For many successful technology professionals, the same equity that built their wealth eventually becomes their biggest financial risk. Years of stock grants, option exercises, and a rising share price can leave a large share of net worth tied up in a single company. The position that made you wealthy is now the position that could unmake a meaningful part of that wealth if the stock falls.
This is the concentration problem, and it is one of the most common and consequential situations a tech professional faces. It is also one of the most emotionally difficult, because the stock is familiar, it has performed well, and selling can feel like a lack of faith or an invitation to a large tax bill. But concentration is a risk regardless of how good the company is, and managing it thoughtfully is a hallmark of turning a windfall into lasting wealth.
Here is how to think about it and the tools available.
First, Recognize the Risk for What It Is
A useful way to frame the question is to imagine you held the equivalent value in cash instead. Would you take that cash and put a large portion of it into a single stock, the same company that already pays your salary and may hold your future grants? For almost everyone, the honest answer is no. Holding a concentrated position is economically the same choice, just made by default rather than deliberately.
A single company, however excellent, carries risks that a diversified portfolio does not: a product misstep, a regulatory action, a competitor, a broad sector decline, or simply a market that re-rates the stock. When too much of your financial future depends on one outcome, the prudent move is to reduce that dependence over time. A common rule of thumb is to be cautious when any single stock represents more than ten percent or so of your net worth, though the right threshold depends on your circumstances.
The Straightforward Path: Sell and Diversify
The simplest way to reduce concentration is to sell shares and reinvest the proceeds into a diversified portfolio. The objection is usually tax: selling appreciated stock triggers capital gains. But that cost is often smaller than feared, especially for long-term holdings taxed at favorable capital gains rates, and it is frequently worth paying to remove a large, undiversified risk.
A disciplined approach is to sell in a planned, systematic way rather than trying to time the market, often over more than one tax year to manage the rate at which gains are realized. Pairing sales with any available capital losses elsewhere in your portfolio can offset some of the gain. The key insight is that the tax tail should not wag the dog. Avoiding a manageable tax bill is rarely a good reason to keep carrying an outsized risk.
Tools to Diversify More Gradually or Efficiently
For larger positions, several strategies can reduce concentration with more nuance, each with its own tradeoffs and conditions.
- Direct indexing with tax-loss harvesting. Rather than holding a broad index fund, you hold the individual stocks of an index in a managed account. As individual names decline, losses are harvested and used to offset the gains you realize when trimming your concentrated position, allowing you to diversify more tax-efficiently over time.
- Exchange funds. These pool appreciated shares from many investors into a diversified fund. You contribute your concentrated stock and receive an interest in the diversified pool without triggering an immediate taxable sale, subject to a multi-year holding requirement and other conditions. They reduce single-stock risk but come with illiquidity and complexity.
- Hedging with options. A protective put can set a floor under the stock’s value, and a collar, which pairs a put with a sold call, can finance much of that protection. Hedging does not diversify, but it can limit downside while you decide on a longer-term plan, subject to cost and tax considerations.
- Charitable strategies. Donating appreciated shares to a donor-advised fund or a charitable remainder trust can remove low-basis stock from your portfolio, provide a tax deduction, and in the case of a charitable remainder trust, diversify within a tax-advantaged structure while generating an income stream. For the charitably inclined, these tools address concentration and philanthropy at once.
A Note for Company Insiders
If you are an executive or otherwise have access to material non-public information, your ability to sell is constrained by securities law and company trading windows. The common solution is a pre-arranged trading plan that allows sales to occur on a set schedule established in advance, when you do not have inside information. These plans require a waiting period before trading begins and must be set up correctly, but they let insiders diversify steadily and compliantly rather than being permanently locked in.
A Long-Term Perspective
Concentration is how fortunes are made in technology, and also how they are occasionally lost. The professionals who keep what they have built are usually the ones who recognized, often against their own optimism about the company, that a large undiversified position is a risk to be managed rather than a conviction to be maintained. Reducing it does not require abandoning the stock entirely or ignoring its prospects. It requires a deliberate plan to bring the position down to a size you would choose on purpose.
The objective is to protect the wealth the equity created, by converting a concentrated bet into a diversified foundation, thoughtfully and tax-efficiently, on your own schedule rather than the market’s.
At Carrara, we help technology professionals build and execute a plan around concentrated stock, weighing the tax, the risk, and the available tools, and coordinating with tax advisors so the strategy fits the full financial picture.
This article is provided for educational purposes only and does not constitute tax, legal, or investment advice. Strategies involving concentrated stock carry risks and tax consequences that depend on individual circumstances. Please consult qualified tax and financial advisors regarding your specific situation.