Investing
Diversification math, 10b5-1 trading plans, exchange funds, direct indexing, covered calls against concentrated positions. Investing with an equity-heavy starting allocation.
Most investing advice starts from a clean slate. You don’t have one. You start from a concentrated position in your employer’s stock — often 40-80% of your net worth — and the first question is how fast to diversify and through which vehicle. The textbook answer (sell and reallocate) runs into real-world constraints: capital gains tax on appreciated shares, blackout windows at public companies, the emotional weight of selling a stock that built your wealth, and the paper concentration of pre-IPO employees with no liquid path out at all. This section covers the playbook once concentration is already the problem.
The deconcentration toolkit
There are six techniques that actually move the needle on a concentrated position, and they differ mostly by tax treatment and time-to-execute. Selling directly, staged across tax years, is the cleanest and cheapest — you just pay LTCG and NIIT on the gain. Exchange funds let you contribute appreciated stock into a pooled vehicle and receive diversified exposure without a taxable event, subject to a 7-year hold. Variable prepaid forwards let you monetize today against future delivery without triggering sale treatment. Collar strategies cap downside in exchange for capping upside. Direct indexing harvests losses in an S&P-like portfolio to offset gains from selling your concentrated position. Covered calls generate income but don’t address concentration directly.
The 10b5-1 plan is the execution layer that makes any deconcentration strategy operational at a public company, since it lets you trade through blackout windows on a pre-committed schedule.
When is concentration actually a problem?
The 70/30 rule is a useful anchor without being a formula: most advisors flag concentration when a single position exceeds 20-30% of investable assets, and treat 50%+ as a structural issue. For tech employees, the reality is that concentration builds automatically — every vest, every ESPP purchase, every round of RSU refresh grants adds to the position. The hedge vs diversify framework is the decision tree: hedging is cheaper short-term and doesn’t trigger tax, but diversification is the only real solution to concentration risk.
Margin and SBLOCs are the liquidity options for holders who don’t want to sell — useful for covering tax bills or large one-time expenses, risky as a long-term strategy.
The behavioral layer most people don’t cost in
Behavioral finance is the underappreciated reason most tech employees hold too long. The endowment effect — overvaluing what you already own — compounds with anchoring to a previous stock-price high. The loss-aversion trap makes selling at a gain feel worse than holding through a drawdown. The “it’s not gain until I sell” fallacy explicitly confuses unrealized gains with optionality. The supporting articles in this section cover each bias with the specific pattern for equity holders.
The long-tail questions
Investing-specific tax math for equity-comp sellers is pre-computed under the capital gains question library — 30 gain sizes × 51 states. The QSBS question library does the same for Section 1202 eligibility math. The state capital-gains guides cover per-state nuance, where Washington’s 7% cap-gains tax, California’s QSBS non-conformity, and the no-state-tax destinations (TX, FL, NV) each change the answer.
Next step
If you know you’re over-concentrated (>40% single-stock) and haven’t started a 10b5-1 plan, read the setup guide. If you’ve got >$500k of appreciated RSU shares and haven’t modeled the deconcentration options, match with an advisor who can run the exchange-fund vs staged-selling vs direct-indexing comparison against your specific basis and tax-year capacity.
A common planning anchor: no more than 30% of investable net worth in one stock. The rule is not in the tax code; it is a heuristic that works better at some wealth levels than others.
Anchoring on a recent high price distorts sell decisions long after the high becomes irrelevant. The anchor holds even when the business fundamentals have changed.
A CRT lets a concentrated holder diversify inside a tax-exempt trust, receive income for life, and leave the remainder to charity. The upfront charitable deduction and deferred gain make the math work.
A collar buys downside puts funded by selling upside calls. For concentrated employer-stock holders, it caps loss without triggering gain, but the structure has tax and economic tradeoffs.
- The 70/30 Rule for Single-Stock Concentration: An Anchor, Not a Formula
A common planning anchor: no more than 30% of investable net worth in one stock. The rule is not in the tax code; it is a heuristic that works better at some wealth levels than others.
- Anchoring to a Previous Stock-Price High: The Refusal to Sell Below It
Anchoring on a recent high price distorts sell decisions long after the high becomes irrelevant. The anchor holds even when the business fundamentals have changed.
- Charitable Remainder Trusts as a Diversification Exit
A CRT lets a concentrated holder diversify inside a tax-exempt trust, receive income for life, and leave the remainder to charity. The upfront charitable deduction and deferred gain make the math work.
- Collar Strategies on Concentrated Positions: Zero-Cost, Structured, Variable
A collar buys downside puts funded by selling upside calls. For concentrated employer-stock holders, it caps loss without triggering gain, but the structure has tax and economic tradeoffs.
- Writing Covered Calls on Employer Stock: Income, Not a Hedge
Covered calls generate premium income against a concentrated position. They are not a hedge against downside, and the tax treatment can surprise holders with long-term gain positions.
- Direct Indexing as a Concentration Offset: Harvesting Losses Against Employer-Stock Gains
Direct indexing accounts produce a steady stream of realized losses that can offset employer-stock gains over multiple years, turning diversification into a tax-efficient glide path.
- The Endowment Effect: Why You Can't Sell Your Vested Stock
The endowment effect makes you value what you own more than identical assets you don't own. For tech employees with vested RSUs, it's the single biggest reason concentrated positions stay concentrated.
- Exchange Funds (Swap Funds): How Concentrated Holders Defer Gains Without a Sale
Exchange funds let holders of low-basis concentrated stock swap into a diversified pool without triggering capital gains. The catch: a seven-year lockup and qualifying-asset rules.
- Hedging vs Diversifying a Concentrated Position: Which Solves Which Problem
Hedging caps downside without changing the position. Diversification changes the position permanently. Concentrated holders often need both, in different proportions, for different reasons.
- Loss Aversion and Equity Concentration: The Hold-to-Breakeven Trap
Loss aversion makes selling below your mental cost basis feel catastrophic, even when the rational choice is to sell and diversify. The cost compounds the longer you hold.
- Margin and SBLOCs Against Concentrated Stock: Liquidity Without Selling
Securities-backed lines of credit and margin loans unlock cash against concentrated stock without triggering gain. The tradeoffs are callable debt, margin risk, and interest drag.
- Mental Accounting at a Liquidity Event: Why 'Found Money' Gets Spent Worse
Mental accounting labels liquidity-event proceeds as windfall money and triggers spending that the same dollars from ordinary income would not.
- The 'It's Not Gain Until I Sell' Fallacy
Treating unrealized gains as 'not real' until you sell creates systematically worse decisions than treating paper wealth as already yours.
- Overconfidence: Why Tech Employees Hold Employer Stock Too Long
Overconfidence bias makes tech employees believe they have an information edge on their own company's stock. Over 10 years, the belief costs 2-4 percentage points of annualized return.
- Present Bias and Deferred-Compensation Elections
A deferred-compensation election locks future income into a vesting and distribution schedule. Present bias makes employees systematically underweight the value of deferred dollars and skip elections that would save six figures.
- Procrastination on April Tax Planning: The Cost of Q4 Inaction
Tax planning moves that matter for April are made between October and December. The behavioral forces that push the planning to 'after the holidays' cost five figures per year.
- Prospect Theory in a Tender-Offer Decision: Framing the Sale
A tender offer forces an explicit sell-or-hold decision. Prospect theory explains why the framing of the offer — not its price — drives most employee responses.
- Staged Selling Across Tax Years: The Bracket-Management Playbook
Spreading a concentrated-stock sale across three to five tax years can cut the effective tax rate by staying out of the top brackets and NIIT in years with lower base income.
- Sunk-Cost Fallacy With Underwater Options
An option priced out of the money after a down-round or stock decline often stays in the holder's mental portfolio long after its economic value has dropped to near zero.
- Variable Prepaid Forward Contracts: Selling Without Selling for Tax Purposes
A variable prepaid forward gives concentrated-stock holders cash today against a future variable share delivery, deferring the gain for years while unlocking liquidity.
- The Behavioral Trap of Holding Employer Stock Too Long
Why smart tech employees systematically over-hold their employer's stock, the specific cognitive patterns involved, and how to design around them.
- Direct Indexing Against a Concentrated Stock Position
How holding an index as individual stocks instead of a fund produces $30-80k of realized losses per year that offset gains from a concentrated sell-down.
- Concentrated Stock: 8 Ways to Diversify Without Blowing Up Your Tax Bill
Practical techniques for reducing single-stock concentration when most of your basis is locked in appreciation and a straight sale would cost 30% in tax.