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How Tax-Aware Long-Short Strategies Help Diversify Concentrated Stock
If you are an executive or founder, a concentrated stock position is often the result of success. It can reflect years of hard work, belief in your company and a compensation structure built around equity. Over time, that equity can grow into a significant portion of your net worth.
In many cases, the good news is that some of your investments have appreciated significantly. The challenge is that a large share of your wealth may now be concentrated in just a few holdings. What once felt like upside potential can begin to feel like too much risk with a massive tax burden. Then, a big question surfaces: how do you reduce risk and diversify a concentrated stock position without triggering a substantial capital gains tax bill?
Selling shares may be financially prudent, but stomaching the large tax bill could be painful. This tension between diversification and taxation is one of the most common planning challenges we see among equity-compensated professionals. It’s rarely just a technical question. It’s about protecting what you have built while positioning your wealth for the future.
Tax-aware long-short strategies have gained attention as one effective tool for navigating this challenge. Under the right circumstances, it may help diversify concentrated wealth while managing the timing of capital gains.
Because this approach can be complex, explanations you find online may not always capture the full picture. Deciding whether they make sense often requires evaluating them alongside your tax situation, liquidity needs and long-term financial goals. In many cases, that kind of evaluation is best done with an experienced financial and tax advisors.
The challenge of concentrated stock positions and capital gains
Concentrated stock positions can build over time through company ownership, equity compensation or the growth of a single investment. However it happens, one holding can eventually represent a large share of your net worth. The larger the position becomes, the more your financial picture may depend on the fortunes of one company.
Selling highly appreciated shares may reduce that concentration, but it can also trigger a substantial capital gains tax bill. That can leave you balancing two reasonable concerns. Holding the position may begin to feel increasingly risky, while selling it can feel unnecessarily costly. As a result, many executives and entrepreneurs explore ways to diversify gradually while managing the potential tax consequences.
One sophisticated tool: Tax-aware long-short strategies
One approach that has gained attention in recent years is the use of tax-aware long-short portfolios, which build on traditional tax-loss-harvesting methods used for many years in direct indexing. Historically, these approaches were primarily available to institutional investors and ultra-high-net-worth families. Over time, advances in trading technology and portfolio construction have made some versions more accessible to a broader group of investors.
Today, several investment managers offer tax-aware long-short portfolios designed to help some investors diversify highly appreciated stock positions. However, availability, account minimums, leverage options and eligibility can vary substantially by manager, custodian and account structure. Firms such as AQR and Quantinno have developed approaches in this area, along with other institutional asset managers focused on tax-aware portfolio construction.
Even so, these remain sophisticated tools. They are typically used as one component of an investment plan rather than as a complete solution. At a high level, the portfolio seeks to generate capital losses that may help offset gains from selling appreciated holdings. This may allow an investor to reduce concentration while managing the timing of capital gains. The goal isn’t to eliminate taxes, but to coordinate diversification and tax timing with your other financial decisions.
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As with any sophisticated approach, it’s important to discuss it with an experienced tax and financial advisor on how it may fit within your financial plan. Aspiriant regularly evaluates approaches like this for the individuals and families we serve with concentrated wealth.
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How tax-aware long-short works
At a high level, a tax-aware long-short portfolio combines long and short positions to create opportunities for capital losses within a diversified portfolio. Those losses may help offset some capital gains that arise when you sell a concentrated position. A simplified version of how this process may work is shown below:
| Step | What happens |
| 1. Sell concentrated stock | Creates capital gains |
| 2. Invest in a tax-aware long-short portfolio | Portfolio may generate both gains and losses |
| 3. Realize losses within the portfolio | Losses may offset gains from the stock sale |
| 4. Result | A more diversified portfolio and the potential to defer some taxes |
Using tax-loss harvesting to offset gains
The basic premise is straightforward. When you sell an investment for a gain, taxes are typically due unless you also have capital losses from other transactions in the same tax year that can offset that gain. Tax-aware long-short portfolios are designed to create opportunities to realize capital losses that may offset gains elsewhere in the portfolio or from the sale of concentrated stock, subject to applicable tax rules. By holding positions on both sides of the market, the portfolio may generate gains and losses whether markets rise or fall.
In this context, the term “long” simply means owning shares of a company and benefiting when the share price rises. “Short” refers to selling shares you do not currently own in order to benefit if the share price declines. These terms describe how the positions behave, not how long they are held.
The investment manager is making decisions to buy long stock in companies they expect to outperform and look to sell short companies they expect to underperform. Many separately managed account structures may offer more flexibility than traditional private funds, but withdrawal procedures, trading windows and account terms vary. Therefore, we encourage you to confirm these details before opening an account.
This structure may create opportunities for gains and losses in different market environments, but it does not ensure positive returns or tax losses in any particular period. In practice, the investor may replace exposure to one highly appreciated holding with a mix of investments. Any capital gains tax is not eliminated, but recognition may be deferred until the new holdings are sold.
Some investors continue holding highly appreciated assets because assets passed to heirs may receive a step-up in cost basis at death, potentially reducing capital gains taxes for the next generation. Others may decide that reducing concentration during their lifetime is more important than preserving that possibility. The appropriate choice depends on your goals, time horizon, estate plan and tax situation.
Implementation considerations and tax rules
Long-short portfolios have been used for many years. Advances in trading technology have significantly reduced transaction costs, which has helped make some versions more accessible.
Another characteristic is that income from many of these accounts is reported on IRS Form 1099, just like any other brokerage account. The amount of trading and different types of income and expenses can make the Form 1099 more complex than a traditional brokerage account. However, they are far more straightforward and can simplify tax reporting compared with some hedge fund structures that issue Schedule K-1 filings, which are often delivered later in the tax season and may require investors to extend their returns.
Of note, the IRS has rules to watch for in setting up these accounts:
- First, selling a stock at a loss and buying the same one within 30 days is called a wash sale. This wipes out the favorable tax treatment.
- You also need to be careful that you don’t short a stock that you own long in a different account. This falls under the constructive sale rules which would trigger the gain on the shares you own.
As a result, long-short investors need to be mindful of all relevant transactions and shares they own in all their taxable accounts or set up rules to avoid conflicting trades. All in, be careful using these accounts if you own individual stocks in a different account. And it’s always recommended to consult your tax advisor prior to implementing this idea.
Advanced planning: Using prepaid variable forwards (PVFs)
Some investors may want liquidity and downside protection while retaining partial participation in a stock’s potential upside. In those situations, more advanced planning tools may be considered. For example, a prepaid variable forward (PVF) contract, sometimes called a variable prepaid forward (VPF), may be used alongside other diversification strategies.
These contracts can help limit downside risk in a concentrated stock position while also providing liquidity. A PVF typically establishes a “floor price” on the stock and provides a loan based on that value. In exchange, a “ceiling price” is set, meaning the investor participates in the stock’s upside only up to that level.
The loan from the PVF, often referred to as the upfront credit, could then be used to fund a diversification portfolio designed to harvest losses over time. Combining the two tools may help address liquidity, concentration and tax timing, but it also adds complexity and risk.
Because these structures are complex and must comply with specific tax rules, implementing them requires careful coordination with experienced financial and tax advisors.
Remember that this approach generally defers taxes rather than eliminate them. If positions within the portfolio are eventually sold without additional planning, gains may still be realized. The decision to use a long-short portfolio should therefore be considered alongside your tax, estate and liquidity needs.
When it may make senseTax-aware long-short strategies may be worth exploring if you:
A longer time horizon may also be important because the potential tax benefits and diversification effects develop over time. Real-World ExampleWe often work with executives whose equity compensation has grown into several million dollars of highly appreciated stock concentrated in one or two companies. After a period of market volatility, they may want to reduce that concentration but hesitate to sell because doing so could trigger a significant capital gains tax bill. In situations like this, a tax-aware long-short approach may help diversify a portion of the position while managing the timing of taxes. |
Where it may fall shortLike any sophisticated investment approach, tax-aware long-short portfolios involve trade-offs. Some considerations may include:
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Explore more: What to Do with Stock Options: When to Exercise & Tax Planning Strategies
How it fits into your diversification plan
A tax-aware long-short portfolio can be a helpful tool if you are managing a concentrated stock position. But it is rarely the only consideration. Other approaches may include direct indexing, exchange funds, options-based hedging techniques or estate planning tools such as charitable giving or family gifting. The right mix depends on your goals, your time horizon and your tax situation.
In our experience, conversations about investing often include what might be called the idea of the moment. Certain tools become widely discussed for a period of time. They show up in articles, at conferences and sometimes even in “cocktail party talk.”
Those tools can certainly have value. But like many sophisticated approaches, the question is often not simply whether it works but whether it fits within your long-term financial plan. That’s where thoughtful planning comes in. Reducing concentrated wealth may involve coordinating investment, tax, estate and charitable decisions over time rather than relying on one solution. The objective is not simply to reduce taxes in a given year, but to make decisions that fit the life and priorities your wealth is meant to support.
As a firm that is 100% employee-owned, that long-term perspective is central to how we approach this work. The people advising you today are invested in the future of the firm and in the relationships we build with individuals and families across generations.
Frequently asked questionsWhat is a tax-aware long-short strategy?A tax-aware long-short strategy is an investment approach designed to help you diversify a concentrated position while managing the timing of potential gains. It typically combines long positions, which may benefit when stock prices rise, with short positions, which may benefit when prices fall. The portfolio may generate gains and losses, but it does not guarantee positive returns or tax losses. Any tax benefits depend on the specific portfolio, market conditions, account activity and your individual tax situation. These approaches generally defer taxes rather than eliminate them. Can I diversify concentrated stock without paying capital gains right away?In many cases, you cannot completely avoid capital gains taxes when selling highly appreciated stock. However, certain approaches may help manage when those taxes are recognized. Tax-aware long-short portfolios are designed to provide diversified market exposure while using tax-loss-harvesting techniques to generate capital losses within a portfolio. Those losses may offset gains from selling concentrated positions, which may allow you to defer some of the tax impact while diversifying your holdings. Who might benefit from a tax-aware long-short strategy?You may consider this type of approach if you hold large, highly appreciated assets in taxable accounts and want to diversify without the tax consequences of realizing all gains in the same year. It may be particularly relevant for executives, founders and professionals whose wealth includes concentrated stock positions. Because of minimum investment requirements and the complexity involved, they are typically most appropriate for larger portfolios and are usually implemented as part of your holistic wealth plan. How much do tax-aware long-short strategies typically require to invest?The amount needed depends on the investment manager, custodian, account type and level of leverage. Because these requirements can change, investors should confirm the current minimum, account eligibility and leverage limits before investing. Are tax-aware long-short strategies similar to hedge funds?Tax-aware long-short strategies use some techniques that have historically been associated with hedge funds, such as holding both long and short positions in stocks. However, many modern separately managed account portfolios are designed to be more accessible and transparent than traditional hedge fund structures. Some report tax information on IRS Form 1099 rather than Schedule K-1 filings, which may simplify tax reporting for you. Even so, these strategies remain sophisticated investment tools and are typically implemented within your broader portfolio plan. What are the risks?Like any investment approach, tax-aware long-short portfolios involve trade-offs. These strategies often have higher costs than traditional long-only investments. Performance may differ from broad market benchmarks because the portfolio relies on active stock selection. Shorting stocks has unique risks many investors are unfamiliar with, such as margin calls or a sudden change in custody fees. For this reason, it is important to utilize managers with meaningful experience navigating these risks in a balanced approach. In addition, the tax benefits you experience will depend on portfolio performance, trading activity, market conditions and how the portfolio is managed over time. A tax law change could materially alter the tax benefits available to you. What happens to the taxes later?Tax-aware long-short strategies generally defer capital gains rather than eliminate them. If losses generated within the portfolio offset gains from selling appreciated assets, the tax liability may be postponed. However, when positions within the long-short portfolio are eventually sold, gains may still be realized. For this reason, consider how this approach fits within your financial plan, including any charitable, estate planning or other tax management decisions. Can tax-aware long-short strategies offset salary or bonus income?Generally, no. Losses generated within tax-aware long-short portfolios are typically used to offset capital gains. They usually cannot be used to offset ordinary income such as salary or bonuses. If you are interested in ideas that address different types of income, it may be helpful to discuss your options with your financial and tax advisors. |
How can we help?
If you’re navigating a concentrated stock position and considering your options, talk with us. For decades, our team has collaborated closely with entrepreneurs, executives and professionals who often face the same challenge of balancing diversification and taxes. We work with individuals and families across the country navigating similar planning decisions, including many in technology and innovation hubs such as San Francisco, Los Angeles, Silicon Valley, New York and Austin.
Together, we explore options that align with your financial goals, not just the investment idea of the moment. Our approach combines long-term thinking with personalized execution, helping you consider whether, when and how to reduce concentration.
Disclosure: This article has been updated since its original March 16, 2026 publish date.
