How Do Defined Outcome ETFs Protect Your Portfolio?
What you need to know about these growing risk management tools.
Key Takeaways
- The defined outcome Morningstar Category is the largest and one of the fastest growing ETF categories, with 420 funds and by the end of 2025.
- Defined outcome ETFs offer downside protection but charge high fees and cap your upside potential.
- Ideal for risk-averse or short-term investors, these ETFs provide equity exposure with built in guardrails.
What Are Defined Outcome ETFs and How Do They Work?
Defined outcome ETFs, also known as "buffer ETFs," have rapidly become popular risk management tools for investors and advisors. These funds use options contracts to protect against a specific level of loss in exchange for a cap on potential gains. This creates a narrower, more predictable range of outcomes, which can appeal to risk-averse investors.
But are they right for you? While their growth shows many investors are willing to pay for protection, these ETFs come with high fees and specific rules. As one of the largest and fastest-growing ETF categories, it's crucial to understand how they work before you invest.
For a deeper dive into the category, download our Guide to Defined Outcome ETFs.
What Are the Main Types of Defined Outcome ETFs Available?
Providers and Fees
First Trust and Innovator were the pioneers in this space, and their first-mover advantage has allowed them to capture 86% of the market's assets. Their dominance persists despite them charging some of the highest fees, often averaging 0.80% or more.
While new providers have entered the market with more competitive pricing, the top eight firms still charge an average fee of at least 0.50%. At an average of 0.75% across the category, defined outcome ETFs are expensive compared to both passive funds and many actively managed alternatives.
How Buffer ETFs Are Structured
The investor's experience starts with the ETF's reference asset. This is the index fund returns are based on. The S&P 500 is the most common, with 74% of defined outcome ETFs tracking its performance. The fund then uses options to create its specific risk-and-return profile.
Key structural elements to understand include:
- Outcome period: The defined results are only guaranteed over a specific period, which matches the lifespan of the underlying options contracts. To get the advertised outcome, you must buy the ETF on day one and hold it for the entire period. One year is the most common, but quarterly and "laddered" options are also available.
- Buffer levels: This is the amount of downside protection the ETF offers. For example, a 10% buffer means the fund absorbs the first 10% of losses in the reference asset, before fees. Wider buffers offer more protection but come with a lower cap on potential gains. The most common buffer levels are 10% to 20%.
How Do Defined Outcome ETFs Balance Risk and Return?
Opportunity Cost Can Be High
For some investors, the peace of mind a buffer provides might be worth the forgone gains. However, over extended time horizons, the total returns of defined outcome ETFs will likely fall short of uncapped stock portfolios. So, investors must consider the significant opportunity cost of the capped upside potential.
Buffer Levels Determine Your Risk Profile
An ETF's buffer level is a direct indicator of its risk. A larger buffer will lead to shallower losses during market downturns compared to a smaller one. The trade-off is that larger buffers also come with lower caps on returns during positive markets. It’s critical to choose the buffer level that aligns with your personal risk tolerance.
Financial advisors can give clients a better understanding of risk comfort and trade-offs with a data-backed risk profile through our Portfolio Risk Tools.
Hype or Substance?
So, do these ETFs deliver on their promises? Our research shows that standard buffer ETFs have proven their ability to reduce volatility and limit drawdowns. They are reliably less volatile than their reference assets in both up and down markets.
However, the results are not always straightforward. The distribution of outcomes for individual buffer ETFs can be wide, depending heavily on the specific period tested. While the average results confirm that these ETFs do what they claim, the variation highlights an embedded timing risk. Buying in at the wrong time may lead to a disappointing or unexpected outcome.
How do you Implement Defined Outcome ETFs?
Defined outcome ETFs are best used as a short-term tool rather than a core long-term holding. Their primary benefit is shielding portfolios during periods of uncertainty.
Trading Upside for Downside Protection
Investors in buffer ETFs pay for protection in two ways: through the annual fee and the capped return potential. Because of this forgone upside, those with longer investment horizons should probably avoid a strategic allocation. While the ETFs performed well during stress periods like 2022, they’re best suited for risk-averse investors or those with short-term goals.
Diversifying Conservative Portfolios
While they may not add much to a stock-heavy portfolio, defined outcome ETFs can be a valuable addition for conservative investors. For those with a short investment horizon, these funds can deliver some upside from equities while protecting against significant losses. Adding a standard buffer ETF to a conservative portfolio (e.g., 80% bonds) has historically delivered greater upside without sacrificing much protection during downturns.
Defined Outcome ETFs Still Help Protect Downside
Source: Morningstar Direct. Data as of Dec. 31, 2025.
Laddered ETFs Can Ease Implementation
Timing risk is a major concern with these funds due to their rigid outcome periods. Laddered ETFs offer a solution. These products stagger multiple monthly standard buffer ETFs into a single fund. This type of strategy comes with a higher price tag, but it smooths out returns and eliminates the risk of a poor outcome tied to a single vintage. It also simplifies rebalancing for advisors, making implementation much easier.
What Are the Pros and Cons of Investing in Defined Outcome ETFs?
Defined outcome ETFs are not for everyone. For the right investor in the right circumstance, they can be an effective tool to control risk. For others, the high costs and capped upside are not a worthwhile trade-off.
Here are the key pros and cons to consider:
Pros:
- Provides explicit and reliable risk control if held for the full outcome period.
- Offers known outcomes, which can help risk-averse investors stick to their plans.
- Allows investors with short time horizons to gain equity exposure with guardrails.
- A variety of structures lets you tailor an investment to a specific risk tolerance.
Cons:
- High opportunity cost, especially over the long run, due to capped gains.
- Expensive, with an average annual fee of 0.75%.
- Large swings in market volatility and interest rates could negatively affect cap levels.
Common Defined Outcome ETF Use Cases
Ultimately, the main selling point of buffer ETFs is their predictability. As the market evolves, investors should consider prioritizing funds that are transparent and behave as expected, especially when markets get choppy.
