Presidio Capital Management, LLC — SEC Registered Investment Advisor — CRD #304501 — 12626 High Bluff Drive, Suite 150, San Diego, CA 92130 — (858) 461-4959
Live Webinar
The Hidden Risks of Holding Too Much of One Thing
A live, educational session on the risks that come with a concentrated position, whether it's one company's stock, equity compensation, real estate, or a business you own, and the questions worth asking before you decide anything. Time is reserved for Q&A.
- How a single position can quietly grow into a large share of your net worth, and why it often goes unnoticed
- The risks that tend to travel together: price swings, the tax cost of a low cost basis, trading restrictions, and income tied to the same asset
- What history shows about individual stocks over time, and the questions to ask about your own situation
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Registration is through Zoom. You'll receive a confirmation email with your join link and a calendar invite.
Complimentary. For educational purposes only; not individualized tax, legal, or investment advice. See important disclosures below.
Your wealth grew
in one direction.
Does your risk too?
A large stake in one stock, a pile of unexercised options, or a few properties can gradually become a large share of what you own, often before it feels that way. This guide explains why that happens, describes the tools people commonly use to manage it, and offers a short self-check to help you think about where you stand today.
Why this isn’t about being wrong — it’s just math
There is no official rule, but large investment firms commonly start the conversation when one stock reaches about 5% to 10% of your investments (T. Rowe Price, Charles Schwab, and Fidelity each publish guidance in that range).
The chart below is not a forecast. It shows what happened to individual stocks in one J.P. Morgan study: of all the stocks that were ever in the Russell 3000 index from 1980 to 2020, about 44%, on average across sectors, fell 70% or more from their peak and mostly never recovered.
Concentration also cuts the other way. Some concentrated positions have produced outsized gains, which is part of why they are hard to let go. The point is not that holding one stock is a mistake. It is that the downside can be severe and hard to undo, so it is worth choosing on purpose.
Source: Michael Cembalest and Kirk Haldeman, J.P. Morgan, “Eye on the Market: The Agony & the Ecstasy,” March 15, 2021, Russell 3000, 1980–2020, using FactSet and Bloomberg data. Chart redrawn by PCM from the cited publication; J.P. Morgan is not affiliated with PCM. Shows the experience of individual stocks in the index, not the performance of any PCM client, account or strategy. Data cover 1980 to 2020; J.P. Morgan has published updates since, and other periods may differ. Sector results are historical and do not predict the outcome of any individual stock. Past performance does not guarantee future results. Diversification does not ensure a profit or protect against loss in a declining market.
The tools, side by side
These are general descriptions of approaches commonly used for public stock and equity compensation positions. Each carries its own costs, risks, tax consequences, and eligibility requirements, and none is suitable for every investor. They are not recommendations. Tap any one to learn more. (Real estate and business ownership call for a different toolkit.)
Outright sale with tax-loss harvesting — Same day; cash next business day
What it is: Sell shares over time and offset the gains with losses harvested elsewhere in your investments.
Who uses it: Anyone without trading restrictions, especially when the cost basis is not far below today's price.
Tax treatment: Capital gains tax generally applies and can be spread across years and tax brackets.
Watch for: A sale gives up future appreciation of the shares sold, and harvested losses are limited by tax rules such as the wash sale rule.
10b5-1 trading plan — First trade after 30 to 120 days
What it is: A written instruction, set up in advance, that tells your broker when to sell.
Who uses it: Mostly executives, board members, and other employees who learn company news before the public. Company policy decides who may use one.
Tax treatment: Ordinary sale tax rules generally apply to each trade as it executes.
Watch for: Waiting period before the first trade: for executive officers and directors, the later of 90 days after the plan is adopted or two business days after the company discloses its financial results (Form 10-Q or 10-K) for the fiscal quarter in which the plan was adopted, never more than 120 days; for everyone else, 30 days. A plan can serve as a legal defense to insider trading claims if the SEC's conditions are met. It is not a guarantee, and it does not replace Section 16 reporting or Rule 144 limits.
Collar or protective put — Protection, no cash
What it is: A put sets a floor under your stock's price. Selling a call pays for it but caps your gains.
Who uses it: Investors with a large position who want protection without selling. It needs options approval, and your company may restrict hedging by executives and directors.
Tax treatment: No sale means no immediate tax, but the tax code treats some hedges that lock in your gain as an immediate sale (IRC §1259). Structure matters.
Watch for: You give up some upside, and it does not generate cash.
Prepaid variable forward — Cash up front
What it is: A bank pays you cash today, a portion of what your shares are worth. Later you settle with shares, within a set range.
Who uses it: Usually owners of very large positions, often executives and founders, who want cash but cannot or prefer not to sell.
Tax treatment: Tax is usually put off until settlement, but how the contract is set up matters a great deal.
Watch for: You give up some upside. Fees and the bank's credit apply.
Exchange (swap) fund — About 7 years
What it is: Investors pool their single stocks into one fund, and each owns a slice of the whole mix.
Who uses it: Investors whose stock has grown a lot and who can lock up money for years. Each fund sets its own eligibility rules, so check its offering documents.
Tax treatment: Contributing generally does not trigger tax right away. After about seven years you can take out a basket of stocks that keeps your cost basis, so tax is delayed, not erased (IRC §704(c)(1)(B), §737).
Watch for: Fees apply, and you cannot easily withdraw.
Donor-advised fund (DAF) — No cash to you
What it is: A charitable savings account: you give shares, take the tax benefit now, and recommend grants over time.
Who uses it: People who already give to charity and own stock that has grown in value.
Tax treatment: Giving shares generally avoids tax on the gain, and a deduction may apply, within income-based limits.
Watch for: The gift cannot be taken back, and the sponsoring charity has the final say.
Charitable remainder trust (CRT) — Income payments
What it is: A trust that pays you income for up to 20 years or for life. What is left goes to charity.
Who uses it: People who give to charity and want income from stock that has grown. Usually set up with an attorney.
Tax treatment: The trust can sell the stock without immediate tax, but you are taxed on the payments as you receive them.
Watch for: It is irrevocable and files a tax return every year.
Completion portfolio — Position stays as is
What it is: Keep the stock, and build the rest of your investments to balance it.
Who uses it: People who are not ready to touch the position but want the rest of the household balance sheet more balanced.
Tax treatment: No tax event on its own.
Watch for: The position itself stays exposed to that company's risks.
Which tools deliver cash, and when
Liquidity is often the deciding factor. These are general descriptions; timing varies by company, custodian, and contract.
| Tool | Cash to you? | Timing and what to expect |
|---|---|---|
| Outright sale | Yes | The trade executes the same day. Cash settles one business day later (T+1). |
| Prepaid variable forward | Yes, an advance | Set by the contract with the bank. |
| 10b5-1 plan: executive officers and directors | Yes, as shares sell | The first trade comes after the later of 90 days, or two business days after the company discloses its financial results (Form 10-Q or 10-K) for the quarter in which the plan was adopted. Never more than 120 days. |
| 10b5-1 plan: everyone else | Yes, as shares sell | The first trade comes after 30 days. |
| Charitable remainder trust | Income payments | Paid for up to 20 years or for life, as the trust sets. |
| Exchange fund | No | About seven years in the fund to keep the tax benefit. |
| Collar or put | No | Protection only, for as long as the options last. |
| Donor-advised fund | No | The gift goes to charity. You recommend grants over time. |
| Completion portfolio | No | Your position stays as it is. |
Only the sale, the prepaid forward, and the 10b5-1 plan put cash from your shares in your hands.
The Concentration Compass
Concentration doesn't always look like a single stock: it can be company equity, a legacy position, real estate, or a business you built. Tell us what applies, and the check adjusts. This self-check is for educational purposes only. Its point values are simple weights chosen by PCM; it is not a validated risk model, a suitability determination, or investment advice, and your result does not recommend any action. When you click See My Result, your answers, result, name and email are shared with PCM so a Wealth Manager can review them with you.
Start with your name and email, then take the Concentration Compass.
When you click See My Result, your answers, result, name and email are shared with Presidio Capital Management so a Wealth Manager can review them with you.
Worth sitting with
What share of your net worth is really tied to this one position — stock, real estate, or business — including anything that hasn't vested or closed yet?
If it dropped by half tomorrow, what happens to your income and your timeline — not just your portfolio balance?
And is this concentration something you're holding on purpose, or just because untangling it never quite made it to the top of the list?
Let's chart your route
Whatever your result, you can book a complimentary introductory conversation with a Presidio team member to talk through your situation. If you later choose to work with PCM, advisory fees apply as described in our Form ADV Part 2A and Form CRS, which you can find at adviserinfo.sec.gov.
Pick a time that works for you to meet with a Presidio team member. The conversation is complimentary, and there's no obligation.
Opens our scheduling page in a new tab. Prefer the phone? Call (858) 461-4959.
BUILD. TRANSITION. THRIVE.
Presidio Capital Management, LLC | 12626 High Bluff Drive, Suite 150, San Diego, CA 92130
(858) 461-4959 | [email protected] | www.presidiocm.com
This material, including the self-guided assessment above, is provided for general educational and informational purposes only. It does not constitute individualized tax, legal, or investment advice, and nothing in this material, including your assessment result, is an offer, solicitation, or recommendation to buy, sell, or hold any particular security, or to pursue any particular strategy. Strategies such as 10b5-1 plans, collars, prepaid variable forwards, exchange funds, charitable vehicles, like-kind exchanges, and installment sales involve distinct costs, risks, tax consequences, and eligibility requirements, may not be suitable for every investor, and should be reviewed with your Wealth Manager, CPA, and/or attorney before acting. Tax treatment described here reflects general rules under current law, which is subject to change and depends on individual facts and circumstances. Third-party data are attributed to the sources cited and describe one historical period; they do not predict future results. Past performance does not guarantee future results. Diversification does not ensure a profit or protect against loss in a declining market. Investing involves risk, including possible loss of principal. Advisory services are offered through Presidio Capital Management, LLC (PCM), an SEC-registered investment adviser. Registration does not imply a certain level of skill or training. PCM's Form ADV Part 2A and Form CRS are available at adviserinfo.sec.gov.