Managing Concentrated Employer Stock Risk

Managing Concentrated Employer Stock Risk

If a large share of your wealth sits in the same company that pays your salary, you’re not diversified. You’re exposed twice over, once through your paycheck, once through your portfolio, and it’s worth saying that plainly, because the people I see carrying the most concentrated stock are usually the ones who feel safest, not the ones who feel nervous. Loving your company is not the same as your portfolio being protected by it.

I’ve sat across from women holding stock worth more than their entire base salary, watching that number swing by tens of thousands of dollars in a single bad week, and the conversation almost always starts the same way: “I know I should probably sell some, but…” That “but” is doing a lot of work. Sometimes it’s loyalty. Sometimes it’s a belief the stock still has further to run. Sometimes it’s simply that selling feels like a decision, and holding feels like not having to make one. None of those reasons make the underlying math go away.

The lesson that’s twenty-five years old and still relevant

Enron is the reference point everyone reaches for, and for good reason. When the company collapsed in 2001, more than half of many employees’ retirement savings were tied up in Enron stock, and that stock went to zero. Those weren’t careless people. Many of them worked there for years, believed in the leadership, and watched the stock climb steadily right up until the moment it didn’t. The lesson isn’t that Enron was uniquely evil. It’s that any single company, no matter how solid it looks from the inside, can fail in a way that takes your income and your savings down at the same moment. That’s the actual definition of concentration risk. It’s not about how good the company is. It’s about how many of your eggs are in the one basket that also happens to write your paycheck.

Is there a real number? Sort of.

Advisors commonly cite keeping any single stock to somewhere between 5% and 10% of total investable assets, with some looser guidance stretching that to 20%. I want to be honest about what that number is and isn’t. It’s not a regulation, and staying under it doesn’t mean nothing can go wrong, or that going over it dooms you. It’s a planning reference point, and a useful one, but it was never designed for executives and founders whose compensation structurally requires holding company stock, the way an early employee’s net worth gets built almost entirely from grants over a decade of vesting. If you’re in that position, the goal isn’t hitting a specific percentage. It’s making a deliberate decision about how much concentration you’re willing to carry, instead of holding it by default because selling never came up.

I think about it less as a percentage problem and more as a “what would actually hurt” problem. Ask yourself plainly: if this stock dropped 50% tomorrow, on top of whatever’s happening with your job at that same company, what would that actually do to your life? Could you still cover your expenses, your goals, your timeline? If the honest answer makes you uncomfortable, that discomfort is more useful information than any rule-of-thumb percentage could ever give you.

The tools that actually reduce this without one dramatic sale

You don’t have to choose between holding everything and selling everything at once. A few specific tools exist for exactly this situation.

A Rule 10b5-1 plan is a written, pre-arranged agreement to sell a set amount of stock on a schedule, set up while you have no access to material nonpublic information. Once it’s active, it runs on autopilot, including during blackout periods, and it gives you real protection against insider-trading concerns because the decisions were made in advance, not reactively. If you’re an officer or director, recent SEC rules require a cooling-off period before trades can begin: the later of 90 days after you set up the plan, or two business days after your company’s next quarterly or annual filing, capped at 120 days. Change the plan’s terms, and that clock restarts.

That cooling-off requirement isn’t bureaucratic friction for its own sake. It exists because the entire value of a 10b5-1 plan, the insider-trading protection, depends on the plan being set up before you know something material that hasn’t been disclosed yet. Build in the waiting period, and regulators get more confidence that your plan reflects a genuine, advance decision rather than a convenient excuse adopted right before bad news breaks. If you’re not an officer or director, you still benefit from the same logic even without the mandatory waiting period: set the plan up when you have no material information, and let it run untouched.

Beyond that, tax-loss harvesting elsewhere in your portfolio can offset gains realized from selling concentrated shares, and exchange funds let you swap concentrated stock into a diversified fund without triggering an immediate taxable sale. None of these require a single all-or-nothing decision. They’re built for gradual, planned reduction.

What all three of these tools have in common is patience. A 10b5-1 plan sells a little at a time, on a schedule. Tax-loss harvesting works alongside a multi-year selling plan, not a one-time event. Exchange funds typically require a multi-year holding commitment before you can fully exit into the diversified fund. None of this is designed for someone trying to get out of a position overnight, and that’s by design. The tax code rewards patience here, and the tools reflect that.

Diversifying isn’t a vote of no confidence

I want to say this directly, because I hear the hesitation constantly: selling down a concentrated position doesn’t mean you’ve stopped believing in the company. It means you’ve decided your family’s financial security shouldn’t depend entirely on one stock’s performance, which is a completely separate question from whether that stock is a good one.

You can believe in the company and still protect yourself from the version of the future where you’re wrong. That’s not disloyalty. That’s just planning.

There’s also a quieter version of this conversation worth having with yourself: how much of your identity is tied up in being someone who holds the stock. For people who joined a company early, or who’ve watched a position grow significantly over years, selling can feel like an admission that the run is over, even when it isn’t. It’s worth separating the financial decision from the emotional one, because they don’t have to move together. You can be proud of what you built and still decide, with clear eyes, that it’s time to take some of it off the table.

What percentage of your net worth is actually sitting in your employer’s stock right now, the real number, not the guess?

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Wild Iris Financial LLC is a registered investment adviser. Information presented is for educational purposes only and does not intend to make an offer or solicitation for the sale or purchase of any specific securities, investments, or investment strategies. Investments involve risk and, unless otherwise stated, are not guaranteed. Be sure to first consult with a qualified financial adviser and/or tax professional before implementing any strategy discussed herein. Past performance is not indicative of future performance.