Retirement income
Sequence-of-returns risk, and why it only matters once
What is sequence-of-returns risk?
It is the risk that poor investment returns arrive early in retirement, while you are withdrawing. Selling into a decline permanently removes shares that cannot participate in the recovery. Two retirees with identical average returns over thirty years can end up in very different places depending on which years were the bad ones.
The short version
- Sequence risk affects portfolios in the withdrawal phase; a portfolio with no contributions or withdrawals is indifferent to the order of returns.
- The first five to ten years of retirement carry disproportionate influence over whether a withdrawal plan survives.
- Average return and realized outcome diverge once withdrawals begin, because withdrawals convert temporary losses into permanent ones.
- Sequence risk also applies in reverse during the accumulation phase, where poor early returns matter less than poor returns near the end.
Why the order of returns changes the outcome
Imagine two retirees who experience exactly the same thirty years of market returns, in opposite order. One gets the bad years first and the good years afterward; the other gets them the other way round. If neither withdraws anything, they finish identically. Order is irrelevant to a compounding sequence.
Add withdrawals and they diverge sharply. The retiree who hits losses early sells shares at depressed prices to fund living expenses. Those shares are gone. When the recovery arrives, there is less capital to participate in it. The retiree with the same returns in the opposite order sells into strength early and has a larger base when the bad years come.
Why this is retirement's specific risk
During accumulation, a decline is close to an opportunity: your contributions buy more shares. The math runs the other way once you stop contributing and start drawing.
This is why the standard advice to 'ride it out' is sound for a forty-year-old and incomplete for a sixty-five-year-old. Riding it out assumes you are not selling. A retiree funding living expenses from the portfolio is selling, every month, whether the market cooperates or not.
What actually reduces sequence risk
Several approaches address it, and they are not mutually exclusive:
- Holding several years of spending in stable assets, so a decline does not force sales of depressed holdings
- Adjusting withdrawals in response to portfolio performance rather than raising them on a fixed schedule regardless of conditions
- Managing exposure actively, so that the portfolio's participation in a sustained decline is reduced rather than complete
- Covering essential expenses with guaranteed income (a pension, Social Security) so the portfolio only funds discretionary spending
- Stress-testing the plan against poor early sequences specifically, not just against average returns
How to test your own plan for it
A Monte Carlo analysis that reports a probability of success is a reasonable starting point, but the useful version examines the failure cases rather than the headline number. Ask what the bad scenarios have in common and how early the damage occurs.
The more direct test: apply a severe early decline to your actual plan and see what you would have to change. If the answer is 'reduce spending by a manageable amount for a few years,' the plan is resilient. If the answer is 'return to work,' it is not.
Questions
Follow-ups we get asked.
Not in the same way. A portfolio with no withdrawals is indifferent to the order of returns over a given period. Sequence risk becomes material once withdrawals begin, which is why the years immediately around retirement carry the most weight.
It reduces volatility, which helps, but it also reduces expected growth across a retirement that may last thirty years. Most approaches combine some allocation adjustment with a spending policy that can flex and a cash reserve that prevents forced selling.
There is no single correct answer, but the reasoning is consistent: enough that a typical decline can run its course without forcing you to sell equities to eat. That is commonly framed as somewhere between two and five years of portfolio-funded expenses, adjusted for how much of your spending guaranteed income already covers.
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This article is general educational information, current as of July 29, 2026. It is not personalized investment, tax, or legal advice, and it does not take into account any individual's circumstances. Tax and benefit rules change; verify current rules against official sources before acting. TradeWinds does not provide tax or legal advice.