Exchange Funds and Long-Short Equity: Two Strategies for a Concentrated Stock Position

By Trevor Scotto, CPA, CFP®

Last updated: September 2026

This article is for educational purposes only and does not constitute individualized tax, legal, or investment advice. Tax laws are subject to change. The impact of any strategy depends on your specific income, tax situation, cost basis, liquidity needs, and broader financial circumstances. Consult your own tax and legal advisors before acting on anything described here.

Concentrated employer stock needs a different playbook because a large single-stock position ties a person's net worth, and often their income, to one company. Exchange funds and long-short equity are two strategies that seek to reduce that risk without an outright sale.

Tech professionals and executives who receive RSUs, stock options, or other equity compensation often end up with a large share of their net worth tied to one employer's stock. That concentration can create meaningful risk: if the company's shares decline, a client's retirement timeline, liquidity, and financial goals can be affected all at once.

Selling shares outright is the simplest way to reduce that risk, but it isn't always the right fit. A large sale can trigger a significant capital gains tax bill, and some clients want to stay invested in the company they helped build. Two strategies worth understanding are exchange funds and long-short equity strategies. Each takes a different approach to managing concentrated stock risk, and each comes with its own trade-offs.

An exchange fund lets an investor contribute concentrated shares to a pooled vehicle in exchange for a proportional interest in a diversified portfolio, generally without an immediate sale or tax bill. In return, investors typically accept a multi-year lock-up, often seven years or more, and eligibility limits.

An exchange fund (sometimes called a swap fund) lets an investor contribute concentrated shares to a pooled investment vehicle in exchange for a proportional interest in a diversified portfolio contributed by other investors. Because the transaction is generally structured under Internal Revenue Code Section 721, the capital gains tax that would otherwise be due on a sale may be deferred rather than triggered immediately.

Exchange funds typically come with conditions that matter to a planning conversation:

• The ideal holding period is 7 years or more, which allows shares to be exchanged for a diversified basket without losing the tax deferral.
• Illiquidity during that holding period. Capital contributed to the fund generally cannot be accessed on short notice.
• Eligibility limits. Exchange funds are typically offered as private placements to accredited investors or qualified purchasers, with minimum investment amounts that put them out of reach for many investors.
• Ongoing fund fees, which vary by provider and should be weighed against the value of the tax deferral.

Exchange funds generally allow for early redemption before the seven-year period ends, though doing so may involve an early redemption fee. Early redemption typically means receiving back the original concentrated stock rather than a diversified basket, which may limit the practical benefit of having entered the fund in the first place.

Investors who hold through the full period, generally seven years or more, typically receive a diversified basket of individual stock positions when they exit the fund, rather than cash or a single security. The tax basis in the original contributed shares generally carries over to the distributed positions, which is part of how the tax deferral is structured under the IRC Section 721 framework.

An exchange fund may be worth considering for investors who want diversification as soon as possible, who do not want to trigger a tax bill immediately, and who are comfortable with a strategy that defers a tax liability rather than eliminating it. It is generally not a fit for investors who anticipate needing liquidity in the next several years or who are not comfortable pushing a tax obligation further into the future.

A long-short equity strategy holds long positions in favored stocks alongside short positions in stocks the manager expects to underperform, seeking to reduce, not eliminate, exposure to broad market swings and to a specific concentrated holding. The strategy does not use options; it relies on ordinary long and short stock positions.

A long-short equity strategy gives a portfolio manager more flexibility than a traditional stock-only portfolio. Instead of only buying companies the manager believes will perform well, the manager can also take a position against companies the manager believes may underperform. The goal is to seek to benefit from both strong companies doing well and weaker companies falling behind, though there is no assurance either will happen.

How Does It Work?

The manager generally takes two types of positions:

• Long positions: investments in companies the manager expects to increase in value.
• Short positions: positions taken against companies the manager expects to decline in value or underperform.

In simple terms, the manager invests in the companies they favor and takes a position against the companies they do not. Cash generated from short positions is typically held as collateral by the broker, though depending on how the strategy is structured, it may also help support additional long positions.

Why Consider a Long-Short Strategy for Concentrated Stock?

Traditional stock portfolios generally depend on the broader market rising over time. A long-short strategy gives a manager another way to seek to add value, by identifying potential underperformers alongside potential winners. In a concentrated-stock context, this might take the form of a completion portfolio designed to counterbalance the sector, size, or style exposure of the concentrated stock.

That does not mean the strategy is low risk. The manager can still lose money if the long positions decline, the short positions rise, or the investment decisions turn out to be wrong. Short positions also involve borrowing costs and additional complexity.

Considerations Before Using a Long-Short Strategy

• Short positions introduce their own costs, including borrowing costs and potential margin requirements.
• The strategy is designed to reduce, not eliminate, the risk associated with a concentrated position. It does not guarantee protection against a decline in the stock.
• These strategies generally require ongoing monitoring and rebalancing and are typically implemented through a separately managed account rather than a one-time transaction.

Long-short strategies may appeal to clients who want to retain their shares, whether for control, vesting schedules, or other reasons, while seeking to reduce some of the day-to-day volatility tied to a single stock.

Exchange funds and long-short equity solve the same problem, concentrated single-stock risk, through very different mechanics, tax treatment, and liquidity trade-offs. The table below summarizes the key differences side by side.

Exchange Funds vs. Long-Short Equity: Side-by-Side Comparison

Feature	Exchange Fund	Long-Short Equity
Mechanism	Contribute concentrated shares to a pooled fund for a proportional interest in a diversified portfolio, generally under IRC Section 721	Manager holds long positions in favored stocks and short positions in stocks expected to underperform; does not use options
Tax treatment	Generally defers, rather than eliminates, capital gains tax on the contributed shares	Ordinary buying and selling of securities; tax treatment depends on how the strategy is implemented
Liquidity	Multi-year lock-up, typically seven years or more, before exiting without penalty	Implemented through a separately managed account with more day-to-day flexibility, though it still requires ongoing monitoring
Eligibility	Generally limited to accredited investors or qualified purchasers, with high minimum investments	Generally available to eligible advisory clients without accredited investor thresholds
Primary risk	Illiquidity during the lock-up and a deferred, not eliminated, tax liability	Manager selection risk, and short positions carry borrowing costs and potential loss if shorted stocks rise
May fit best for	Investors who want diversification without an immediate tax bill and can accept a long lock-up	Investors who want to retain their shares while seeking to reduce day-to-day volatility, without a multi-year lock-up

Neither strategy is a universal answer. The right approach, if any, depends on factors including a client's liquidity needs, time horizon, tax situation, risk tolerance, and reasons for holding the stock. Some clients may find that a straightforward, phased selling plan fits their situation better than either alternative.

Because Fiduciary Financial Group is a fee-only, fiduciary firm, we don't sell exchange fund interests or receive compensation for recommending a long-short strategy. Our CPA and CFP® team can help model the after-tax outcomes of each option side by side, so the choice reflects a client's full financial picture rather than a product being sold.

Choosing between an exchange fund, a long-short strategy, or a phased selling plan touches investment planning and tax planning at the same time, so the decision benefits from a CPA and an advisor working from the same information rather than evaluating tax and investment questions separately.

Decisions about a concentrated stock position touch investment planning and tax planning at the same time. A CPA on the planning team can help evaluate the tax mechanics of an exchange fund contribution or a hedge structure, while the wealth management side can help evaluate whether the diversification benefit justifies the cost and complexity involved.

"The biggest mistake we see with equity compensation is making tax decisions in isolation. The tax treatment matters, but it is one input alongside concentration risk, liquidity needs, and your broader financial plan."

If you hold concentrated employer stock and want to explore how these strategies may fit your broader plan, we invite you to review our equity compensation planning approach, our investment management philosophy, and our tax planning and mitigation services. We also encourage you to schedule a conversation with our team.

Exchange funds and long-short equity are two tools within a broader framework we call PROTECT, which weighs philanthropy, retaining shares, options, tactical long-short, exchange funds, custom indexing, and tranche selling together against a client's cost basis, timeline, and goals.

Given the number of ways to approach a concentrated position, and how quickly the right combination can change with someone's goals, tax situation, and time horizon, we work through a structured framework internally that we call PROTECT. It is not a formula that applies the same way to every client, and using more than one part of it at once involves trade-offs that should be weighed against a client's full financial picture.

• Philanthropy: Donor-advised funds and charitable remainder trusts can allow appreciated shares to be gifted directly. Doing so may help avoid recognizing a capital gain on the shares given and may support a charitable deduction, depending on individual tax circumstances.
• Retain: In some cases it may make sense to continue holding shares with intent, whether that means borrowing against the position for liquidity or holding with an eye toward a potential step-up in basis, while still working to manage the risk that comes with a single-stock position. Borrowing against concentrated stock carries its own risks, including the possibility of a margin call if the stock declines.
• Options: Protective collars and covered calls are option strategies that may help establish a floor under a position or generate premium income while a decision is made. These strategies also cap potential upside and involve their own costs and risks, and are not available or appropriate for every client.
• Tactical Long/Short: A long-short strategy, described earlier in this article, may be used to help generate losses that can offset gains recognized elsewhere as a concentrated position is reduced. This approach involves the complexity, cost, and risk of loss described above.
• Exchange Funds: As described above, an exchange fund is generally structured under Section 721 of the Internal Revenue Code to defer, not eliminate, the tax that would otherwise be due on a sale.
• Custom Indexing: A direct-indexing account can harvest losses position by position over time, which may help build a reserve of realized losses to help offset gains recognized as a concentrated position is reduced.
• Tranche Selling: A pre-set 10b5-1 trading plan can be used to sell shares according to a fixed schedule set in advance, which is designed to reduce discretionary, in-the-moment decisions about when to sell.

Which parts of the PROTECT framework, if any, make sense for a given client depends on factors including liquidity needs, tax situation, charitable intent, risk tolerance, and the overall financial plan. Our CPA and CFP® team works through these considerations together, so tax and investment decisions are coordinated rather than made in isolation.

Is an exchange fund the same as an index fund?

No. An exchange fund is a private, typically multi-year investment vehicle designed to let investors swap concentrated stock for a diversified interest in a pooled portfolio. Index funds are publicly available, liquid investment vehicles with no lock-up period.

Do I have to be an accredited investor to use an exchange fund?

Most exchange funds are offered as private placements and generally require investors to meet accredited investor or qualified purchaser standards, along with a substantial minimum investment. Eligibility requirements vary by fund provider.

Can a long-short strategy fully protect me from a stock decline?

No. A long-short strategy is designed to help offset some of the risk of a concentrated position, but it cannot eliminate that risk or guarantee a specific outcome. Costs, structure, and market conditions all affect how much protection the strategy provides.

Will using an exchange fund or a long-short strategy trigger taxes?

It depends on how the strategy is structured. Exchange funds are generally designed to defer capital gains taxes under Section 721 of the Internal Revenue Code. Long-short strategies involve ordinary buying and selling of securities and generally do not carry the same tax deferral; the tax treatment depends on how the strategy is implemented. A CPA should review the specific structure before it's implemented.

How do I know which strategy fits my situation?

It depends on individual factors such as liquidity needs, time horizon, risk tolerance, tax situation, and reasons for holding the stock. A CPA-integrated financial planning conversation can help weigh these trade-offs side by side.