Sequence-of-returns risk: why your first retirement years decide everything
Two retirees can save the same amount, spend the same amount, and earn the exact same average return over their retirement — and one dies wealthy while the other runs out of money. The difference isn’t skill, luck with stock picks, or fees. It’s the order the returns arrived. This is the single most underappreciated risk in retirement, and the years right around your retirement date are where it does its damage.
1. The most dangerous math in retirement
Picture two federal retirees, Pat and Robin. Both retire the same year with exactly $1 million in the TSP. Both withdraw $50,000 the first year and bump that by inflation every year after. Both earn the identical set of market returns over the next 20 years — the same average, the same good years, the same bad years. The only difference: Pat hits the bad years first, and Robin hits them last.
Twenty years later, Pat has about $379,000 left and is watching every dollar. Robin has about $1.58 million — more than they started with — and is thinking about legacy. Same savings. Same spending. Same returns. A gap of roughly $1.2 million, created entirely by the order the returns showed up. That gap is sequence-of-returns risk, and it is the reason two people can do everything “right” and land in completely different retirements.
In retirement, when you earn your returns matters far more than the average return you earn — because you are selling shares to live, and shares sold in a downturn never come back.
2. Why order didn’t matter while you were saving
For your entire working career, the order of returns barely mattered — and that’s exactly why this risk blindsides people. During the accumulation years, if you’re not pulling money out, a 20% loss followed by a 25% gain leaves you in the same place as a 25% gain followed by a 20% loss. The same dollars ride through both swings, so the ending balance is identical regardless of order. As Morningstar puts it, if you invest once and never touch it, there is no sequence risk at all; sequence risk only appears once there are cash flows.
Retirement flips that switch. The moment you start withdrawing, every market drop forces a decision your accumulation years never did: sell shares at a loss to pay the bills. Those shares are gone permanently. When the market recovers — and it always eventually does — you own fewer shares to recover with. A 30% drop in year two of retirement doesn’t just hurt that year; it permanently shrinks the base that every future year of growth compounds on. That’s why the same average return can produce wildly different outcomes: the path, not the average, determines how many shares survive the early storms.
Retirement (with withdrawals): order of returns → wildly different ending balance
3. The retirement red zone
If sequence risk is the disease, the retirement red zone is when you’re most exposed. Retirement researchers Wade Pfau and Michael Kitces popularized the term for the roughly ten-year window straddling your retirement date — commonly the five years before and the five to ten years after you stop working. It’s the danger zone because three things peak at once:
| What peaks in the red zone | Why it makes sequence risk worse |
|---|---|
| Portfolio size | Your balance is at or near its lifetime high, so a percentage drop is the largest dollar loss you’ll ever take. |
| Withdrawals begin | You switch from adding money to taking it out — downturns now force selling instead of buying. |
| Time to recover | You have the fewest years left to wait out a bad market before you need the money. |
The concept itself is older than the nickname. Financial planner William Bengen formalized the link between withdrawal rates and return sequences in his landmark 1994 paper, Determining Withdrawal Rates Using Historical Data — the same research that gave the world the “4% rule.” Once you’re 10 to 15 years into retirement, the threat fades: your portfolio has had time to grow, and you simply have fewer years left to fund.
A long run-up right before you retire feels reassuring — but it’s precisely when valuations are stretched and a correction is most likely to land in your red zone. Feeling rich at retirement is not the same as being safe in retirement.
4. See it yourself: same returns, opposite order
The calculator below runs the Pat-and-Robin experiment on whatever numbers you choose. It uses a single fixed 20-year sequence of market returns and applies it two ways: bad timing (the down years hit first) and good timing (the exact same down years hit last). Because both scenarios use the identical set of returns, they share the same average and the same compound growth rate — the only thing that changes is the order. Watch how far the two paths diverge.
Your numbers
Bad timing
Good timing
Both lines use the same 20-year return set (arithmetic average 7.5%, compound 7.0%) — identical except for order. Withdrawals are taken at the start of each year and grown by your inflation rate. This is an educational illustration of one principle, not a market forecast or a personal plan.
5. The numbers behind the risk
How much of your retirement outcome actually hinges on those first years? More than almost anything else you control. Michael Kitces’ analysis of historical safe withdrawal rates found that the correlation between the first year’s return and your sustainable 30-year withdrawal rate is just 0.21 — weak. But the correlation between the cumulative real return of the first ten years and that withdrawal rate is 0.79 — extremely strong. Squared, that means the red-zone decade explains roughly 60% of the variance in how your whole retirement turns out.
Read that again: the bull or bear markets of years 11 through 30 of your retirement matter far less than what happens in years one through ten. T. Rowe Price’s retirement-income research reaches the same conclusion independently — the early-retirement market environment is the dominant driver of long-term plan success. This is why a retiree who stepped away in 1966 (into a brutal decade) struggled with the same 4% withdrawal that a 1982 retiree sailed through. Same rule, same discipline, opposite sequence.
If 60% of your outcome is set in the first decade, then the years right around retirement deserve your most conservative, most deliberate decisions — not your most aggressive ones. The red zone is where caution pays for itself.
6. Why a “good average” can still leave you broke
Most retirement projections lean on a single number: an assumed average return, often something like 7%. Run a straight-line 7% every year and the math looks reassuring. But markets never deliver a straight line, and the average hides the danger. The portfolio in our calculator averages 7.5% arithmetically and compounds at 7.0% — a perfectly healthy return — yet the bad-timing version still ends with a fraction of the good-timing version’s balance. The average was identical. The experience was not.
The deeper reason is the gap between the average return and the return you actually experience when withdrawing. A 50% loss requires a 100% gain just to break even — losses and gains are not symmetric. Pair that asymmetry with forced selling, and a couple of bad early years can quietly reset the entire trajectory. The lesson isn’t that averages are useless; it’s that an average return is a planning input, not a promise — and any plan that ignores sequence is only describing the lucky half of the outcomes.
7. Five ways to defend against it
Sequence risk can’t be eliminated — no one controls when the next bear market arrives. But it can be managed, and most well-built retirement plans stack several of these defenses together:
| Defense | How it blunts sequence risk |
|---|---|
| 1. A cash & short-bond buffer | Holding two to three years of spending in cash and short bonds lets you pause selling stocks during a downturn and spend from the buffer instead — the core idea behind the bucket strategy. |
| 2. A rising-equity glide path | Pfau and Kitces showed that lowering stock exposure right around retirement and raising it again later (a “bond tent”) directly reduces red-zone vulnerability. |
| 3. Flexible / guardrail withdrawals | Trimming spending modestly in down years — rather than mechanically taking the same inflation-adjusted dollar amount — dramatically improves survival odds. |
| 4. A guaranteed income floor | Covering your essential bills with Social Security, a pension, or an annuity means a market crash threatens your extras, not your survival. |
| 5. Delaying Social Security | Each year you wait (up to 70) permanently enlarges an inflation-adjusted, market-proof income stream — the cheapest longevity-and-sequence insurance available. |
Notice that defenses 1 and 4 reduce sequence risk in the same fundamental way: they give you a source of spending that isn’t your stock portfolio, so you’re never forced to sell low. That principle — never be a forced seller in a downturn — is the heart of every good answer to sequence risk.
8. The federal employee’s built-in advantage
Here’s the good news if you’re a federal retiree: you start with one of the best sequence-risk defenses already built into your benefits. The FERS pension and Social Security together form a large, guaranteed, inflation-adjusted income floor that doesn’t care what the market did this year. The more of your essential spending those two streams cover, the less your TSP is exposed to sequence risk at all — because you can let the TSP ride through a downturn instead of selling into it.
The practical move is to know your income-floor coverage ratio: add up your FERS pension plus Social Security (and the FERS supplement, if you’re eligible before 62), and compare it to your essential annual spending — housing, food, healthcare, insurance. If the floor already covers the essentials, your TSP is effectively your “extras and emergencies” account, and a bad early market is an inconvenience rather than a crisis. If there’s a gap, that gap is exactly where sequence risk lives, and it’s the case for a larger cash buffer, a more conservative red-zone allocation, or delaying Social Security to widen the floor. Federal retirees who understand this have a genuine edge — but only if they actually map the floor against the spending rather than assuming the TSP has to do everything.
If your FERS pension plus Social Security covers your essential bills, the order of TSP returns can’t bankrupt you — it can only change how comfortable the extras are. Closing the gap between your floor and your essentials is the highest-value sequence-risk move a federal retiree can make.
9. Frequently asked questions
What is sequence-of-returns risk?
Sequence-of-returns risk is the danger that a string of poor investment returns early in retirement permanently shrinks how long your money lasts. It matters only when you are withdrawing money. When you sell investments during a downturn to cover living expenses, those shares are gone and can’t participate in the eventual recovery, so early losses compound in a way that later gains can never fully undo. Two retirees can earn the exact same average return over retirement and end up hundreds of thousands of dollars apart purely because of the order in which those returns arrived.
Why doesn’t sequence risk matter while you’re still working?
During the accumulation years, if you are not pulling money out, the order of returns doesn’t change your ending balance. A 20% loss followed by a 25% gain produces the same result as the reverse, because the same dollars stay invested through both. Sequence risk appears the moment there are cash flows — and it is most dangerous when those cash flows are withdrawals, because selling in a down market locks in losses on shares you can never buy back at that price.
What is the retirement red zone?
The retirement red zone is the roughly ten-year window straddling your retirement date — commonly described as the five years before and the five to ten years after you stop working. Researchers Wade Pfau and Michael Kitces popularized the term. It is the period of maximum sequence risk because three forces converge: your portfolio is at its largest absolute size, withdrawals are just beginning, and you have the least remaining time to recover from a bad run. A downturn in this window does far more lasting damage than the same downturn later in retirement.
Can a good average return still leave me worse off?
Yes. The average return tells you almost nothing about the outcome once you are withdrawing. What matters is the order. In a 20-year model using the identical set of returns — same arithmetic average and same compound growth rate — a retiree who hits the bad years first can finish with roughly a quarter of the money of one who hits the same bad years last. The average is the same; the path is not. This is why focusing only on a portfolio’s expected return, and ignoring the sequence, is one of the most common and expensive retirement-planning mistakes.
How do I protect against sequence-of-returns risk?
There are five proven defenses, and most retirees use several. First, hold a cash and short-bond buffer — often two to three years of spending — so you can pause selling stocks during a downturn. Second, consider a rising-equity glide path or bond tent that lowers stock exposure right around retirement and raises it later. Third, use flexible or guardrail withdrawals that trim spending in down years. Fourth, build a guaranteed income floor from Social Security, a pension, or an annuity so your essential bills don’t depend on the market at all. Fifth, delay Social Security to enlarge that inflation-adjusted floor. Federal retirees start with a structural advantage here, because the FERS pension and Social Security already form a large guaranteed floor.
- Morningstar, “What Is the Retirement Risk Zone?” (2026)
- Bloomberg, “Sequence of Return Risk: Why Market Timing Matters in Retirement” (March 2026)
- The Arca Labs, “Sequence of Returns Risk: The 2026 Retirement Guide”
- Flip Flops & Pearls, “How Sequence of Returns Risk Affects Your Retirement Withdrawals” (2026)
- DMI, “Navigating Sequence of Returns Risk in the Retirement Red Zone”
- Peak Financial Planning, “Sequence of Returns Risk & The Retirement Risk Zone”