Every long-term return model assumes you stay invested the whole time.
The compounding math is brutal — a portfolio doubling roughly every seven years at 10%, tripling at 15%, hitting 8× to 12× over a 20- to 30-year career if left alone. That’s the beauty of the curve. It’s also the trap.
Because the math of breaking that curve is just as brutal, in the other direction. Every interruption resets the clock. Every early exit removes years of tail-end compounding. Every jump between strategies costs friction, tax, and time. And the investors most likely to interrupt themselves are usually the smartest, most successful people in the room.
Interrupted compounding is the fourth wealth leak in the framework, and unlike the other three, it’s usually self-inflicted. I’m including myself in that — I’ve done it too. What follows is the pattern I see over and over in high-income households and business-owner portfolios, plus the structural counter-example most financial media never covers.
Long-running research on investor behavior — best summarized in Morningstar’s annual “Mind the Gap” study — has consistently shown that the return the average investor actually captures is meaningfully lower than the return of the funds they invest in.
The delta is not because the funds underperformed. The funds did fine.
The delta is because investors bought high and sold low across their own holding periods. They chased performance on the way in, panicked on the way out, and repeated the cycle across strategies for years or decades. The gap between market returns and investor returns has been measured in the neighborhood of 1–2% annually — which sounds small until you compound it over 30 years and realize it can be worth seven figures on a serious portfolio.
That’s the retail version of the interrupted-compounding leak. The private-market version is worse, because the friction of interrupting a private investment is orders of magnitude higher than clicking “sell” on a mutual fund.
Across the high earners and operators I work with, the same four behaviors show up over and over. Every one of them looks reasonable in the moment. Every one of them costs real money in the long run.
You sell — or bail out of a capital commitment — because the news cycle scared you. Rate hike. Election. Recession chatter. A regional bank wobble. Something in the headlines makes your position feel exposed, and you move.
The problem: news cycles are designed to keep you engaged, not to help you build wealth. And private investments in particular are structurally insulated from most of what the news cycle covers. Selling a stabilized commercial real estate position because CNBC ran a scary segment about the “office market” is a category error — but it’s an error smart people make regularly.
You hate writing checks to the IRS. Someone shows you a strategy that promises a large first-year deduction. You wire the capital because the tax math looks so attractive you can’t stand to leave it on the table.
What you didn’t do: understand the underlying deal. The tax benefit was real. The deal was mediocre. Two years in, the deal underperforms, the write-off gets partly recaptured at exit, and the whole thing nets to a break-even at best.
This is where I have to name the rule I put in every conversation I have on this topic:
A tax benefit can make a good deal better.
It cannot make a bad deal good.
That one line has saved more of my investors from expensive mistakes than any other single principle in my framework. The tax tail cannot wag the investment dog. If the deal doesn’t stand on its own, no amount of accelerated depreciation, cost segregation, or intangible drilling cost deduction is going to fix it.
Someone you trust — a colleague, a friend, a fellow business owner who has done well — mentions a deal they’re in. Your brain shortcuts: “They’re smart. They wouldn’t be in it if it wasn’t good. I don’t want to miss what they’re in.”
You wire in. You didn’t underwrite the sponsor. You didn’t read the PPM. You didn’t stress-test the debt terms. You didn’t ask what the waterfall does to your LP position. You piggybacked on someone else’s due diligence — which may or may not have actually happened on their end either.
Sometimes it works out. Often it doesn’t. And when it doesn’t, the failure quietly interrupts the compounding you’d otherwise have gotten from a filtered, deliberately-chosen position.
You do a real estate deal because real estate was hot at the time. Then you buy a life insurance policy because someone convinced you it would solve everything. Then you jump into private credit because the yield looks great. Then you put money into oil and gas because someone at a dinner mentioned the tax benefits. Then you get pitched an equipment leasing structure and add that.
Individually, every one of those can be a legitimate investment. Collectively, without a coherent capital system underneath them, they become a portfolio of disconnected bets — impossible to manage, impossible to rebalance, impossible to understand as a whole. And nearly impossible to compound cleanly.
The insidious thing about interrupted compounding is that every individual interruption looks responsible. You didn’t do anything reckless. You reacted to information. You took a tax benefit. You listened to a smart friend. You added diversification.
Retail financial media reinforces this by treating action as virtue. Every headline is designed to make you feel like you should be doing something. The story that “the best move right now might be no move” doesn’t drive engagement.
So the investors who interrupt compounding are usually doing so “responsibly” — which is exactly why the pattern is so hard to see from the inside. Nobody wakes up thinking, “today I’m going to interrupt my compounding.” They wake up thinking they’re being prudent, informed, and engaged. And the returns quietly slip.
Here’s a structure worth studying if you want to see what uninterrupted compounding actually looks like: a properly designed whole life insurance policy from a mutual company.
I don’t lead with this on the fund side of what I do — most of what I write about is private market deal flow through the SMART Flex Fund. But it’s worth talking about here because it’s the cleanest illustration of the principle I know. The math of what the contract does is worth seeing regardless of whether it fits your specific situation.
What a well-structured whole life policy delivers, mechanically:
Set that against everything I described above about how investors interrupt themselves. In a properly designed policy, the compounding cannot be interrupted by news cycles, panic, or the temptation to chase a shinier strategy — because the contract itself removes the ability to interrupt without unwinding the whole policy. You can access the capital via loans and keep the compounding intact. That’s the whole architectural point of the vehicle.
I want to be careful about how I frame this: I’m not saying whole life insurance is the answer to interrupted compounding for every investor. Design matters enormously — the overwhelming majority of policies sold in the retail market are not designed for cash-value performance. And it’s a long-term contract with surrender charges and costs that vary by policy and carrier. Any real conversation about this needs to happen with a licensed insurance professional who understands the difference between commodity retail whole life and a policy engineered for cash-value performance.
But as an illustration of the principle — that a structure can be designed to make interrupted compounding literally impossible — it’s the cleanest example I know.
Structural safeguards can also be built into private-market investing directly. The reason I designed the SMART Flex Fund the way I did is that most of the “interruption” I see in private deals comes from misalignment between the sponsor and the LP.
A few of the specific rules I follow:
Those aren’t marketing points. They’re structural choices designed to remove the leaks that break compounding in most private-market portfolios.
The behavioral fix is not to become passive. It’s to create rules before emotion takes over. Before you exit a position, before you wire into a new deal, before you jump to a new strategy — write down the answers to these questions, in advance:
Rules written in a calm moment survive market panic and dinner-party pitches in a way that gut instinct does not. That’s the entire point. You are not building rules to constrain your future self out of malice. You’re building them because your future self, in the middle of a news cycle or after a persuasive lunch with a friend, will not think as clearly as you can right now.
Come back to the four leaks. Tax drag reduces the capital that gets deployed. Idle capital delays deployment. Weak deal access steers what capital does get deployed into worse opportunities. And interrupted compounding breaks the plan before any of it has time to work.
Of the four leaks, this last one is the most preventable — because the fix is not a product, a structure, or a new strategy. The fix is a discipline. And it’s a discipline that gets easier once you’ve named it, written down your rules, and set up structures (like properly designed contractual vehicles, or a filtered fund with aligned economics) that make interruption harder in the first place.
Wealth isn’t built by the person who found the perfect deal. Wealth is built by the person who let their portfolio compound for 20 years without breaking it.
A short self-assessment to see where you actually stand as an alternative-investment-ready accredited investor — and which of the four wealth leaks (including your behavioral patterns around exit, entry, and strategy-hopping) is most likely draining your compounding right now. Free, ~5 minutes.
Disclaimer: This article reflects the personal experience and opinions of Kent Leach and Hickory Creek Capital Partners. It is not tax, legal, investment, or insurance advice. Always consult a qualified CPA, attorney, financial advisor, and licensed insurance professional before pursuing any private investment, tax strategy, or insurance strategy. Past performance does not guarantee future results. Cash-value life insurance is a long-term contract with costs, risks, and surrender charges that vary by policy and carrier; policy loans reduce the death benefit and cash surrender value. Private fund investments are limited to accredited investors and involve substantial risk, including total loss of principal.