The Bucket Strategy: What the Research Actually Shows

If you've spent any time reading about retirement income, you've run into the bucket strategy. Split your portfolio into three pools based on when you'll need the money — cash for the next year or two, bonds for the next three to five, stocks for everything after that — and you're supposed to sleep better through the next downturn because you're never forced to sell stocks at the bottom.

It's one of the most requested topics I get from clients, and it deserves an honest answer rather than a promotional one. The research on buckets is pretty settled, and it's not what most bucket articles lead with. The three-pot structure itself doesn't produce better returns than a plain, rebalanced portfolio holding the same overall mix of stocks and bonds. What actually determines whether a bucket strategy earns its keep is a much narrower decision — the rule you use to refill the buckets. Get that right, and buckets deliver on their promise. Get it wrong, and you've built a more complicated version of a portfolio you could have held anyway.

What the bucket strategy actually is

The modern version traces back to financial planner Harold Evensky in the 1990s, and firms like Raymond James later popularized a similar approach under the name "time segmentation." Christine Benz at Morningstar took it further in the 2010s, publishing sample bucket portfolios that made the idea a staple of DIY retirement planning.

The mechanics are simple enough to explain in a sentence each:

• **Bucket 1 — Safe Money.** Roughly one to two years of spending, held in cash or cash equivalents. This is what pays the bills regardless of what the market did last week.
• **Bucket 2 — Income.** Years three through five, typically bonds. It generates a bit more yield than Bucket 1 while still holding up reasonably well when stocks fall.
• **Bucket 3 — Growth.** Everything beyond a five-year horizon, invested for long-term appreciation since it has time to recover from any single bad stretch.

Money moves from Bucket 3 to Bucket 2 to Bucket 1 over time, and the whole point is that you're never selling stocks to fund next month's groceries.

What the research actually shows

Here's where most articles on this topic stop short. Michael Kitces has written extensively on bucket strategies, and his conclusion is direct: bucketing without a disciplined rebalancing process behind it can actually underperform a simple diversified portfolio held at the same allocation. With rebalancing in place, the two approaches produce results close enough to be functionally identical over most historical periods.

This isn't one advisor's opinion. Finance professor Javier Estrada tested the same question globally — not just U.S. markets, but international data going back to the mid-1960s — and found the same pattern held across countries and time periods. Static allocation strategies matched or outperformed bucket strategies in the majority of scenarios.

None of that means the bucket strategy is a bad idea. It means it isn't a mathematical edge. It's something else, and that something else is worth taking seriously on its own terms.

Where the real benefit lives

The value of a bucket strategy is behavioral, not statistical. It's a mental accounting tool — a way of physically separating "the money I'm about to spend" from "the money I'm growing for later" so that a bad year in the stock market doesn't feel like an emergency.

That distinction matters more than it sounds like it should. The single biggest threat to a retirement plan usually isn't a bad sequence of market returns. It's a client who panics during that sequence and sells stocks at the worst possible moment, locking in a loss that a static portfolio never would have forced. If a bucket structure keeps someone invested through a downturn they would have otherwise bailed out of, it's done its job — even if the underlying math says a rebalanced portfolio would have produced a similar result on paper.

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Buckets don't beat the market. They beat panic. For a lot of retirees, that's the harder problem to solve.

The refill rule decides whether it holds up

This is the part that separates a bucket strategy that actually protects you from one that only looks like it does.

Every bucket approach eventually runs into the same question: when Bucket 1 runs low, where does the refill come from? There are two common answers, and they produce very different outcomes.

The calendar-based version

This one refills on a fixed schedule — every December or January, top Bucket 1 back up from Bucket 2, and Bucket 2 from Bucket 3, regardless of what happened in the market that year. It's simple, but it has an obvious flaw: if stocks are down 20% in December, a calendar rule doesn't care. You're selling into the exact weakness the whole strategy was supposed to protect you from.

The condition-based version

This one ties the refill to what markets are actually doing, and it looks more like a waterfall than a fixed schedule. Consider a hypothetical retired couple, Mark and Denise, with a year of spending in Bucket 1, another year or two already earmarked, and three to five years of bonds sitting in Bucket 2. Markets drop 10% right around the time their usual refill would happen.

• Instead of refilling on schedule, they pause and keep drawing from Bucket 1, since they already have a second year of cash set aside.
• If the downturn drags on for several months and Bucket 1 runs dry anyway, they don't reach for stocks next. They pull from Bucket 2 first, since bonds typically haven't moved nearly as much as equities during the decline.
• Only once markets recover do they go back to Bucket 3, selling growth assets at recovered prices to refill both Bucket 1 and Bucket 2 at once.

There's also a tax dimension: if a refill would push them into a higher bracket in a given year, the sale can often wait until January of the following year rather than forcing the transaction before December 31st.

That's a genuine three-layer shock absorber — cash, then bonds, then stocks, in that order, with each layer only tapped once the one above it is exhausted. It's a meaningfully different experience than a calendar rule that sells stocks on autopilot every year no matter what the headlines say.

Mark and Denise are hypothetical and used for illustration only. This example does not reflect an actual client of Lock Wealth Management and shouldn't be read as a guarantee of any particular outcome.

The overlooked side effect: a rising equity glidepath

There's a wrinkle in bucket strategies that almost never comes up, and it cuts against conventional retirement wisdom in an interesting way.

As Bucket 1 and Bucket 2 get spent down over the years and Bucket 3 keeps compounding untouched, the overall portfolio's equity allocation drifts upward — the opposite of the traditional advice to hold less in stocks as you age. That drift sounds like a problem. Kitces has pointed out that it's effectively an unintentional rising equity glidepath, and separately, research on rising equity glidepaths in retirement has found they can actually improve outcomes compared to gradually reducing stock exposure over time, despite running counter to the instinct that retirees should get more conservative every year.

None of this means more equity exposure is automatically good for every retiree. It does mean that a "flaw" in the bucket approach — not rebalancing back to a fixed stock-to-bond ratio every year — might be doing something useful rather than something careless.

Is the bucket strategy right for you?

If market volatility keeps you up at night, or you've found yourself checking your portfolio balance during every downturn, a bucket structure can give you something a one-line allocation percentage never will: a concrete answer to "where is next year's grocery money coming from" that doesn't depend on what the market did today.

If you're less bothered by volatility and more focused on squeezing out every basis point of long-term return, the research suggests a simpler rebalanced portfolio will get you to roughly the same place with less overhead.

Either way, the structure of the buckets themselves is the easy part. The refill rule is where the real decisions live — how much of a downturn triggers a pause, how far you let a bucket drain before tapping the next one, and how taxes factor into the timing. That's the part worth talking through with someone who can look at your full picture rather than a generic three-bucket template.

Curious whether a bucket approach fits your situation? Let's talk through how you'd handle a downturn before one happens. Book a 15-minute call

Ben Loughery, CFP®, CRPC™, is the founder of Lock Wealth Management, a fee-only fiduciary financial planning firm based in Atlanta, Georgia. Lock Wealth works with retirees and pre-retirees across the United States, virtually and in person.