Exchange Funds for Concentrated Executive Stock

You have $8 million in employer stock. Your cost basis is $400,000 — RSUs that vested at $5 per share, now trading at $100. Selling creates a $7.6 million capital gain: roughly $1.8 million in federal tax before state. You don't want to sell. You also can't afford not to diversify. This is the most common financial problem at the C-suite level, and the reason exchange funds exist.

An exchange fund lets you contribute those concentrated shares into a limited partnership pooled with other concentrated-stock holders. In return, you receive a partnership interest representing a pro-rata share of a diversified portfolio. Under IRC §721(a), no gain is recognized at the time of contribution. You get instant diversification with no immediate tax bill — in exchange for a 7-year lock-up and ongoing management fees.

Exchange funds don't eliminate the tax. They defer it and spread it across a diversified basket of securities, where it can be managed over time, potentially stepped up at death, or offset by future losses. That distinction matters enormously to how you plan around them.

How an exchange fund works

An exchange fund is structured as a limited partnership. Each investor contributes a concentrated stock position. The fund pools those positions across dozens of contributors — executives at Apple, Microsoft, Tesla, Nvidia, and hundreds of other companies — creating diversification through aggregation. No selling occurs at contribution. Contributors receive limited partnership units representing their pro-rata share of the fund's total portfolio.

After the required holding period (typically 7 years), contributors can request redemption. Instead of receiving cash, they receive shares of a diversified portfolio of individual stocks — a basket that broadly resembles the S&P 500 or Russell 3000, depending on the fund's composition. No selling occurs at redemption either. You walk away holding 40–80 individual stock positions rather than one concentrated position.

The tax is deferred at contribution and at redemption. It is eventually realized when you sell the distributed shares — but those sales are spread across many securities over time, allowing for strategic harvesting, bracket management, and estate planning that simply isn't possible with a single large position.

The tax foundation: IRC §721 non-recognition

IRC §721(a) provides the statutory basis: no gain or loss is recognized by a partner contributing property to a partnership in exchange for a partnership interest.¹ This is the same rule that governs any partnership formation — if you contribute cash, equipment, or real estate to a partnership, no gain is triggered at the moment of contribution.

For an exchange fund, the "property" is your appreciated employer stock. Contributing $8 million of stock (basis: $400K) to the partnership triggers no immediate gain recognition under §721(a). Your $7.6 million of built-in gain simply carries into the partnership.

Your basis in the partnership interest equals the basis in the contributed stock — $400,000 in this example. The built-in gain doesn't disappear; it attaches to your partnership interest and will eventually be recognized when you sell the distributed shares after exit.

The 20% illiquid asset requirement

IRC §721(b) creates an exception to the non-recognition rule: if the partnership would be treated as an "investment company" under IRC §351(e), gain is recognized at contribution.¹ Under §351(e), an investment company is one where more than 80% of assets (by value) consist of marketable stocks, securities, or certain other liquid assets.

Exchange funds avoid §721(b) treatment by structuring the fund to hold at least 20% in non-marketable assets — typically commercial real estate, private equity, or other illiquid investments. This is why you'll see exchange fund prospectuses requiring the fund to allocate roughly 20% to real estate or private credit: it's not a preference, it's the structural requirement that makes the §721(a) treatment available.

The practical implication: exchange fund investors are exposed not just to the diversified public equity portfolio but also to whatever private assets the fund holds to satisfy the 20% requirement. The quality of the fund manager's real estate and private portfolio is a meaningful dimension of fund selection, not an afterthought.

The 7-year lock-up — IRC §737

IRC §737 is the other critical statutory provision governing exchange funds.² It provides that if a partner who contributed appreciated property to a partnership receives a distribution of other property from the partnership within 7 years of that contribution, the contributing partner must recognize gain equal to the lesser of:

1. The net precontribution gain — the built-in gain at the time of contribution; or
2. The excess of the fair market value of the distributed property over the contributing partner's adjusted basis in the partnership interest.

In plain English: if you exit the fund within 7 years of contributing your appreciated stock, you recognize gain. That gain wipes out most or all of the tax benefit of contributing in the first place.

After 7 years, §737 no longer applies. The contributing partner can receive the diversified basket of stocks without triggering immediate gain recognition — which is why exchange fund lock-ups are structured at exactly 7 years. The 7-year figure isn't an arbitrary market convention; it's a statutory threshold.

Parallel to §737, IRC §704(c)(1)(B) prevents the partnership from distributing your contributed stock to another partner within 7 years of your contribution without recognizing built-in gain.³ Together, these two provisions create a bilateral 7-year quarantine period on the contributed shares.

Your basis after the fund

When you exit the fund after 7 years and receive a diversified basket of stocks, your total basis across all received shares equals your original basis in the contributed stock — $400,000 in the example above. That $400,000 is allocated across the received shares pro-rata to their fair market values at distribution.

If the fund is worth $12 million at exit and you hold a 5% interest ($600,000 value), you receive approximately $600,000 of diversified stocks with an allocated basis of $400,000 × (your share of total fund assets). Each individual stock in your basket carries a very low basis.

The strategic flexibility at this point is significant. You can:

• Hold and harvest: Sell the losing positions first, hold the gainers, use losses to offset gains — the same strategy as direct indexing, but now applied to a diversified basket rather than a single stock.
• Donate appreciated shares: Contribute your highest-appreciation holdings to a DAF or CRUT, eliminating that gain entirely.
• Hold for estate step-up: If you expect to hold until death, the stepped-up basis at death eliminates the embedded gain entirely — at $15M per person under the permanent OBBBA estate exemption (2026).⁴
• Spread sales across retirement years: Realize gains in lower-bracket years post-retirement — potentially the 15% LTCG bracket rather than 20% + NIIT.

2026 federal capital gains tax context

For most executives selling concentrated positions, the applicable federal rate is 20% LTCG + 3.8% NIIT = 23.8% federal. For 2026, the 20% LTCG bracket applies to taxable income above $533,400 (single) or $613,700 (MFJ). NIIT applies to modified AGI above $200,000 single / $250,000 MFJ — not inflation-indexed.⁵

State tax compounds the math. California taxes capital gains as ordinary income (up to 13.3%); New York at ~10.9%. On an $8M gain, the combined federal-plus-California rate is approximately 37%, or $3.0 million in tax. That is the tax the exchange fund is deferring.

Section 16 and Rule 144 considerations for insiders

For executive officers subject to Section 16, contributing employer stock to an exchange fund is a reportable transaction. The SEC generally takes the position that such a contribution constitutes a "sale" for Section 16(b) short-swing profit purposes, depending on the structure of the exchange and whether it qualifies for an exemption under Rule 16b-3.

Rule 144 volume limitations also apply to the contribution if the stock is restricted or control securities: the quarterly sale limit of 1% of outstanding shares (or 4-week average trading volume, whichever is greater) must be observed. Contributing a large block to an exchange fund in a single quarter can exhaust the Rule 144 volume allowance for that period.

Practically, this means:

• Coordinate the contribution with your company's trading window and pre-clearance policy.
• If you are in a 10b5-1 plan, the plan should address the contribution or be suspended during it.
• For 10b5-1 trading plans that are already running, contributing a large block to an exchange fund outside the plan may be viewed as inconsistent with the single-plan intent of the 2023 SEC amendments.
• Form 4 must be filed within 2 business days of the contribution.

Exchange fund vs. other diversification strategies

Who qualifies and how to access exchange funds

Exchange funds are private placements available only to accredited investors — generally meaning $1M+ net worth excluding primary residence, or $200K+ annual income ($300K joint). The minimum contribution is typically $1–5 million of appreciated stock, with some funds requiring $3–10 million.

Access is primarily through large private wealth managers: Goldman Sachs (Defined Wealth Management), Morgan Stanley Wealth Management, Eaton Vance (now part of Morgan Stanley), and Aperio (now BlackRock). These funds are not available through retail brokerages. You generally need to be a client of the managing firm's private wealth division.

Funds accept contributions during specific windows — often quarterly or semi-annually. Contribution timing affects both the 7-year lock-up start date and the composition of the fund at the time you enter. Newer funds with more diverse contributor bases offer better diversification than older funds dominated by one or two sectors.

Risks and limitations

• Illiquidity: Seven years is a long time. Life events — divorce, health, a large investment opportunity — may require access to capital the exchange fund can't provide. Assess your liquidity needs across the lock-up period before committing.
• Manager risk: The 20% illiquid component (real estate, private equity) is only as good as the manager's underwriting. If the private assets perform poorly, your exit value is lower.
• Concentration in contributions: If the fund received heavy contributions of tech stock from other executives at the same time, the "diversified" fund may actually be concentrated in that sector. Ask for the fund's composition before committing.
• Fees: Annual management fees of 1.0–1.5% compound over 7 years. On a $5M position, that's approximately $385,000–$580,000 in total fees over the lock-up period, which must be weighed against the tax deferral benefit.
• IRS scrutiny: The §721(b) investment company boundary is governed by the fund's portfolio compliance — not yours. If the fund manager fails to maintain the 20% non-marketable threshold, §721(b) treatment could be triggered retroactively, with severe consequences. Established fund managers have clean track records on this; smaller or newer operators may not.
• No "undo" provision: Once contributed, you cannot undo the contribution. If your employer stock doubles during the 7-year lock-up, you don't benefit from that appreciation — the fund dilutes it across the diversified portfolio.

Sources

1. IRC § 721 — Nonrecognition of gain or loss on contribution. Cornell Legal Information Institute. §721(a) provides general non-recognition; §721(b) provides the investment company exception requiring funds to avoid holding 80%+ marketable securities.
2. IRC § 737 — Recognition of precontribution gain in case of certain distributions to contributing partner. Cornell Legal Information Institute. Codifies the 7-year rule: gain recognized if contributing partner receives other property from partnership within 7 years of contributing appreciated property.
3. IRC § 704(c)(1)(B) — Special rules for contributed property. Cornell Legal Information Institute. Prohibits distribution of contributed appreciated property to another partner within 7 years without recognizing built-in gain to the original contributor.
4. IRS Estate Tax. $15M per-person estate and gift tax exemption made permanent by the One Big Beautiful Bill Act (OBBBA, July 2025). Stepped-up basis at death eliminates embedded capital gains in inherited assets under IRC § 1014.
5. IRS Topic 409 — Capital Gains and Losses. 2026 LTCG bracket thresholds per IRS Rev. Proc. 2025-38: 20% above $533,400 (single) / $613,700 (MFJ). NIIT 3.8% per IRC § 1411; threshold $200,000 single / $250,000 MFJ (not inflation-indexed). Values verified April 2026.

Tax law and fund structures verified as of May 2026. IRC §§ 721, 737, and 704(c)(1)(B) are stable long-standing provisions not modified by OBBBA, SECURE 2.0, or recent legislation. Exchange fund availability, minimums, and fees reflect current offerings from established managers and are subject to change.