Sequence of Returns Risk for Long-Term Investors
Two retirees with the identical average return can end up worlds apart — one broke, one comfortable — purely because of when the bad years hit. That's sequence risk.
Don't have time? Here's what you need to know:
- 1Sequence-of-returns risk means the order of returns matters once you withdraw — early losses do far more damage than late ones.
- 2Two retirees with identical average returns can end up broke or comfortable purely based on when the bad years hit.
- 3The risk peaks in the roughly five years before and after retirement — the 'fragile decade' when withdrawals begin.
- 4Hold 1-3 years of cash and bonds and stay flexible on spending to avoid selling stocks during early downturns.
Why the Order of Returns Suddenly Matters
While you are accumulating and adding money, the order of your annual returns barely matters — over decades, only the average really counts, and a crash early on actually lets you buy cheap shares. The moment you start withdrawing, that changes completely. Now the sequence of returns matters as much as the average, because you are selling shares to live on rather than buying them.
Sequence-of-returns risk is the danger that a poor run of returns early in retirement, combined with withdrawals, permanently damages your portfolio. A big loss in your first few retirement years forces you to sell more shares at depressed prices to fund the same spending, leaving fewer shares to recover when the market rebounds. The same loss late in retirement does far less harm.
Same Average Return, Very Different Outcomes
Imagine two retirees who each earn the same average annual return over their retirement and withdraw the same amount each year. The only difference is the order of returns: one hits a steep market decline in the first few years, the other hits the identical decline near the end. Despite identical averages, the early-loss retiree can run out of money while the late-loss retiree finishes comfortably.
The reason is purely mathematical. Withdrawing during a downturn sells a larger fraction of the portfolio's shares, and those shares are gone — they cannot participate in the recovery. The portfolio that takes its hit early is permanently smaller, so even strong later returns apply to a shrunken base. This is why two people with the same long-run average can land in completely different places.
| Scenario | When the big loss hits | Effect on a retiree drawing income |
|---|---|---|
| Bad start | First few retirement years | Severe — may deplete the portfolio early |
| Bad end | Final retirement years | Mild — most withdrawals already taken |
| Still accumulating | Any time before retirement | Minimal — buys cheap shares, helps long run |
Tip: Sequence risk is concentrated in roughly the five years before and after your retirement date — the so-called fragile decade when your balance is largest and withdrawals begin.
How to Defend Against Sequence Risk
The strongest defense is holding bonds and cash as you approach and enter retirement. With a buffer of one to three years of spending in cash and short-term bonds like those in BND, you can fund living expenses from the stable side during a stock downturn instead of selling equities at depressed prices. That gives the stock portion time to recover and is the single most reliable countermeasure.
Flexibility helps too. Trimming withdrawals during bad years — skipping an inflation raise, or cutting discretionary spending after a sharp decline — dramatically reduces the chance of running out. A glide path that holds more bonds at the retirement date and gradually shifts back toward stocks afterward is another researched approach. The common thread is avoiding forced sales of stocks during the fragile early years.
Important: A 100% stock portfolio that worked beautifully during accumulation can be dangerous in the first retirement years. Sequence risk peaks exactly when your balance is largest and withdrawals begin.
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Why the 4% Rule Exists
Sequence risk is the reason for conservative withdrawal guidelines like the well-known '4% rule,' which suggests withdrawing about 4% of your starting balance, adjusted for inflation, to make a portfolio last roughly 30 years. That figure is deliberately cautious precisely because it has to survive the worst historical sequences — retirements that began just before major crashes — not just the average case.
The rule is a planning guideline, not a guarantee, and it assumes a diversified stock-and-bond portfolio. The deeper lesson is that your safe withdrawal rate depends heavily on the returns of your first retirement years, which you cannot control. Building in a cash buffer, some bonds, and the willingness to adjust spending is how you protect against a bad sequence you did not choose.
Frequently Asked Questions
What is sequence-of-returns risk?
It's the risk that the order of investment returns — not just the average — hurts you once you start withdrawing money. A poor run of returns early in retirement, combined with withdrawals, can permanently shrink a portfolio, while the same poor returns late in retirement do far less damage. During accumulation, the order barely matters.
Why doesn't sequence risk matter while I'm still saving?
Because you're adding money, not withdrawing it. An early crash while accumulating actually lets you buy shares cheaply, which helps long-run returns. Only the average return over your saving years really matters. Sequence risk appears when you flip from buying shares to selling them to fund spending.
How do I protect against sequence risk?
Hold one to three years of spending in cash and short-term bonds as you near and enter retirement, so you can avoid selling stocks during a downturn. Stay flexible with withdrawals, trimming spending after bad years. A bond-heavy allocation at the retirement date, sometimes shifting back toward stocks later, also helps. The goal is to avoid forced stock sales in the fragile early years.
Is the 4% rule related to sequence risk?
Yes. The 4% guideline is deliberately conservative because it must survive the worst historical return sequences — retirements that started just before major crashes — not just average markets. It assumes a diversified stock-and-bond portfolio and is a planning guideline rather than a guarantee. Your true safe rate depends heavily on your first few retirement years.
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Alex Harrington
CFA Level II Candidate, Finance & Economics
Alex Harrington is an independent ETF researcher and personal finance writer with over 8 years of experience analyzing exchange-traded funds. A CFA Level II candidate with a background in economics, Alex has reviewed 800+ ETFs and helped thousands of beginners build their first investment portfolios through clear, jargon-free education.
This content is for educational purposes only and does not constitute financial advice. Past performance does not guarantee future results. Consult a licensed financial advisor before making investment decisions.