Financial advisors have begun to embrace the concept of buffered ETFs. These specialty funds track equity indices, capping the potential upside, which pays for downside protection (the buffer) if the index experiences a decline.

While this concept has practical portfolio applications, these funds have another unique feature advisors should know about: they mature (and reset).

A buffered ETF has a stated cap and buffer that stays in place for a specific period, in many cases one year. This means the cap and buffer reset at the end of the period (at maturity). It also means that investors buying the ETF any time after the first day of the period should be aware of the remaining cap and buffer for that ETF for the rest of the period they bought within.

Here’s an example: let’s say a fund that caps its return for the year at 10% has already experienced a 5% decrease since the start of the period. An investor purchasing the fund at that point has a 15% cap for the remaining period – this is a good thing. The opposite is also true. Had the fund already experienced an 8% gain in the period, the buyer would only have the potential to gain 2% for the remainder of the period.

Finsum: Buffered ETFs have a unique feature that every financial advisor should know about: they have a maturity date when their upside cap and downside buffer resets.