follow.

This simple example explains why sequence of returns risk has become a defining concept in retirement planning. The mathematics are compelling. They do not, however, fully explain the retirement experience.

Source: Gyrostat Corporate Presentation (30 June 2026).

 

Why retirement changes everything

The sequencing example demonstrates the mathematics of sequence risk. It does not fully explain the retirement experience.

During the accumulation years, investors typically possess several natural sources of recovery capacity, including:

• employment income;
• regular savings;
• ongoing portfolio contributions;
• the opportunity to purchase assets at lower prices; and
• time for markets and earnings to recover.

These characteristics do not remove investment risk. They increase an investor's capacity to recover from it. As investors transition into retirement, that recovery capacity generally declines. Employment income reduces or ceases. Portfolio contributions stop. Withdrawals begin. Time available to rebuild capital becomes more finite.

At the same time, the consequences of investment losses often become more significant.

Capital accumulated over a lifetime becomes increasingly difficult to replace. A major market decline may threaten not only portfolio values, but planned retirement spending, lifestyle, confidence and financial independence.

The result is a fundamental change in the retirement equation.

Natural recovery capacity declines while loss-aversion sensitivity rises.

This is the point at which the mathematics of sequence risk becomes the lived experience of retirement.

It is also the point at which sequence-risk awareness becomes inseparable from behavioural survivability.

The years surrounding retirement are therefore not simply another stage of investing. They represent one of the most important stewardship responsibilities for advisers, because decisions made during this period may influence retirement outcomes for decades.

Without a deliberate retirement portfolio structure, investors may find themselves with less capacity to recover at precisely the time they are least able to tolerate significant losses.

Recovery is a journey

Markets are often described as having recovered when an index returns to its previous peak.

For a retiree, recovery is not merely that final date. It is the entire journey:

previous peak -> decline -> market bottom -> recovery to the previous peak

Withdrawals continue throughout that journey. So may uncertainty, behavioural pressure and difficult portfolio decisions.

If major market declines consistently recovered quickly, sequence risk would be easier to manage. United States market history demonstrates otherwise. The following data examines US sharemarket falls greater than 20 per cent between 1956 and 2022, measuring both the decline and the subsequent recovery to the previous market peak.

 

United States Share Market Falls Greater Than 20 Per Cent

Source: Gyrostat analysis of historical United States market index data. Recovery is measured as the index returning to its previous peak.

 

The 2020 decline completed the full peak-to-recovery journey in approximately six months. By contrast:

• the decline beginning in 1973 required approximately seven and a half years;
• the decline beginning in 2000 required approximately seven years; and
• the decline beginning in 2007 required approximately five and a half years

At the beginning of a market decline, neither the adviser nor the investor knows which historical path the next recovery will resemble.

That uncertainty is the portfolio-construction problem.

Recovery duration is only part of the experience. The path itself may contain further falls, sharp rallies, reversals and prolonged periods without clear progress, all while withdrawals continue.

Retirement Portfolio Resilience therefore seeks to understand not only when markets recover, but the journey investors must travel to reach that point.

 

The important role of cash reserves

One common response to sequence of returns risk is to hold planned retirement spending in cash or highly liquid defensive investments.

Depending on an investor's circumstances, spending requirements and overall portfolio structure, advisers commonly maintain reserves covering approximately one to three years of planned withdrawals.

Cash reserves perform several valuable functions. They provide liquidity for near-term spending, reduce the immediate need to sell growth assets during market declines and may improve investor confidence during periods of market stress.

Cash therefore answers an important question:

How will near-term retirement spending be funded?

It does not necessarily answer another:

What happens if markets have not recovered when the reserve has been used?

That distinction is important.

A one-year reserve provides approximately one year of liquidity.

A three-year reserve provides approximately three years.

Neither determines whether markets will recover within that period.

If the recovery journey extends beyond the available reserve, advisers and investors may face difficult decisions, including selling growth assets before recovery is complete, reducing retirement spending, changing portfolio strategy or abandoning the original investment plan.

Cash addresses liquidity. It does not remove dependence upon the duration of the market recovery.

Or more simply:

Cash can provide time. It cannot determine how much time markets will require.

 

Retirement Portfolio Resilience

Sequence of returns risk defines the retirement challenge. Retirement Portfolio Resilience considers the portfolio-construction response.

Its objective is not to predict when markets will fall, how far they will decline or how long recovery will take. It is to reduce dependence upon favourable answers to those questions.

A resilient retirement portfolio should intentionally perform four complementary functions.

 

Growth and defensive remain fundamental asset-allocation decisions.

Retirement Income and Retirement Portfolio Resilience are complementary portfolio functions. Together they encourage advisers to look beyond asset allocation alone and consider whether each essential retirement objective has been intentionally addressed.

Conclusion

Sequence of returns risk transformed retirement planning by demonstrating that average returns alone do not determine retirement outcomes.

Retirement Portfolio Resilience extends that insight by considering how portfolios can become less dependent upon favourable market paths.

Sequence of returns risk describes retirement mathematically. Retirement Portfolio Resilience seeks to understand and respond to retirement as it is experienced.

The objective is not to control the market path. It is to help investors remain financially and emotionally invested throughout it.

Retirement Portfolio Resilience Framework

Retirement Portfolio Resilience is built upon five complementary pillars that together seek to help investors remain financially and emotionally invested throughout retirement:

• Sequencing-Risk Awareness
• Behavioural Survivability
• Risk-Pricing Discipline
• Retirement Portfolio Construction
• Resilience Across Market Environments

Educational series

This paper forms part of the Retirement Portfolio Resilience educational series.

 

Together, these papers progressively build the evidence base and practical application of Retirement Portfolio Resilience as a framework for the prudent stewardship of retirement capital.

Each paper examines one dimension of retirement investing before integrating the concepts into the broader Retirement Portfolio Resilience framework.

Educational Progression

Institutional Risk Management

↓

Sequence-of-Returns Risk

↓

Behavioural Survivability

↓

Integrated Retirement Portfolio Construction

 

For further information about the Retirement Portfolio Resilience Framework, including supporting research, educational resources and the complete publication series, visit: https://www.gyrostat.com.au/2026-05-29-Retirement-Portfolio-Resilience-Framework-Final.pdf

Disclaimer

Gyrostat Capital Management prepared this document and it is intended only for Australian residents who are wholesale clients (as defined in the Corporations Act 2001). To the extent any part may be perceived as financial product advice, it is general advice only and has been prepared without taking into account the reader's investment objectives, financial situation or needs. Anyone reading this report must obtain and rely upon their own independent advice and inquiries. Investors should consider the Product Disclosure Statement (PDS) relevant to the Fund before making any decision to acquire, continue to hold or dispose of units in the Fund. You should also consult a licensed financial adviser before making an investment decision in relation to the Fund. One Managed Investment Funds Limited ACN 117 400 987 AFSL 297042, is the responsible entity of the Fund but did not prepare the information contained in this document. While OMIFL has no reason to believe that the information is inaccurate, the truth or accuracy of the information in this document cannot be warranted or guaranteed.