The most expensive mistakes in concentrated stock happen before the order is placed. These are the twelve decisions we resolve on every position, in the order we resolve them, published in full.
A sale is not one decision. It is a tax decision, a risk decision, an execution decision, and a redeployment decision, and each has its own failure mode. Work the list in order. If any point is unresolved, the position is not ready to trade, no matter how compelling the price looks today.
Your custodian's default disposal method is rarely the right one for a low-basis position. Identify specific lots before the trade so each sale realizes the gain you chose, not the gain the system chose.
Decide how much gain each tax year can absorb given your brackets, the 3.8% surtax thresholds, and any offsets available. The schedule of sales should be derived from the budget, never the reverse.
A move between states can change the tax on the same sale by several percentage points, and residency rules turn on dates and documentation. If a relocation is plausible within your horizon, sequence the realizations around it with professional advice.
Gifting low-basis stock you already planned to give away removes that gain from the schedule entirely and may still support a deduction. Cash gifts made alongside stock sales usually mean the order of operations was wrong.
Define the range the position is allowed to occupy in your net worth, such as five to ten percent, before emotions or prices move. Every future decision to sell or hold gets measured against the band, not against how the stock feels this quarter.
Collars, exchange funds, and staged programs each trade some upside or liquidity for protection or deferral. Even if the answer is a plain sale schedule, the answer should follow a comparison, not precede one.
If the issuer also employs you, your salary, bonus, and unvested grants are correlated with the shares you hold. Size the true exposure with employment included, and let that number, not the brokerage balance, drive the diversification pace.
Company policy, blackout calendars, and Section 16 status can make an otherwise sound trade a serious problem. Clear the compliance question before any economic question, every time.
A pre-committed plan lets sales execute through blackouts under an affirmative defense framework and removes the temptation to time each window. Adopt it while you possess no material nonpublic information, and respect the required cooling-off period.
Large blocks moved carelessly can move the price against you. Decide in advance whether tranches, limit orders, or algorithmic execution across sessions fits the stock's average volume, and never let an entire tranche hit the market as one market order.
The diversified target portfolio should exist on paper before the first share is sold, with allocations, vehicles, and account locations decided. Proceeds without a destination become cash that waits for confidence that never comes.
Set a maximum holding period for uninvested proceeds and a rule for how each tranche enters the target portfolio. Diversification is only complete when the money is redeployed, not when the stock is sold.
Bring your position. We will work the list together.
