Here is a puzzle that has quietly ruined more retirements than any market crash. Two investors earn the exact same average return over twenty years. Same arithmetic mean. Same set of yearly percentages, just shuffled into a different order. One of them ends up comfortably wealthy. The other runs out of money before the two decades are up.
Nothing separates them except the order in which their returns arrived. That is it. And if that sentence does not bother you yet, it should, because almost every retirement projection you have ever seen assumes the order does not matter. This is the risk that hides inside the average, and today on The Edge we are going to pull it into the light.
The average is lying to you
When someone tells you a portfolio returned eight percent a year on average, your brain fills in a smooth, gently rising line. Reality never looks like that. The average is a summary that deletes the single most important piece of information: sequence.
While you are only accumulating, and not withdrawing a dime, sequence genuinely does not matter much. A dollar you never touch does not care whether the good years came first or last, because it is all still compounding on itself in the end. This is why sequence risk is nearly invisible during your building years and why so few people ever learn to fear it.
The moment you begin taking money out, everything changes. The instant withdrawals enter the picture, the order of returns stops being cosmetic and starts being the whole game. And the same trap runs in reverse for anyone dollar cost averaging in: when you are steadily adding money, an early stretch of low prices is a gift, and an early surge can quietly work against you. In both directions, the mechanism is the same, and it is worth understanding down to the mechanics.
Two investors, same average, different fate
Let me make this concrete with round numbers. Two retirees each start with one million dollars. Each withdraws sixty thousand dollars a year for living expenses, adjusted for nothing to keep the math clean. Each experiences the identical set of annual returns over their first stretch of retirement. The only difference is the order.
Investor A has the misfortune of a rough start. In the first few years the market falls hard, something like minus fifteen percent, then minus ten, then a flat year, before the good returns finally show up later. Investor B gets the mirror image: strong early years of solid gains, with the ugly years pushed to the back half. Average them out and both investors earned precisely the same annualized return over the full period. On a spreadsheet with no withdrawals, they would end at the identical balance.
With withdrawals in the mix, they end up in completely different universes. Investor A is selling shares to fund living expenses at the exact moment prices have collapsed. Every sixty thousand dollar withdrawal in those early down years carves out a bigger and bigger slice of the shrinking portfolio, and those sold shares are never there to participate in the recovery when it finally arrives. The early losses get locked in permanently by the act of withdrawing through them.
Investor B, drawing the same sixty thousand from a portfolio that grew first, barely feels those withdrawals. The account is fat and rising when the checks go out, so the money comes off the top of gains rather than out of the principal. By the time the bad years arrive, the portfolio is large enough to absorb them without breaking. Same average. One retiree cruises. The other is watching the balance approach zero and doing math they do not want to do.
THE CORE MECHANISM In accumulation, compounding forgives the order of returns. In withdrawal, every dollar you pull during a downturn is a share sold at the bottom, and those shares never come back to ride the recovery. Losses early plus withdrawals equal permanent damage. |
The recovery that never happens
There is a second, subtler blade to sequence risk, and it deserves to be named on its own. When Investor A sells shares into that early decline, those shares are gone for good. So when the recovery finally arrives, and historically it always eventually does, a chunk of the portfolio simply is not there to participate in it.
Investor A does not just suffer the downturn. Investor A misses part of the rebound, because the very assets that would have rebounded were already spent keeping the lights on. The loss and the missed recovery stack on top of each other, which is why a bad early sequence can be nearly impossible to claw back from through returns alone. You are not fighting one headwind. You are fighting two, and one of them is permanent.
Why this is worse than it sounds
The reason sequence risk is so dangerous is that it strikes precisely when you have the least ability to respond. It concentrates in the years right around the transition from earning to spending, the so called retirement red zone, roughly the five years before and the five years after you stop working.
Hit a brutal sequence in that window and you have almost no good options. You cannot easily go back to full time earning. You cannot wait out a decade long recovery when you are actively drawing the account down. And cutting your spending, while it helps, only goes so far. The math has already turned against you, and it did so not because your average return was bad but because the timing was cruel. A person who retired into a bad opening stretch and a person who retired a few years earlier into a good one can follow identical strategies and land in wildly different places, through nothing but luck of the draw.
This is the humbling part of the whole subject. Two disciplined, well informed investors doing everything right can get very different outcomes purely from when they happened to be born and when they happened to retire. That is not a comfortable thing to accept, but pretending it is not true is how people sleepwalk into the red zone with no defense.
The mirror image for savers
It is worth dwelling on the accumulation mirror, because most readers of this are still building, not spending. When you are steadily investing a fixed amount every month, a long stretch of falling or flat prices early in your journey is one of the most valuable things that can happen to you, even though it feels like the exact opposite while you live through it.
Every contribution during that stretch buys more shares at lower prices, and those cheap shares are the ones that do the heaviest lifting when the market eventually climbs. The investor who suffers a boring, disappointing first decade and a roaring second one often ends up far ahead of the one who got the exciting returns first. The order that terrifies a retiree is a quiet gift to a saver. Same phenomenon, opposite sign, and knowing which side of the transition you stand on tells you exactly how to feel about a bad year.
Why the safe withdrawal rate is a range, not a number
This is also the real reason the famous four percent withdrawal guideline comes wrapped in so many asterisks. That rule of thumb, draw four percent of your starting balance and adjust for inflation, was reverse engineered from history to survive even the worst sequences on record. It is not a promise of four percent. It is a floor built specifically to withstand a terrible opening decade.
Retire into a kind sequence and you could have safely spent considerably more and still died with a fortune. Retire into a cruel one and even four percent can feel tight. The guideline is not wrong. It is just quietly a statement about sequence risk wearing the costume of a simple percentage, and once you see that, the whole industry obsession with pinning down the one correct withdrawal number starts to look like the wrong question entirely.
How the sophisticated actually defend against it
You cannot control the sequence the market hands you. You can control how exposed you are to a bad one. The serious approaches all do the same fundamental thing: they make sure you are never forced to sell growth assets at the bottom to fund your life. Here are the main defenses, in rough order of how much lifting they do.
Hold a cash and bond buffer you can live on. This is the bucket approach in its simplest form. Keep a meaningful reserve of stable assets, often two to three years of spending, so that when stocks fall you draw from the buffer and leave your equities alone to recover. You are converting a forced sale into a patient one.
Use flexible withdrawal rules, not a fixed number. Static withdrawal plans are brittle. Dynamic rules, often called guardrails, tell you to trim spending modestly after bad years and allow more after good ones. Small, temporary cuts in a downturn dramatically improve survival, because you are not carving fixed dollars out of a portfolio that cannot afford them.
Build a bond tent around the transition. Deliberately raise your allocation to stable assets in the years right around retirement, when sequence risk peaks, then let equities drift back up once you are safely through the red zone. You are heaviest in defense exactly when the danger is greatest.
Manage variance, not just the average. Two portfolios with the same expected return but different volatility do not carry the same sequence risk. The smoother one is genuinely safer for a spender, even if the brochure return is identical. Chasing the highest average while ignoring the ride is how people walk straight into the trap.
Notice what none of these defenses are. None of them is a stock tip. None of them is a prediction about what the market will do next year, because nobody has that and the ones who claim to are selling something. Every one of them is a structural choice you make in advance, so that when a bad sequence arrives, and eventually one always does, your plan does not depend on the market being kind.
There is a behavioral defense that belongs right alongside the structural ones, and it might be the most important of all: do not let a bad early sequence panic you into selling everything. The instinct, when the red zone turns ugly, is to bail to cash and lock in the damage permanently, which is the single worst possible response to sequence risk. The buffer and the guardrails exist precisely so that you are never forced into that panic. Their deepest purpose is not really the couple of percentage points they add to a survival table. It is that they let you hold your nerve, keep your growth assets invested, and actually be present for the recovery instead of watching it from the sidelines in cash.
The takeaway that actually matters
The average return is the number the industry loves, because it is simple and it sells. But the average is a story about a portfolio nobody actually lives in. The moment you are spending from your money, the order of returns can matter more than the average itself, and the most disciplined investors build their entire withdrawal strategy around that single truth.
If you are still accumulating, the lesson is quieter but no less real: enjoy the fact that sequence is forgiving you right now, keep buying steadily through the ugly years when shares are cheap, and understand that the game will change character the day you flip from adding to spending. Start building your buffer and your flexibility before you need them, not during the crisis that reveals you did not have them.
Same average, different fate. Now you know why. The investors who retire well are not the ones who earned the highest number on a brochure. They are the ones who made sure a cruel sequence could never force their hand.
That is the edge. See you next Sunday.
Alex
The Wealth Grid | Issue 78 | July 5, 2026
The Edge is our Sunday deep dive: no pitches, no links, just the thinking. Reply anytime and tell me what you want dissected next.