This is a defined outcome buffer ETF that, based on the price performance of a major US index ETF, absorbs a set range of initial losses over a single outcome period while participating in gains up to a cap. It builds its outcome structure with FLEX options, and a new period begins in April.

It suits conservative, medium- to long-term investors who want to stay invested in the stock market while reducing downside volatility.

It is an actively managed ETF run by First Trust.

The fund does not directly hold the underlying US large-cap index ETF. Instead, it builds its outcome structure from a bundle of FLEX options that reference that ETF's price. In exchange for a buffer that absorbs a set range of initial losses over one outcome period, participation in gains is limited to a predetermined cap.

• A defined outcome structure that combines a downside buffer with an upside cap
• Management over a fixed outcome period using FLEX options

Assets under management (AUM) stand at $298.1M, and the total expense ratio is 0.85% per year.

The buffer and cap values are set at the start of the outcome period. If you buy partway through the period, the remaining buffer and cap may differ, so checking your entry timing is important.

The fund follows the movement of the underlying US large-cap index, but because of the buffer structure it tends to fall more gently than the market in downturns, while participation in further gains is limited once the cap is reached in strong markets.

Demand for defined outcome products tends to grow when market volatility comes to the fore, and money seeking loss protection often flows into the buffer ETF group. Fund flows vary with market conditions.

Its strength is reduced volatility through the downside buffer, while its weaknesses are the upside cap and the complexity of the options structure.

The three tickers shown in the table, BUFR, BUFD, and BUFQ, are buffer ETFs from the same First Trust family, and each differs in buffer structure and underlying index, such as a laddered buffer, a deep buffer, and a Nasdaq-based approach. The two Innovator tickers, SFLR and PJAN, use a managed floor and a power buffer approach respectively, and differ in buffer structure and reset timing. You can also consider DAPR as a deeper-buffer variant in the same April series and GTO as an active variant that emphasizes upward participation without a cap, and broad ETFs such as SPY, the core index ETF underlying the strategy, are also useful points of comparison.

Here are the points to review before investing in GAPR. Because the profit and loss mechanics of a defined outcome structure differ from those of a regular index ETF, it is wise to confirm the buffer, the cap, and your entry timing in advance.

The main risks are the opportunity cost caused by the cap in a strong market and the reduced buffer effect when entering midway through the period. The buffer is not a guarantee against loss but simply absorbs a set range, and declines beyond that range are reflected as losses.

This is a middle-ground product suited to investors who want to stay invested in the stock market while reducing downside volatility. However, it is advisable to fully understand how the upside cap and entry timing change the outcome before investing.