The pitch: you have $3 million of one stock with a $1 million basis. Instead of selling, you contribute the shares to a pooled fund. Other concentrated holders do the same, and you walk out with a partnership interest in a diversified basket. No sale, no gain, no tax - a contribution to a partnership isn’t a taxable event. Day one, you’re diversified. Cache built a brand on this, and the mechanics are real.
Now the catch list.
First you have to get in. Funds raise capacity in windows, and acceptance committees cap how much of one name they’ll take. The hot stock everyone is trying to unload is exactly the one they don’t want. So you apply, and you can sit there waiting for a slot while your concentrated position keeps doing whatever it’s doing. The exit you chose for safety can start with a waitlist.
Then the lockup, which is the law, not a policy. If the fund sells your contributed stock within seven years, the tax code hands the gain back to you personally. So funds lock you in for seven years, and if you bail early you can get handed your own stock back. The liquid alternative to selling is liquid in year eight.
You don’t pick the basket. Your interest tracks a pool of whatever other people contributed, plus up to 20% in qualifying assets like real estate that the fund holds to keep its status. You swapped a stock you understood for a grab-bag you didn’t choose, with a real-estate kicker.
The fee never sleeps - while you’re in. Around 0.85% a year, every year, on the whole position. Over 20 years the drag costs more than the diversification is worth: run it against doing nothing and the exchange fund finishes at $37.0 million against $38.3 million for the person who just held. You paid $1.3 million to lose to inertia.
The exit does improve after year seven. You can redeem in kind: the fund hands you a basket of its underlying stocks, the distribution is tax-free, and the AUM fee stops - you’re just a person holding stocks now. But your old basis travels into that basket. The exchange didn’t eliminate the $2 million embedded gain; it deferred it. The only escapes are selling later or the step-up at death. An exchange fund isn’t a tax dodge. It’s a tax waiting room with a fee at the door.
What it sells is real: day-one diversification once you’re in, zero ongoing effort, no leverage, no tax lots to manage. If the goal is sleeping better this week and you don’t mind the handcuffs, it does the job. Just price the job: a waitlist to enter, seven years of lockup, a portfolio you didn’t pick, and a fee that compounds past the tax you were avoiding.
Assumptions
The question is what diversification costs, how long you wait and what tax liability follows you out.
- Starting position: $3 million of stock less $1 million of basis leaves $2 million of embedded gain. The illustration assumes an eligible contribution accepted by the fund, with tax deferral rather than a basis reset.
- Fees: The original illustration uses roughly 0.85% annually. Cache’s published schedule , checked October 2, 2026, lists a standard 0.60% management tier for $1 million-$4,999,999 of contributions, including this $3 million example, plus typical 0.10%-0.15% operating costs. Management falls to 0.25% after seven years if you stay. Discounts, stock-specific premiums and fund terms can change the bill. The flat 0.85% assumption for 20 years does not reproduce that current schedule; offering documents govern actual costs. Fees can be higher than 0.85% at smaller contribution tiers: 0.85% management plus typical operating costs is about 0.95%-1.00% at $250,000-$499,999, and 0.95% management plus operating costs is about 1.05%-1.10% at $100,000-$249,999. Cache also reports stock-specific high-demand premiums , but does not publish their magnitude. For this article’s $3 million case, the standard management-plus-operating total is about 0.70%-0.75%, below 0.85%; a stock-specific quote is needed before calling the original assumption conservative. ETF costs should not simply be added again where Cache offsets them through a management-fee reduction. Lower fees improve the exchange fund’s modeled outcome and weaken the claimed $1.3 million shortfall versus holding; whether they change the ranking requires rerunning the original model.
- Seven years and allocation: Cache’s explanation distinguishes an early exit returning original stock from a diversified in-kind redemption after seven years. Seven years is a tax threshold, not a guarantee that every transaction before or after it is tax-free. The article’s 20% qualifying-asset figure needs the specific fund’s asset tests and offering documents; it is not a verified allocation for every Cache fund.
- Terminal wealth: $38.3 million minus $37.0 million is $1.3 million. The 20-year terminal values depend on starting wealth, returns, distributions, fee changes, redemption timing, basis allocation and the death/step-up endpoint. The original return and tax schedules are not published here, so the figures are estimates, not a reproducible current-terms comparison. Holding the original stock also retains concentration risk.
- Exit: In-kind redemption defers rather than cancels the embedded liability. Cash sales, gifts, estate treatment and fund-specific distributions need their own analysis. The AUM fee stops only on the assets actually redeemed; staying invested can still carry a fee.
Have better inputs, a missing cost or evidence that changes the result? Share it . We will update our assumptions and conclusions to reflect the most accurate representation.