Last reviewed: September 2026
Concentrated stock diversification stalls for one reason more than any other: the owner is waiting for a better price, and that price keeps moving. A target that follows the stock up and down is not a sell plan. A fixed percentage sold on a fixed calendar is, and once you price the tax cost next to the concentration risk, the staged sale usually looks far cheaper than the delay.
Key Takeaways
- A target price anchored to today's quote drifts every time the stock moves, so the sale it promises rarely happens.
- Federal long-term gains are taxed at 0%, 15%, or 20%, plus a 3.8% surtax above $200,000 of income for single filers.
- Maryland adds a 2% surtax on net capital gains once federal AGI passes $350,000, which staging a sale across years can help manage.
- The tax on a planned sale is a known, bounded number; a bad year for one company is neither.
About the Author: Jeff Judge, CFP®, AEP®, ChFC®, CLU® is Managing Partner of Chesapeake Financial Planners in Forest Hill, Maryland. He has been helping families and business owners in Harford County and the Baltimore metro area navigate concentrated stock and equity compensation decisions since earning his CFP® certification in 2013, by using Chesapeake's signature process, the R.U.D.D.E.R. Method™. "Nobody I've worked with regrets writing the sell rule down," Jeff says. "The regret comes from the years they spent waiting for a number that kept sliding away."
Why Does Waiting for a Better Price Keep You Concentrated?
One person I work with has held the same block of employer stock since his company went public six years ago. It's up more than 400%. Four separate times he told me he'd start selling "once it settles down." It hasn't settled. It isn't going to.
I used to treat this as a math problem. It isn't. What's actually going on is that "wait for a better price" works as a delay mechanism dressed up as patience.
The pattern repeats. Someone ends up with a large stake in one company through vesting or early options. They agree that having 40% or 60% of their net worth in one name is a problem. Then they attach a condition: once it hits a certain price, once earnings are out, once volatility calms down.
That condition can't be met. If the stock runs higher, selling feels like leaving money on the table. If it drops, selling feels like locking in a loss. No price quiets both objections, which tells you the condition was about postponing a decision that felt too big, not about price.
It doesn't help that concentration feels like winning. The balance climbs, and every glance at the account says the approach is working, right up until the year it stops. I see the mirror image too: someone whose company stock has been flat for two years who won't sell "at a loss and admit it was a mistake." Different emotion, same outcome. If that sounds familiar, our look at the psychology of holding too much company stock goes deeper.
What Makes a Sell Rule Real Instead of a Wish?
A real rule has an input you don't control and an action that doesn't depend on how you feel about it. "Sell when it hits $200" sounds like it qualifies. It doesn't, because the number is anchored to where the stock already trades. Reach $180 and the target quietly becomes $220.
"The price target isn't a strategy. It's a story people tell themselves so the delay feels like discipline," says Jeff Judge, CFP®.
Compare that with a rule that ignores price: sell a set percentage on a set schedule, whatever the stock did that week. "Sell 10% of the position every quarter for two and a half years" gets tested every quarter. You can break it, and that's the point. A rule you can't violate is just a hope.
| Feature | Price-target trigger | Calendar sell rule |
|---|---|---|
| What starts the sale | A price anchored to today | A date on the calendar |
| How often it gets tested | Rarely, because the target drifts | Every scheduled trade |
| Reaction to a rally | Target moves higher | Trade happens anyway |
| Reaction to a drop | "Wait for it to come back" | Trade happens anyway |
| Tax planning | Unknown timing and bracket | Sized to a planned bracket each year |
Putting it into practice takes four steps:
- Pick the percentage of the position you're willing to sell this year.
- Pick the number of trades, quarterly or monthly.
- Write both down somewhere you'll see them again.
- Execute on schedule regardless of the week's price.
Is a staged sale just dollar-cost averaging in reverse? Close, but the goal differs. A staged sale spreads both market timing and the tax bill across years, so no single quarter's price or single year's bracket decides the outcome. The moment the schedule becomes conditional on price, it turns back into the same old story.
How Does the Tax Bill Compare With the Cost of Staying Concentrated?
Here's a hypothetical. Someone holds $800,000 of employer stock with a $100,000 basis, so $700,000 is unrealized gain. Sold in one year at the 20% federal rate plus the 3.8% net investment income tax, the federal bill is about $166,600. That number usually ends the conversation.
Now the other column. If the company hit a rough stretch (a guidance miss, a lost customer, a leadership shakeup) and the stock fell 40%, that position would lose $320,000. There's no bracket to manage that loss into and no schedule to spread it across. The tax is a cost you choose on your terms. The concentration loss arrives on the market's terms.
The company may be excellent. The risk is that your paycheck is already tied to it, and that loss rarely arrives alone. Layoffs, hiring freezes, and a falling share price tend to show up together because one business problem causes all three, so the year your job feels least certain can be the year your equity is down most. Jeff Judge has noticed that people holding big positions are rarely reckless; they know the textbook answer and lack a mechanism that overrides the timing story.
None of this argues for selling everything tomorrow. It argues for putting both numbers on the same page. The 3.8% surtax applies once modified adjusted gross income passes $200,000 for single filers or $250,000 for joint filers, and a staged sale sized to a planned bracket each year often gets someone most of the way to diversified without the worst of the tax landing in one return. Our guide to diversifying a concentrated stock position without a huge tax bill covers more tools, and this breakdown of selling tech stock all at once or in stages walks through timing.
Why Does Concentrated Stock Diversification Cost More in Maryland?
Maryland has historically taxed capital gains at the same rates as ordinary income, with state rates reaching 6.5% at the top bracket in 2026, plus county tax. Harford County's local rate is 3.06% for 2026, and Baltimore County's is 3.20%.
Starting with 2025, Maryland also adds a 2% surtax on net capital gains when federal adjusted gross income exceeds $350,000. A large one-year sale can push almost anyone over that line. Staging won't keep every high earner under it, but for a household with more modest wages, it can keep some years below the threshold.
Does the Maryland surtax apply to gains inside a 401(k) or IRA? No. The Comptroller's guidance excludes gains inside 401(k)s, 403(b)s, IRAs, and similar retirement accounts, along with qualifying primary-home sales under $1.5 million. It targets gains in taxable accounts, which is exactly where vested employer stock usually sits.
For clients in Forest Hill, Bel Air, and the Baltimore suburbs, we size each year's tranche around the federal brackets and this Maryland threshold. The R.U.D.D.E.R. Method™ is Chesapeake Financial Planners' six-step planning process: Review and Recognize, Uncover and Understand, Design and Develop, Discuss and Decide, Execute and Empower, and Reassess and Refine. Reassess and Refine is where next year's tranche adjusts as income changes.
When Does Holding the Stock Make More Sense?
One pushback holds up. Someone with a properly structured plan set up in advance is in a different spot from someone holding out of inertia. Insiders often sell through a Rule 10b5-1 trading plan, and under the SEC's amended rule, directors and officers face a cooling-off period of at least 90 days before trades begin, while other covered persons wait 30 days. That plan is itself a schedule.
Most people saying "I have a good feeling about next quarter" don't have that structure. If your rationale changes with whether the stock was up or down that week, you don't have a plan. You have a habit of not selling, and the price is the excuse it hides behind.
The client with the 400% gain finally started a staged sale last year, not because the stock hit a number, but because he stopped waiting for one. Eighteen months in, he's a third of the way through, on schedule, and still owns plenty of shares if the company keeps doing well. He just doesn't need it to anymore. The goal was to stop needing the company to be right in order to be fine.
Frequently Asked Questions
What is the biggest mistake in concentrated stock diversification?
The biggest mistake is tying the sale to a target price. A target anchored to today's quote moves every time the stock does, so the trade rarely happens. A calendar rule, such as selling a fixed percentage each quarter, gets tested on schedule and keeps the decision from depending on how the stock feels that week.
How long should a staged sale of employer stock take?
Many staged sales run two to three years, sized so each year's gain lands in a planned tax bracket. The right length depends on the position's size, your cost basis, your other income, and how much single-company exposure you can tolerate meanwhile. Writing the schedule down matters more than the exact duration.
How are gains on employer stock taxed when I sell?
Shares held longer than a year are taxed at federal long-term rates of 0%, 15%, or 20% depending on income. A 3.8% net investment income tax applies above $200,000 of modified adjusted gross income for single filers and $250,000 for joint filers. Maryland residents also owe state and county tax on the gain.
Does Maryland's 2% capital gains surtax affect a stock sale?
It can. Starting with 2025, Maryland adds a 2% surtax on net capital gains when federal adjusted gross income exceeds $350,000. A large one-year sale can cross that line on its own. Spreading the sale across years may keep some years under the threshold, depending on your wages and other income.
What if my company stock has dropped since I received it?
A decline doesn't change the concentration problem; it only changes the emotion. Many people hold a falling stock to avoid admitting a loss, but one company still drives both the paycheck and the portfolio. Losses in a taxable account may also offset other gains, which a planner can build into the schedule.
Ready to Put a Calendar on Your Concentrated Stock?
Concentrated stock diversification starts the day you stop waiting for a number and start following a schedule. Ready to put a plan around yours? Jeff Judge and the Chesapeake Financial Planners team serve families and business owners across Harford County, Forest Hill, Bel Air, and the Baltimore metro area. Schedule a free fit call at chesapeakefp.com and bring your vesting statements.
A version of this article was originally published on Jeff Judge's LinkedIn.
Disclosures
The information provided is for educational purposes only and should not be construed as investment advice. Investment strategies should be tailored to individual circumstances, risk tolerance, and goals. Past performance doesn't guarantee future results. Consult with qualified financial professionals regarding your specific situation.
There is no guarantee that a diversified portfolio will enhance overall returns or outperform a non-diversified portfolio. Diversification does not protect against market risk.
Stock investing includes risks, including fluctuating prices and loss of principal.
This information is not intended to be a substitute for specific individualized tax, investment or legal advice. We suggest that you discuss your specific situation with a qualified tax, legal or financial advisor.
Advisors associated with Chesapeake Financial Planners may be either (1) LPL Financial Registered Representatives offering securities through LPL Financial, Member FINRA and SIPC, and investment advisor representatives offering investment advice through Great Valley Advisor Group; or (2) solely investment advisor representatives offering investment advice through Great Valley Advisor Group and not affiliated with LPL Financial. Great Valley Advisor Group, and Chesapeake Financial Planners are separate entities from LPL Financial.
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