Sequence-of-Returns Risk: Why When You Retire Matters as Much as How Much You Saved

Sequence-of-returns risk is the danger that poor investment returns arrive early in retirement, when you are withdrawing from the portfolio, and permanently impair it even if long-run average returns turn out fine. The mechanism is that withdrawals during a decline force you to sell more shares at depressed prices, leaving fewer shares to participate in the eventual recovery. Two retirees can experience the identical set of annual returns in a different order and end up in dramatically different positions, one comfortable and one out of money. The risk concentrates in what researchers call the retirement red zone, roughly the five years before and five years after you stop working, when the portfolio is at its largest and withdrawals begin. The defenses are practical rather than clever: hold enough liquidity that you are never a forced seller, adjust spending when markets fall, choose a sustainable initial withdrawal rate, and retain some flexibility about when you retire.

Why does the order of returns matter if the average is the same?

Because withdrawals interact with returns in a way that contributions do not.

During accumulation, a decline is arguably helpful: you keep buying at lower prices, and the order of returns has relatively little effect on your ending balance. Once you are withdrawing, the arithmetic reverses. Selling shares to fund spending during a decline permanently removes those shares from the portfolio. They cannot participate in the recovery, so the portfolio has a smaller base from which to rebound, and each subsequent withdrawal represents a larger percentage of a shrunken balance. The damage compounds.

This is why identical average returns can produce opposite outcomes. A retiree who experiences strong early years builds a cushion that absorbs later declines comfortably. A retiree who experiences the same returns in reverse order, with the bad years first, may deplete the portfolio to a point from which no realistic subsequent return can recover, even though the average across the full period is identical.

The unsettling implication is that a meaningful part of a retiree's outcome is determined by the timing of their retirement date, which is largely a matter of chance rather than skill or discipline.

What is the retirement red zone?

The red zone is the window of maximum vulnerability, generally described as the five years before and five years after retirement. Two conditions coincide during it.

The portfolio is at or near its lifetime peak, so a percentage decline destroys the largest absolute amount of wealth you will ever have exposed. And withdrawals are beginning, or about to, which converts a paper decline into realized, permanent losses as assets are sold to fund spending. A 30% decline at 40 is an inconvenience that decades of contributions will overwhelm. The same decline at 64, on a portfolio ten times larger, with spending about to begin, is a different event entirely.

Recognizing the red zone changes what good planning looks like in those years. Risk capacity is materially lower during that window than at any other point, which argues for making the portfolio more resilient as you approach it rather than after trouble arrives.

What does the research say about sustainable withdrawal rates?

The literature on safe withdrawal rates exists largely because of sequence risk. The original 4% guideline, developed by William Bengen, was derived by asking what initial withdrawal rate would have survived the worst historical sequences, not the average ones.

Current research produces somewhat different figures. Morningstar's analysis concluded that a retiree beginning retirement in 2026 could start with a withdrawal rate of about 3.9%, adjusted for inflation thereafter, and sustain a 30-year retirement, up from 3.7% in 2025. That base case applies to portfolios holding between roughly 30% and 50% in equities.

One finding in that work deserves emphasis because it is counterintuitive. More equity-heavy portfolios do not support the highest starting withdrawal rates, precisely because their greater volatility increases sequence risk. The portfolio with the highest expected return is not the portfolio that most reliably supports spending, which is a distinction that matters enormously in the red zone. The broader question of how much you need is addressed in how much do you need to retire.

What actually defends against sequence risk?

Five approaches do most of the work, and they complement rather than substitute for one another.

Hold a liquidity reserve.The most direct defense is never being forced to sell equities during a decline. Holding one to three years of spending in cash and short-term instruments means a downturn can be met by spending from the reserve while the equity portfolio recovers untouched. This is the purpose of the Liquidity allocation in our framework, described in goals-based asset allocation, and it is the single most useful structural protection available.

Spend dynamically.Fixed inflation-adjusted withdrawals, the assumption behind most safe-withdrawal research, are unrealistically rigid. Retirees who reduce spending modestly after a poor year, or who skip an inflation increase, dramatically improve portfolio survival. Even small adjustments help, because they reduce the number of shares sold at depressed prices. Building discretionary spending into the plan, travel and gifts rather than fixed obligations, creates the flexibility to do this without hardship.

Choose a sustainable initial rate.The starting withdrawal percentage is the variable most within your control at the outset, and setting it conservatively buys durability. Where a higher rate is needed, it should be paired with genuine spending flexibility.

Adjust the allocation through the red zone.Reducing equity exposure as you approach retirement and increasing it modestly afterward, sometimes called a rising equity glidepath, addresses the specific vulnerability of the red zone. The intuition is that risk capacity is lowest at the transition and recovers as the retirement horizon shortens and early sequence risk passes.

Retain flexibility about the retirement date, and about income.Working an additional year or two after a poor market, or adding part-time income, is a powerful lever because it simultaneously avoids withdrawals, allows continued contributions, and shortens the horizon the portfolio must fund. Similarly, delaying Social Security to 70 provides an inflation-adjusted, guaranteed income floor that reduces how much the portfolio must deliver in the early years.

Withdrawal ordering also matters, both for taxes and for sequence risk, since spending from the right accounts at the right time reduces forced sales. That interaction is covered in tax-smart withdrawal sequencing, and the general discipline for market declines in what to do when the market drops.

A worked example: the same returns, two orders

The following is a hypothetical illustration, simplified to make the mechanism visible. Two retirees each begin with $2,000,000 and withdraw $80,000 in the first year, increasing with inflation. Over their first three years, both experience the same three annual returns: negative 15%, negative 10%, and positive 25%. Only the order differs.

The first retiree gets the bad years first. Year one: the portfolio falls 15% and she withdraws $80,000, leaving roughly $1,620,000. Year two: it falls another 10% and she withdraws again, leaving roughly $1,376,000. Year three: it rises 25%, but on that reduced base, so she recovers to roughly $1,635,000 after her withdrawal. She is below where she started, having sold shares at the worst possible prices in years one and two.

The second retiree gets the good year first. Year one: the portfolio rises 25% and he withdraws $80,000, leaving roughly $2,420,000. The subsequent declines then apply to a much larger base, and after the same three years and three withdrawals he holds substantially more than the first retiree, despite identical average returns.

The difference is entirely the order, which neither retiree chose. It illustrates why the defenses above focus on avoiding forced sales rather than on predicting returns. The figures are hypothetical and simplified for illustration.

Frequently asked questions

What is sequence-of-returns risk in simple terms?It is the risk that poor returns early in retirement, combined with withdrawals, permanently damage a portfolio even if long-run average returns are acceptable. Selling during declines removes shares that cannot participate in the recovery.

Why does it only matter in retirement?Because withdrawals convert temporary declines into permanent losses. While you are still contributing, a decline lets you buy at lower prices and the order of returns has little effect on your ending balance.

What is the retirement red zone?Roughly the five years before and five years after retirement, when the portfolio is at its largest and withdrawals begin. Declines during this window do the most lasting damage, which is why risk capacity is lowest then.

What is a safe withdrawal rate now?Morningstar's research put the base-case starting rate for a 2026 retiree at about 3.9%, adjusted for inflation over a 30-year retirement, for portfolios with roughly 30% to 50% in equities. That is a starting point for analysis rather than a rule, and it assumes rigid spending.

Does holding more stocks protect against sequence risk?No, generally the opposite. Higher equity allocations increase volatility and therefore sequence risk, which is why research finds they do not support the highest sustainable withdrawal rates despite higher expected returns.

What is the single best defense?Holding enough cash and short-term assets to fund one to three years of spending, so a decline never forces you to sell equities. Pairing that with willingness to adjust spending after poor years covers most of the risk.