The Zak Gardezy 4-Stage Methodology for Concentrated Stock, Explained

I am Zak Gardezy, a CERTIFIED FINANCIAL PLANNER™ professional and the founder of Wealthstone Private Wealth Management. Before founding Wealthstone, I was a partner on a multi-billion-dollar advisory team recognized on Forbes' Best-in-State list, and much of my practice has been spent advising executives and stock-plan participants at Magnificent Seven and Fortune 100 companies. The methodology described here is the subject of my book, Secrets From a Wealth Advisor: 4-Stage Methodology for Diversifying Concentrated Stock Tax Efficiently.

This article is the plain-English version of that framework. It exists because the people who search for it, executives with eight-figure equity positions, founders after an IPO, long-term holders with near-zero cost basis, keep encountering the same two pieces of advice: sell it and pay the tax, or hold it and hope. Neither answer is adequate, and the gap between them is where the Zak Gardezy 4-stage methodology lives.

The problem the methodology solves

A concentrated stock position presents twin problems that pull in opposite directions. The concentration itself is a risk problem: a single company, however excellent, carries far more volatility than a diversified portfolio, and history is full of dominant companies that spent a decade underperforming the index they once led. But the obvious cure, selling, is a tax problem. A holder with a large embedded gain who liquidates outright can surrender a third or more of the position's value to federal, state, and net investment income taxes. You can estimate that exposure for your own position in about two minutes.

Most approaches attack one problem and ignore the other. Staged selling over several years spreads the tax bill but leaves the concentration risk in place for years. Holding indefinitely avoids the tax but accepts the full single-stock risk. The methodology I developed treats diversification and tax management as a single integrated engineering problem, using four tools in combination. Not every client needs all four stages, and the sequence varies with the facts. What matters is that the stages are designed to work together.

Stage 1: Exchange funds, diversification without a sale

An exchange fund (sometimes called a swap fund) is a partnership that lets investors holding different concentrated stocks pool their positions. You contribute shares; in return you receive units of the fund's diversified portfolio, which often aims to track a broad index. Structured properly, the contribution is generally not a taxable event. Your original cost basis carries over, and tax is deferred until you eventually sell the securities the fund distributes to you.

The trade-offs are real. Exchange funds typically require a lock-up of around seven years to preserve the tax deferral, and by regulation they generally hold a portion of assets, often at least 20 percent, in illiquid investments such as real estate, which has to be weighed against your existing real estate exposure. Access runs through institutional relationships, and which stocks a given fund will accept changes with the fund's composition. But for a large block of low-basis stock, Stage 1 can convert single-stock risk into diversified-portfolio risk from day one, without triggering the tax bill that a sale would.

Stage 2: Opportunity Zones, deferring the gains you do realize

Most plans still involve selling some shares. Qualified Opportunity Zones, created by the 2017 Tax Cuts and Jobs Act, give realized gains somewhere useful to go. Reinvest a realized capital gain into a Qualified Opportunity Fund within 180 days and, under current rules, federal tax on that gain is deferred. Hold the fund investment for at least ten years and the appreciation on the Opportunity Zone investment itself may be free of federal capital gains tax when sold.

Two cautions belong in the same paragraph as the benefits. First, only the gain portion of a sale qualifies; the return of your original basis is invested elsewhere, typically in Stage 3. Second, Opportunity Zone funds are long-dated, often illiquid, real-asset investments with meaningful execution risk, and the legislation itself continues to evolve. This is a stage where fund selection and tax-filing mechanics matter as much as the concept, and where your CPA needs a seat at the table.

Stage 3: Direct indexing and tax-loss harvesting, building tax assets

Stages 1 and 2 defer taxes. Stage 3 works on the other side of the ledger: it manufactures the losses that can absorb future gains. In a direct indexing account, you own the individual stocks of an index rather than a fund wrapper. The manager's job is to track the index closely while systematically selling positions that trade below cost, realizing capital losses, and replacing them with similar (but not substantially identical) securities to stay invested and respect the wash-sale rule.

Those harvested losses carry forward indefinitely. Over years, they accumulate into a loss bank that can offset the gains produced by the rest of the plan: shares sold deliberately, the deferred Opportunity Zone gain when it comes due, or a hedging structure at settlement. I have written separately about why direct indexing works best when it starts years before the gain it is meant to offset, and about long-short extensions that can substantially increase harvesting capacity for suitable investors.

Stage 4: Hedging and custom products, risk control and liquidity

Whatever concentrated exposure remains during the transition can be protected rather than merely watched. The standard tools are options-based. A collar sells a call option above the current price and uses the premium to buy a put below it, bracketing the position: downside protected below the put strike, upside surrendered above the call strike. A costless collar sets the strikes so the premiums offset.

The more powerful Stage 4 instrument for many clients is the variable prepaid forward. A financial institution pays you a large portion of the stock's value, often 70 to 90 percent, in cash today. In exchange, you agree to deliver a variable number of shares years from now, with the number depending on the stock price at maturity within a floor and ceiling. The result is immediate liquidity, a locked-in minimum value, continued participation in some upside, and, critically, deferral of the capital gain until the shares are actually delivered. Employees of the issuer should note that company policy and securities law can restrict hedging; that conversation happens with the employer's legal department before anything is executed.

The synergy: how the stages fund one another

The methodology is more than a menu. Its value is in the plumbing between the stages. Consider one recurring pattern, simplified and illustrative rather than a prediction of any client's outcome:

• A large block of stock enters an exchange fund (Stage 1): diversified immediately, tax deferred for the lock-up period.
• A variable prepaid forward (Stage 4) converts another tranche into upfront cash without an immediate taxable sale.
• That cash funds a direct indexing account (Stage 3), which begins harvesting losses in its first year, when fresh cost basis makes harvesting most productive.
• Gains realized on shares that are sold move into an Opportunity Zone fund (Stage 2), deferring the tax while the loss bank grows.
• Years later, when the VPF settles and the deferred gains come due, the banked losses from Stage 3 are positioned to absorb a meaningful portion of them.

Notice the specific loop between Stages 4 and 3: the forward's cash proceeds fund the very account whose harvested losses are designed to offset the forward's gain at settlement. The position pays for its own tax management. No element of this is guaranteed, loss harvesting depends on market behavior, and every stage carries costs, eligibility requirements, and execution risk. But the difference between this architecture and a simple schedule of annual sales is the difference between engineering and hoping.

Going deeper

The full methodology, including case studies, monitoring disciplines for each stage, and the questions to ask any advisor who proposes these strategies, is in Secrets From a Wealth Advisor. If you want a number before you want a book, the tax exposure calculator will show you the scale of the problem for your own position, and the concentrated stock planning page describes how Wealthstone runs this process for clients.

One final note on suitability. These are institutional strategies with minimums, lock-ups, and complexity. For most investors below roughly $5 million in a single position, simpler approaches usually make more sense. Above that line, the potential tax and risk consequences are large enough that the cost of getting the sequence wrong typically dwarfs the cost of advice.

Zak Gardezy, CFP®

Zak Gardezy is the founder of Wealthstone Private Wealth Management and the author of Secrets From a Wealth Advisor, the book behind the 4-stage methodology for diversifying concentrated stock tax-efficiently. A CERTIFIED FINANCIAL PLANNER™ professional and former partner on a Forbes Best-in-State, multi-billion-dollar advisory team, he advises executives and equity holders at Magnificent Seven and Fortune 100 companies. He writes these briefs for people facing a stock sale, a retirement date, or a business exit.

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