Buffered ETFs are seeing explosive growth. The category had less than $200 million in assets and now has $36.7 billion. The major appeal is that they allow investors to remain fully invested while offering downside protection. 

However, they do tend to have higher costs and may not be appropriate for many investors. Buffered ETFs follow a benchmark while also using stock options to limit downside risk and capping gains on the upside. 

These products are modeled after structured notes, which have proven to be popular among high net worth and institutional investors. Like structured notes, buffered ETFs follow some sort of lifecycle, which means that advisors and investors have to consider market conditions when making a decision. This means they are not appropriate for rebalancing or dollar cost averaging strategies. An important consideration is the start date of the buffer ETF and the performance of the underlying index since the start date, as this could affect the value and desirability of the buffer.

According to Jeff Schwartz, president at the investment analytics firm Markov Processes International, “There is a lot to understand with buffer ETFs, and the history of structured products shows that both advisors and investors often do not fully understand the nuance of these vehicles." 

Finsum: Buffered ETFs are experiencing a surge in growth. The upside is that they allow investors to remain fully invested while capping the downside. However, there are also some downsides to consider.