Concentrated Stock

Section 351 of the Internal Revenue Code allows property to move into a corporation in exchange for its stock without recognizing gain. The condition is that the transferors together control the corporation immediately after the exchange. In the fund context this is used at the launch of a new ETF. A group of investors contributes securities, receives ETF shares, and generally does not pay tax at that moment. The original cost basis carries over, so the gain is deferred rather than forgiven. Whether any particular transfer qualifies depends on facts specific to the investor and should be reviewed with a tax advisor.

Usually not on its own. The rules governing transfers to investment companies generally make the exchange taxable if it results in diversification of the transferors' interests. A contribution avoids that outcome when the portfolio being contributed is already diversified. The test allows no more than 25% of value in one issuer and no more than 50% in the five largest. A single large position fails that test. This is the most common misunderstanding we encounter. The position can still be included in a larger contribution. An investor contributing a diversified portfolio alongside it may include the concentrated name up to the 25% limit. That moves a slice of the gain into the ETF and leaves the rest for another route. An investor holding one appreciated stock and little else usually looks to an exchange fund or a long/short program.

They solve different problems. A 351 conversion suits an already diversified but low-basis portfolio and produces liquid ETF shares with no lockup. An exchange fund is built to absorb a genuinely concentrated position and requires a seven-year commitment in return. A 351 conversion is also only available during a sponsor's launch window, while exchange funds subscribe more regularly.

The main advantages are immediate diversification of a concentrated position, no tax due at contribution, and a structure with decades of precedent. The costs are a seven-year lockup, fund-level fees, and limited control over the resulting portfolio. Basis carries over, so the tax is deferred rather than eliminated. For investors who value liquidity and control, a 351 conversion or a tax-aware long/short account may fit better. For investors who want a single transaction and can accept the lockup, an exchange fund is often the simpler answer.

No. All three defer tax rather than eliminate it. A 351 conversion and an exchange fund both carry the original basis forward. In a long/short program, losses used to offset a sale are typically paired with reduced basis elsewhere in the portfolio. Deferral still has value, because the portfolio compounds on a larger base in the meantime. Separate provisions of the tax code can prevent deferred gains from ever being realized. The basis step-up at death and charitable gifts of appreciated stock are the common examples, and all three structures leave them available.

Yes. They are not mutually exclusive. Some investors contribute part of a position to an exchange fund and apply a tax-aware long/short program to the remainder. Others use the program's harvested losses against gains realized elsewhere. That includes gains from selling ETF shares received in a 351 conversion.

It depends on the size of the position relative to the capital funding the program. Market conditions and the pace of loss generation matter as well, and none of these is guaranteed. The sell-down typically takes one to three years. The expected path is typically modeled with the client before anything is implemented.

Terms vary by fund. Early redemption generally returns the investor's original shares, and some funds return the lesser of the value at contribution or at redemption. Charges may apply, and the diversification benefit largely unwinds. This is the structural price of the tax treatment and applies across sponsors.

The concentrated stock cannot produce a loss while it carries a large gain. The losses have to come from other holdings. Direct indexing builds a diversified long-only portfolio beside the position and sells holdings that fall below their cost. Those opportunities tend to shrink as the portfolio rises and fewer holdings trade below cost. A tax-aware long/short account adds short positions. A short can realize a loss when a stock rises, which means losses do not depend on a falling market. For the same capital this generally produces more losses than direct indexing. The investor then sells the stock in stages and offsets those gains with the realized losses. The tax is deferred rather than eliminated. Leverage and short selling also add risks that a long-only portfolio does not carry.

Managers running tax-aware long/short accounts include AQR (Flex), Quantinno (DEALS), Aperio at BlackRock, Cache, Frec, and NinePointTwo, among others. NinePointTwo's Prism is its proprietary tax-aware long/short strategy, and Prism Diversify applies it to unwinding a concentrated, low-basis position. Prism accounts start at $1 million and are custodied at Interactive Brokers. Our tax-aware long/short provider comparison sets out each manager's minimums, fees, leverage, custodian and how investors reach them.

Short selling and leverage introduce risks that a long-only pool does not carry, including the possibility that the long/short portfolio loses money. Tracking error against broad market indexes can be significant, and the tax outcome depends on individual circumstances and evolving tax law. These strategies are not suitable for all investors.