We manage concentrated positions.

A concentrated stock position — often created by years of employer equity continuing to vest — ties too much of your net worth to one company. We help you reduce that exposure on a tax-aware schedule, not in one painful sale.

// THE PROBLEM

The danger isn’t the company. It’s the concentration.

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Concentration risk is the exposure that comes from holding a large share of your wealth in one stock — here, usually the employer whose RSUs or options built the position. For many tech employees, the same company signs the paycheck and dominates the portfolio. A rough year for the share price and a rough year for the business tend to arrive together — exactly when you can least afford it.

The question isn’t whether the stock goes higher — it’s how much of your future rides on the answer.

The question isn’t whether the stock goes higher — it’s how much of your future rides on the answer.

The question isn’t whether the stock goes higher — it’s how much of your future rides on the answer.

// THE GOAL

Trade a single decision for a managed process.

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02

Concentrated position management reduces single-company risk gradually while controlling the tax cost — not by liquidating everything at once.

// STEP 1

Reduce the downside

Cap near-term risk while you plan — a hedge, or trimming the easy lots.

// STEP 2

Diversify on a schedule

Move out of the position over several years, sized to your goals and basis.

// STEP 3

Consider the taxes

Time sales, harvest losses, and use deferral tools so the bill is managed, not stumbled into.

// THE TOOLKIT

The strategies we actually deploy — not a menu of theory.

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Which tools fit depends on your cost basis, your timeline, and what you want the money to do. Each has its own page with the mechanics and trade-offs.

HEDGING

Collars, covered calls, and protective puts cap the downside while you plan the exit.

DIRECT INDEXING

A loss-harvesting “bank” — harvest losses to offset the gains from trimming.

LONG/SHORT

Harvest losses on both sides: a long/short portfolio holds long and short positions to realize more offsetting losses than a long-only approach.

EXCHANGE FUNDS

Pool into a diversified fund and diversify in-kind after a holding period.

351 CONVERSION

Diversify without the lockup by contributing appreciated stock into a tax-deferred ETF.

CHARITABLE GIVING

Give the lowest-basis shares — often the most tax-efficient path for low-basis lots.

// THE FRAMEWORK

Not every share should be treated the same.

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04

A tranche approach sorts the position by cost basis and gain size, then matches each group to the strategy that fits it — rather than applying one decision to the whole holding.

MINIMAL GAINS

MODEST GAINS

BIGGEST GAINS

Sell first — Recently vested / higher-basis lots are the cleanest to diversify early.

Hedge or harvest — Collars or direct-indexing losses manage the middle over time.

Defer, gift, or hold — Charitable giving, deferral tools, or the estate step-up.

// LIQUIDITY

Reach the cash without triggering the gain.

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05

Borrowing against the position can fund a purchase or a tax bill without selling shares — though each method carries its own risks, and is financing, not diversification.

// VPF
// VPF

Variable prepaid forward — Cash today against shares delivered later, within a floor and cap on price.

// BOX SPREAD

Synthetic financing — Borrow through SPX options at near-risk-free rates, §1256 60/40 treatment — a fixed-term, portfolio-margin obligation, and a clear “not DIY” tool.

// SBLOC

Pledged asset line — A line of credit secured by the portfolio. Simpler and more common — but a falling share price can trigger a margin call.

// INSIDERS & AFFILIATES

If you’re an insider, the rules write part of the plan.

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06

Company insiders and affiliates face trading restrictions that shape when and how a concentrated position can be reduced.

  • 10b5-1 plans — A written plan adopted while you’re not aware of material nonpublic information can help create a compliant selling schedule.

  • Rule 144 — Affiliates’ sales of company stock may be capped by volume and reporting rules over a rolling period.

// WHY NOT TO DIY

Where smart people get this wrong on their own.

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07

Most mistakes aren’t about picking the wrong strategy — they’re about sequencing, tax interactions, and deadlines that are easy to miss.

// TAX LOSS

Harvesting that backfires

Direct indexing losses can be disallowed if the wash-sale window or replacement trades aren’t monitored.

// TIMING

Bunching gains into one year

Selling without a multi-year plan can push the same gain into a higher bracket than necessary.

// ACCESS

Missing trading windows

Insiders may only trade during open windows — and the calendar has to match the tax plan.

// COORDINATION

Treating each tool alone

Hedging, harvesting, and deferral interact; running one tool in isolation can create conflicts.

// FIRST PRINCIPLES

Diversification is the only free lunch in investing.

Diversification is the only free lunch in investing.

— Harry Markowitz, Nobel laureate

// THE TOOLBOX

Some of the tools at our disposal

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A quick comparison of the main strategies — what each does, who it fits, and how involved it is.

Strategy

What it does

Best for

Lockup

Options collar

Caps downside risk

Not ready to sell

Best for: Not ready to sell

Term of options

Lockup: Term of options

Direct indexing

Harvests offsetting losses

Ongoing diversification

Best for: Ongoing diversification

None

Lockup: None

Long/short

Harvests losses (long & short)

Bigger offsetting losses

Best for: Bigger offsetting losses

None

Lockup: None

Exchange fund

Pools into diversified fund

Patient, low-basis holders

Best for: Patient, low-basis holders

~7 yr

Lockup: ~7 yr

§351 conversion

Tax-deferred move to an ETF

Want diversification, no lockup

Best for: Want diversification, no lockup

None

Lockup: None

Charitable Giving (DAF/CRT)

Gives appreciated shares

Charitably inclined

Best for: Charitably inclined

Varies

Lockup: Varies

Variable prepaid forward

Cash now, shares later

Liquidity with a price floor

Best for: Liquidity with a price floor

Contract term

Lockup: Contract term

SBLOC

Borrows against the portfolio

Simple liquidity

Best for: Simple liquidity

Term of loan

Lockup: Term of loan

Box spread

Synthetic low-rate borrowing

Cheapest financing

Best for: Cheapest financing

Fixed term

Lockup: Fixed term

// THE TEAM

Advisors who’ve held the same kind of position.

Prospero’s advisors are former tech and startup professionals who have personally navigated equity compensation and concentrated stock — not generalists reading from a script. Concentrated-position work rarely fits one specialty. Hedging, tax-loss harvesting, charitable structures, and financing each call on different expertise, so plans here are built by the team rather than handed to a single advisor.

// THE TEAM

Advisors who’ve held the same kind of position.

Prospero’s advisors are former tech and startup professionals who have personally navigated equity compensation and concentrated stock — not generalists reading from a script. Concentrated-position work rarely fits one specialty. Hedging, tax-loss harvesting, charitable structures, and financing each call on different expertise, so plans here are built by the team rather than handed to a single advisor.

// THE TEAM

Advisors who’ve held the same kind of position.

Prospero’s advisors are former tech and startup professionals who have personally navigated equity compensation and concentrated stock — not generalists reading from a script. Concentrated-position work rarely fits one specialty. Hedging, tax-loss harvesting, charitable structures, and financing each call on different expertise, so plans here are built by the team rather than handed to a single advisor.

// NEXT STEP

Let’s discuss your position before the next vest.

Let’s discuss your position before the next vest.

An initial conversation takes 15 minutes, that's it.

// FAQ

Questions we get about concentrated positions.

How much is “too concentrated”?

How much is “too concentrated”?

There’s no single line, but many advisors start paying close attention when one stock is more than roughly 10% of your investable net worth. The right threshold depends on your goals and the rest of your finances.

There’s no single line, but many advisors start paying close attention when one stock is more than roughly 10% of your investable net worth. The right threshold depends on your goals and the rest of your finances.

Do I have to sell everything at once?

Do I have to sell everything at once?

No. Most plans reduce a concentrated position gradually over several years to manage both risk and the tax bill, rather than using a single all-or-nothing trade.

No. Most plans reduce a concentrated position gradually over several years to manage both risk and the tax bill, rather than using a single all-or-nothing trade.

What is a §351 ETF conversion?

What is a §351 ETF conversion?

It is a tax-deferred exchange in which you contribute appreciated stock into a newly formed ETF and receive diversified fund shares, subject to diversification tests and contribution requirements.

It is a tax-deferred exchange in which you contribute appreciated stock into a newly formed ETF and receive diversified fund shares, subject to diversification tests and contribution requirements.

Can I get cash without selling and triggering taxes?

Can I get cash without selling and triggering taxes?

Sometimes. Borrowing against the position — through an SBLOC, a variable prepaid forward, or more advanced financing — can provide liquidity without a sale, though each carries its own risks.

Sometimes. Borrowing against the position — through an SBLOC, a variable prepaid forward, or more advanced financing — can provide liquidity without a sale, though each carries its own risks.

What happens to the tax if I never sell?

What happens to the tax if I never sell?

Under current law, heirs may receive a step-up in cost basis at death, which can reset the embedded gain. Estate taxes and state rules can still matter, so this is not a substitute for planning.

Under current law, heirs may receive a step-up in cost basis at death, which can reset the embedded gain. Estate taxes and state rules can still matter, so this is not a substitute for planning.

7724 35th Ave NE #15170

Seattle, WA 98115-9955

(971) 716-1991

hello@prosperowealth.com

Prospero Wealth, LLC is an Investment Adviser registered with the SEC, principally located in the state of Washington. All views, expressions, and opinions included in this communication are subject to change.

The information on this site is not intended as tax, accounting or legal advice, nor is it an offer or solicitation to buy or sell, or as an endorsement of any company, security, fund, or other offering. Information provided should not be solely relied upon for decision making. Please consult your legal, tax, or accounting professional regarding your specific situation. Investments involve risk and have the potential for complete loss. It should not be assumed that any recommendations made will necessarily be profitable.

The information on this site is provided “AS IS” and without warranties either express or implied and the information may not be free from error. Your use of the information provided is at your sole risk.

© Prospero Wealth 2026. All rights reserved.

7724 35th Ave NE #15170

Seattle, WA 98115-9955

(971) 716-1991

hello@prosperowealth.com

Prospero Wealth, LLC is an Investment Adviser registered with the SEC, principally located in the state of Washington. All views, expressions, and opinions included in this communication are subject to change.

The information on this site is not intended as tax, accounting or legal advice, nor is it an offer or solicitation to buy or sell, or as an endorsement of any company, security, fund, or other offering. Information provided should not be solely relied upon for decision making. Please consult your legal, tax, or accounting professional regarding your specific situation. Investments involve risk and have the potential for complete loss. It should not be assumed that any recommendations made will necessarily be profitable.

The information on this site is provided “AS IS” and without warranties either express or implied and the information may not be free from error. Your use of the information provided is at your sole risk.

© Prospero Wealth 2026. All rights reserved.

7724 35th Ave NE #15170

Seattle, WA 98115-9955

(971) 716-1991

hello@prosperowealth.com

Prospero Wealth, LLC is an Investment Adviser registered with the SEC, principally located in the state of Washington. All views, expressions, and opinions included in this communication are subject to change.

The information on this site is not intended as tax, accounting or legal advice, nor is it an offer or solicitation to buy or sell, or as an endorsement of any company, security, fund, or other offering. Information provided should not be solely relied upon for decision making. Please consult your legal, tax, or accounting professional regarding your specific situation. Investments involve risk and have the potential for complete loss. It should not be assumed that any recommendations made will necessarily be profitable.

The information on this site is provided “AS IS” and without warranties either express or implied and the information may not be free from error. Your use of the information provided is at your sole risk.

© Prospero Wealth 2026. All rights reserved.