I want to show you something. It's a demonstration I use with almost every client I work with, because in twenty-plus years of doing this work, I've never found a more effective way to explain why a good investment strategy alone isn't enough to protect a retirement.
Here's the setup. Two investors. Both start with $1 million. Both experience the exact same annual returns over a 20-year period — the actual S&P 500 returns from 2000 to 2020, with an average of 7.79% per year. Same returns. Same average. Same everything.
Except one investor experiences those returns in the actual order they happened. The other experiences them in reverse, the same returns, but backwards.
During the accumulation phase, if neither investor is withdrawing money, the outcome is identical. Both end up with roughly $3.5 million. The order of returns doesn't matter when you're not spending.
Now add a 5% annual withdrawal, $50,000 per year, adjusted for inflation. This is where it gets uncomfortable.
The investor who experienced the actual 2000–2020 returns (which started with two brutal years, the dot-com crash, then 9/11) runs out of money entirely in year 14. The investor who experienced the same returns in reverse, starting with the strong years at the end of that period, ends up with $1.7 million after 20 years.
Same returns. Same average. Same withdrawal rate. One runs out of money. One thrives.
That's sequence of returns risk. And it's the most underappreciated threat to retirement security that I know of.
Why the Order of Returns Matters So Much
When you're in the accumulation phase, saving and investing over a career, the order of your returns is essentially irrelevant. A bad year followed by a good year produces the same outcome as a good year followed by a bad year, because you're not withdrawing. Time smooths everything out.
Retirement changes that equation completely.
When you're drawing from your portfolio to fund your lifestyle, a significant market decline in the early years of retirement creates a compounding problem. You're selling shares at depressed prices to cover expenses. Those shares are gone, they can't participate in the eventual recovery. And because your portfolio is now smaller, even a strong recovery produces less in absolute dollar terms.
The technical term is "sequence of returns risk." The practical term is: retiring into a bad market can permanently impair your retirement, even if the market eventually recovers.
This is why the conventional retirement planning wisdom, "just get a good average return and you'll be fine", is dangerously incomplete. Averages don't pay your grocery bill. Sequence does.
The 4% Rule and Its Limits
You've probably heard of the 4% rule, the widely cited guideline suggesting that retirees can withdraw 4% of their portfolio annually, adjusted for inflation, and have a high probability of not running out of money over a 30-year retirement.
It's a useful starting point. But it was developed in the 1990s, based on historical return data that included some of the strongest equity market periods in American history. And it doesn't account for the specific sequence of returns you'll experience, which, by definition, you can't know in advance.
More importantly, the 4% rule treats your portfolio as a single pool of money. It doesn't distinguish between money you need in the next two years and money you won't touch for twenty. That distinction, as it turns out, is everything.
The Structural Solution: Segmenting by Time Horizon
The most effective defense against sequence of returns risk isn't a different investment strategy. It's a structural one.
The idea is straightforward: you don't need all of your money to perform well at the same time. You need different portions of your money to perform well at different times.
Here's how I think about it with clients:
The Foundation (Your Income Floor) This is your guaranteed income. Social Security, pension, any annuity income. It's market-proof. It doesn't go down when the S&P drops 30%. It covers your essential expenses regardless of what the market does. The stronger your foundation, the less your retirement depends on portfolio performance in any given year.
The Liquidity Bucket (Years 1–3) Cash and near-cash. This is your "sleep well at night" money. When the market drops 25% in year two of your retirement, you're not selling equities to pay your bills, you're drawing from this bucket. This is what gives your growth investments the one thing they need most: time.
The Growth Bucket (10+ Year Horizon) This is your long-term equity exposure. Because it has a 10+ year time horizon, because you're not touching it until your liquidity bucket is depleted and replenished, it can actually absorb market volatility the way it's supposed to. It doesn't have to perform well right now. It just has to perform well eventually.
The key insight: by segmenting your portfolio according to when you intend to spend it, you give your growth money back the time horizon that makes equity investing work. You never have to sell at the worst possible moment because you've already got years of spending covered in your liquidity and income layers.
What This Looks Like in Practice
Let me give you a concrete example. Imagine a couple with $1.5 million in investable assets, $5,000 per month in Social Security and pension income, and $8,000 per month in total spending needs. Their income gap, the amount their portfolio needs to generate, is $3,000 per month, or $36,000 per year.
Without a structural approach, they're drawing from a single portfolio. In a bad year, they're selling equities at depressed prices. Their portfolio shrinks faster than it should. Sequence risk is fully in play.
With a structural approach: - Their income floor ($5,000/month) covers 62% of their spending without touching the portfolio at all. - Their liquidity bucket holds 2–3 years of gap spending ($72,000–$108,000) in cash and short-term bonds. This is their buffer. - Their growth bucket holds the remaining assets in a diversified equity portfolio with a 10+ year horizon.
In a market downturn, they draw from the liquidity bucket, not the growth bucket. The growth bucket stays invested, participates in the recovery, and eventually replenishes the liquidity bucket. The sequence of returns in the growth bucket becomes largely irrelevant because they're not touching it during the bad years.
One of my clients put it simply after we walked through this framework: "I feel safer now that we have all these different things in place." That's the goal, not just a mathematically sound plan, but one that actually feels secure, because it is.
The Timing Question
Here's the uncomfortable reality: the sequence of returns you experience in retirement is entirely outside your control. You can't choose when to retire based on market conditions, or rather, you can try, but markets don't cooperate with human planning timelines.
What you can control is how much your retirement depends on favorable market conditions in the early years. The more robust your income floor, the more liquidity you have as a buffer, and the longer the time horizon on your growth assets, the less the sequence of returns matters to your day-to-day financial security.
Retiring into a recession is only as dangerous as your plan's reliance on the market to fund it. A well-structured plan can absorb a bad sequence. A poorly structured one cannot.
The Bottom Line
Most people spend their entire working lives focused on accumulation, growing the number. Very few spend meaningful time thinking about the structural question of how that number gets converted into sustainable income.
Sequence of returns risk is the reason that transition matters so much. The strategies that build wealth are not the same as the strategies that protect it. And the window around retirement, the five years before and the five years after, is when the stakes are highest and the margin for error is smallest.
If you're within a decade of retirement and you haven't stress-tested your plan against a bad sequence of returns, that's the conversation worth having. Not because a crash is inevitable, but because a plan that only works in good markets isn't really a plan.
It's a bet.
Jason Rindskopf is the founder of Two Waters Wealth Management and creator of the SMART Retirement Blueprint®. He works with high-achieving professionals and couples in the Charlotte, NC area who are within 10 years of retirement or recently retired. If you'd like to talk through your retirement income strategy, book a complimentary consultation here.