What is sequence-of-returns risk?

The risk that the order of returns — not just their average — determines your outcome once you're withdrawing money. Bad returns early in retirement force you to sell shares at depressed prices, permanently shrinking the base your portfolio recovers from.

When does sequence risk matter most?

In the years just before and the first decade after retirement — the “red zone” — when the portfolio is largest and withdrawals amplify every loss. The same crash later in retirement is far less damaging.

How do I protect against sequence-of-returns risk?

The main defenses are flexible withdrawals, a cash buffer of one to three years of spending, a more balanced allocation through the fragile years, and a lower starting withdrawal rate. Simulate your plan to see which helps your odds most.

Sequence-of-Returns Risk: Why the Order of Returns Can Make or Break a Retirement

6 min read · Updated 2026-07-08

Here's a fact that surprises almost everyone: two retirees can hold the same portfolio, withdraw the same amount, and earn the exact same average return over 30 years — and one runs out of money while the other leaves a fortune. The only difference is the order the returns arrived in.

That's sequence-of-returns risk, and it's arguably the single biggest danger in retirement planning. Here's why it exists, when it bites hardest, and the practical defenses against it.

Test your plan against bad sequences →

Why the order suddenly matters

While you're accumulating and not touching the money, the order of returns barely matters — a bad decade early or late compounds out to roughly the same place. The math changes the moment withdrawals start.

When markets fall and you're also withdrawing, you're forced to sell more shares at depressed prices to raise the same income. Those shares are gone — they never participate in the recovery. A bad stretch early in retirement permanently shrinks the base your portfolio compounds from, while the very same bad stretch twenty years in, after the portfolio has already grown, is a shrug.

A tale of two retirees

Imagine two people who each retire with $1,000,000 and withdraw the same inflation-adjusted amount. Retiree A hits a 2008-style crash in year one; Retiree B gets the identical returns in reverse order, with the crash arriving in year twenty-five. Same average return, same withdrawals — yet Retiree A can plausibly run dry while Retiree B finishes with more than they started with.

The averages hide this completely. It's why a plan that “assumes 7% a year” tells you almost nothing about whether your retirement actually survives.

Two retirees, same average return, same withdrawals (illustrative)

Crash in year 1Same returns, crash in year 25

Stylized $1M retirement with identical withdrawals and the same set of returns — only the order differs. Simulate your own plan in the Retirement Lab.

The danger zone: the years around retirement day

Sequence risk is concentrated in a window — roughly the last few working years and the first decade of withdrawals — when the portfolio is at its largest and every loss is amplified by withdrawals on the way down. Planners sometimes call it the “retirement red zone.” A crash in that window does damage a crash at any other time simply can't.

This is also why retiring into a bear market feels so unfair: it's the one moment your plan is most fragile.

The defenses that actually help

You can't control what markets do the year you retire, but you can blunt what it does to you:

•Flexible withdrawals — trimming spending in bad years (even modestly) dramatically improves survival odds versus withdrawing a fixed inflation-adjusted amount no matter what.
•A cash or short-term bond buffer — one to three years of spending you can draw in a downturn instead of selling stocks at the bottom.
•A more balanced allocation through the red zone — less equity in the most fragile years, even if you re-risk later.
•A lower starting withdrawal rate — the blunt but reliable lever; starting at 3.5% instead of 4% buys real margin.
•Working one more year (or retiring gradually) — shrinks the withdrawal window and lets the portfolio compound one more year.

How to see your own sequence risk

Averages can't reveal sequence risk — simulations can. Run your plan (balance, withdrawal, horizon, allocation) through thousands of return orderings and look at the probability of success and the bad-percentile paths, not the median. Then test the defenses one at a time: flexible spending, a lower rate, a different mix. You'll see exactly which lever moves your survival odds most.

Try it yourself

Retirement Withdrawal LabTest your withdrawal plan across thousands of return orderings.Open tool →Monte Carlo SimulationSee the full range of paths, not just the average.Open tool →Risk Profile QuestionnaireCheck how spend-down and horizon change your risk capacity.Open tool →

FAQ

What is sequence-of-returns risk?: The risk that the order of returns — not just their average — determines your outcome once you're withdrawing money. Bad returns early in retirement force you to sell shares at depressed prices, permanently shrinking the base your portfolio recovers from.
When does sequence risk matter most?: In the years just before and the first decade after retirement — the “red zone” — when the portfolio is largest and withdrawals amplify every loss. The same crash later in retirement is far less damaging.
How do I protect against sequence-of-returns risk?: The main defenses are flexible withdrawals, a cash buffer of one to three years of spending, a more balanced allocation through the fragile years, and a lower starting withdrawal rate. Simulate your plan to see which helps your odds most.

Key terms in this guide

Plain-English definitions in the Learning Hub.

Sequence-of-returns risk →Sustainable starting withdrawal →Monte Carlo simulation →Probability of success →

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