Here's a fact that surprises people: two retirees can earn the exact same average return over their retirement and one runs out of money while the other dies wealthy. The difference isn't how much they averaged — it's the order in which those returns arrived. This is sequence-of-returns risk, and it's one of the most important and least understood ideas in retirement planning. If you're anywhere near living off your investments, it's worth understanding now.
What is sequence-of-returns risk?
Sequence-of-returns risk is the danger that the order of your investment returns — not just their average — seriously affects your outcome, specifically when you're withdrawing money. When you're adding to a portfolio, order barely matters; the average is what counts. But once you're drawing money out, the sequence becomes critical. A run of poor returns early in retirement, while you're withdrawing, can permanently damage a portfolio in a way the same poor returns later would not. Same average, radically different result — purely because of timing.
Why the order suddenly matters when you withdraw
The mechanism is simple but brutal. If the market falls early in retirement and you're selling investments to fund your living expenses, you're forced to sell more shares at low prices to raise the same amount of cash — permanently depleting your portfolio right when it's down. There's then less capital left to recover when the market rebounds, so even a strong recovery can't fully repair the damage. The same crash occurring later in retirement, after years of good returns had grown and cushioned the portfolio, does far less harm. It's the combination of withdrawing and a downturn early that's dangerous — each alone is manageable; together at the start, they can be devastating.
| Timing of a downturn | Impact while withdrawing |
|---|---|
| Early in retirement | Severe — selling low, depleting capital permanently |
| Late in retirement | Milder — portfolio already grew and cushioned |
| While still contributing | Often helpful — buying at low prices |
Notice the irony in the last row: a crash while you're still saving is often a good thing, letting you buy cheap — the exact opposite of its effect once you're withdrawing. This is why the years right around retirement are the most vulnerable.
How to manage the risk
You can't control market timing, but you can build defenses against a bad early sequence. Several approaches help: holding a cash buffer of a year or more of expenses so you can spend from cash instead of selling investments during a downturn; keeping a more conservative allocation around the start of retirement so a crash does less damage, drawing on asset allocation and the diversification of stocks and bonds; and staying flexible with withdrawals, trimming spending in bad years to avoid selling too much at the bottom. The underlying principle is the same one that governs handling a bear market: don't be forced to sell into a downturn. And the further out you plan — covered in planning retirement early — the more room you have to build these cushions.
Frequently asked questions
What is sequence-of-returns risk in simple terms? It's the risk that the order of your returns hurts you when you're withdrawing money — specifically, that poor returns early in retirement do far more damage than the same returns later, because you're forced to sell investments at low prices. The average return can be identical, yet outcomes differ dramatically.
Why does the order of returns matter in retirement but not before? When you're saving and adding money, order barely matters — only the average return counts, and downturns even let you buy cheap. Once you're withdrawing, selling during an early downturn permanently depletes capital, so the sequence becomes critical.
How do I protect against sequence-of-returns risk? Hold a cash buffer to avoid selling investments in downturns, keep a more conservative allocation near retirement, and stay flexible with withdrawals in bad years. The goal is to avoid being forced to sell at the bottom early in retirement.
Is a market crash bad while I'm still working? Often it's actually helpful — if you're still contributing, a downturn lets you buy investments at lower prices. Sequence risk is a concern specifically when you're withdrawing, which is why the years right around retirement are the most sensitive.
The bottom line
Sequence-of-returns risk means the order of your returns, not just the average, can make or break a retirement — because a bad run early, while you're withdrawing, forces you to sell low and permanently depletes your portfolio. The vulnerable window is right around retirement. Defend against it with a cash buffer, a more conservative allocation near the start, and flexible withdrawals, so a downturn never forces you to sell at the worst possible time.
Not being forced to sell into a downturn is a principle that governs good investing as much as good retirement planning — it's fundamentally about managing risk. The Asymmetric Trader's Playbook ($29, reg. $39) is a risk-first framework built on that same foundation of surviving the bad periods to thrive over the long run.
This article is general financial education, not financial or retirement advice. Retirement planning is highly individual — consult a qualified financial professional for guidance specific to your situation.