Written by Jessica Cutrera and Jelmer Kattevilder I 21 August 2026 I 11 minutes read
Investors living in jurisdictions with capital gain taxes, who own a large position in a single stock often face a difficult trade-off. Selling is desired to reduce concentration risk [1], but it may also trigger significant capital gains taxes. Direct indexing can help create a more tax-efficient path toward diversification [2] while maintaining broad market exposure.
A concentrated stock position is often the result of success. It may originate from founder shares, equity compensation, an inheritance, or years of strong investment performance. While these holdings can create substantial wealth, they can also leave a portfolio heavily dependent on the future fortunes of a single company.
Many investors recognize the risk but hesitate to diversify. The primary obstacle is often the tax liability. Selling appreciated shares may trigger a substantial capital gain, making it financially and psychologically difficult to reduce exposure. This is where direct indexing may offer an additional source of flexibility.
What is Direct Indexing?
Direct indexing provides index-like exposure through individually owned securities. The portfolio is built around a benchmark, monitored for positions with embedded losses, and rebalanced [3] with similar replacement holdings so that market exposure remains broadly consistent. For investors with larger embedded gains and concentrated stock positions, a long-short extension may accelerate loss-harvesting opportunities, but it also introduces leverage, short-selling, financing, and implementation risks.
This distinction matters for tax management. Even when the index is positive overall, some individual holdings may trade below their purchase price. Selling selected positions can realize tax losses while replacement securities are used to maintain the portfolio’s intended market exposure, subject to applicable tax rules.
Why Concentrated Positions Create Challenges?
A large single-stock holding can expose an investor to company-specific, sector, and employment-related risks. For executives, financial capital and human capital may be tied to the same company at the same time. A disappointing earnings report, regulatory change, competitive setback, or shift in market sentiment can therefore affect several parts of the investor’s financial life simultaneously.
Yet an immediate sale may not be practical. In addition to taxes, investors may face trading windows, lockups, emotional attachment, charitable intentions, or a desire to retain some future upside. A gradual approach can help reconcile these competing considerations.
How Direct Indexing can Support Diversification
Tax losses harvested from a direct indexing portfolio may be used to offset realized capital gains, subject to the investor’s circumstances and applicable rules. This can help reduce the tax cost of selling portions of an appreciated position over time.
A typical multi-year process may involve:
- Selling a portion of the concentrated holding according to a disciplined schedule,
- Reinvesting the proceeds into a diversified direct indexing portfolio,
- Harvesting available losses within that portfolio as market prices fluctuate,
- Using realized losses to help offset gains from current or future stock sales, and/or
- Repeating the process while monitoring taxes, risk, liquidity, and portfolio objectives
The process does not eliminate tax or investment risk. It is designed to create more opportunities to manage both as the investor transitions toward a broader portfolio.
Coordination Across Accounts
The process should be coordinated across the investor’s taxable accounts because purchases elsewhere can interfere with intended tax outcomes. Advisers should also review anticipated capital gains, charitable gifts, cash needs, trading restrictions, and the investor’s tax filing requirements before setting the next round of concentrated-stock sales.
Rebalancing and Gain-budget Management
Harvesting decisions are balanced against tracking risk, transaction costs, portfolio restrictions, and the tax consequences of replacement trades. The manager also rebalances the portfolio as index weights, prices, and the investor’s circumstances change. Realized losses can create a tax budget that may support scheduled sales of the concentrated holding, while realized gains inside the direct indexing portfolio are generally managed deliberately rather than generated without regard to the broader transition plan.
Ongoing Monitoring and Loss Harvesting
Once invested, the portfolio is monitored at the individual security level. When a holding trades below its tax basis and the expected benefit is sufficient, it may be sold to realize the loss. The proceeds are reinvested in another similar security while observing applicable wash-sale rules. This allows the portfolio to remain invested rather than moving the harvested amount to cash.
Funding and Transition
The account may be funded with cash, proceeds from an initial stock sale, transferred securities, leverage, or a combination. Existing holdings are reviewed before trading so that the transition takes account of embedded gains, overlapping exposures, and the investor’s tax budget. The concentrated stock can remain in a separate sleeve or be incorporated into the total risk analysis so that the new portfolio does not unintentionally add more of the same company or the same sector exposure to achieve the desired diversification.
From Benchmark to Managed Portfolio
The process begins by selecting a reference index and defining the investor’s constraints. These may include excluding the concentrated company, limiting exposure to the employer’s sector, retaining selected securities, or applying other portfolio restrictions. The manager then constructs a basket of individual stocks intended to provide diversified exposure while keeping expected differences from the benchmark within an agreed range.
A Practical Investment Cycle
- Define the benchmark and restrictions
- Build the individual stock portfolio
- Monitor tax lots for losses
- Sell selected loss positions and purchase suitable replacements
- Use the realized-loss budget to support sales of the concentrated stock
- Rebalance and repeat as markets and client needs change
A Practical Example
Consider an executive whose employer stock represents 30% of net worth. Selling the entire position immediately could create a significant taxable gain. Instead, the investor might establish an annual sale target and reinvest the proceeds in a direct indexing strategy.
During the year, securities in the direct indexing portfolio that decline below their cost basis may be sold to realize losses. Those losses may then help offset gains from the executive’s scheduled stock sales. Over several years, the investor can reduce reliance on the employer’s stock while building diversified market exposure.
Tax-loss harvesting depends on market conditions and is generally more plentiful during periods of volatility or after a portfolio is initially funded. Benefits may diminish as the portfolio matures, and transaction costs, fees, tracking differences, and tax rules should all be considered.
Benefits Beyond Tax-loss Harvesting
- Portfolio Customization: Investors can exclude selected companies, industries, or sectors. This may help avoid adding to exposures already created by an employer stock position or other assets.
- Broader Diversification: The portfolio can be constructed to provide broad market exposure while accounting for the investor’s existing concentrated holding.
- Ongoing Tax Management: Because individual securities move differently, harvesting opportunities may arise throughout the year rather than only when the overall market declines.
- Personalization: Subject to implementation constraints, portfolios may incorporate restrictions, factor preferences, responsible-investing considerations, or other investor-specific objectives.
What Investors Should Consider?
Direct indexing is not automatically preferable to an ETF or mutual fund [4]. Before implementation, investors should evaluate:
- Investment management and trading costs,
- Minimum account size and operational complexity,
- Potential tracking differences relative to the selected index,
- The expected availability and value of future tax losses,
- Wash-sale coordination across the investor’s other accounts, and/or
- Whether customization improves the total portfolio or creates new unintended exposures
Important Trade-offs
Tax outcomes also depend on the investor’s jurisdiction, holding periods, other realized gains and losses, and future tax rates. Investment and tax advisers should coordinate the strategy before trades are made.
The strategy may also produce significant trading and more complex tax reporting. Harvested losses generally defer tax rather than eliminate it, unless another planning outcome applies.
How Long-short Tax-loss Harvesting may add Further Benefits
In a long-short portfolio, the manager holds additional long positions and sells a separate group of securities short. A 130/30 structure, for example, combines 130% long exposure with 30% short exposure, leaving 100% net market exposure before considering implementation differences. Other extension levels may be used. The long and short books are constructed together so that the overall portfolio is intended to remain broadly aligned with the chosen benchmark and the investor’s diversification objective.
Traditional direct indexing is generally long-only: the investor owns a diversified basket of stocks and harvests losses when individual holdings decline. As markets rise and the portfolio’s tax basis becomes seasoned, the number of available losses can decrease. A tax-aware long-short extension is designed to expand the opportunity set.
Long-only versus Long-short
Long-only direct indexing seeks losses across individually held stocks while maintaining index-like exposure. Long-short tax-loss harvesting adds both extended long positions and short positions, increasing the number of potential loss-harvesting opportunities. Further, the short position can provide a hedging element, by going short stocks that have similarity to the concentrated stock position. The trade-off is a more complex portfolio with leverage, financing costs, short-selling risks, and a more involved exit plan. This process requires close monitoring of quantitative data and is best done by managers with a specialization in this niche.
Direct Indexing Works Best as Part of a Broader Plan
Direct indexing is rarely a complete solution on its own. It may be combined with scheduled multi-year sales, charitable gifting, estate planning structures, or option-based risk management. The appropriate mix depends on liquidity needs, risk tolerance, trading restrictions, tax circumstances, and legacy objectives.
The goal is not simply to maximize harvested losses. It is to improve the investor’s overall after-tax outcome while steadily moving the portfolio toward a more resilient structure.
The Key Takeaway
A concentrated holding may have been central to creating wealth, but it can also leave future outcomes dependent on one company. Direct indexing may provide a tax-aware route toward diversification by pairing broad market exposure with security-level loss harvesting. Its greatest benefit comes from disciplined implementation and coordination with the investor’s wider financial plan.
How LEO Wealth can Help?
LEO Wealth helps clients evaluate concentrated stock positions within the context of their complete financial lives. Our approach brings together investment management, tax-aware portfolio construction, retirement and cash-flow planning, and estate and legacy considerations. The objective is to create a practical path toward diversification while preserving flexibility and keeping long-term objectives at the center of the plan.
DISCLOSURES
The information provided is for educational purposes only. The views expressed here are those of the author and may not represent the views of Leo Wealth. Neither Leo Wealth nor the author makes any warranty or representation as to this information’s accuracy, completeness, or reliability. Please be advised that this content may contain errors, is subject to revision at all times, and should not be relied upon for any purpose. Under no circumstances shall Leo Wealth be liable to you or anyone else for damage stemming from the use or misuse of this information. Neither Leo Wealth nor the author offers legal or tax advice. Tax services provided are separate from the Securities or Advisory services offered through Leo Wealth Americas. Please consult the appropriate professional regarding your individual circumstance. Past performance is no guarantee of future results.
This material represents an assessment of the market and economic environment at a specific point in time. It is not intended to be a forecast of future events or a guarantee of future results.
[1] Concentration risk is the risk of amplified losses that may occur from having a large portion of your holdings in a particular investment, asset class or market segment relative to your overall portfolio.
[2] Diversification does not guarantee a profit or protect against a loss in a declining market. It is a method used to help manage investment risk.
[3] Rebalancing/Reallocating can entail transaction costs and tax consequences that should be considered when determining a rebalancing/reallocation strategy.
[4] Mutual Funds and Exchange Traded Funds (ETF’s) are sold by prospectus. Please consider the investment objectives, risks, charges, and expenses carefully before investing. The prospectus, which contains this and other information about the investment company, can be obtained from the Fund Company or your financial professional. Be sure to read the prospectus carefully before deciding whether to invest. An investment in the Fund involves risk, including possible loss of principal.
