This ETF offers exposure to the U.S. retail industry, a targeted sub-sector of the consumer discretionary space that may have appeal for investors looking to bet on increased consumer consumption in the domestic market. XRT is probably too targeted for any investor with a long-term buy-and-hold strategy, but may have appeal for those looking to implement a sector rotation strategy or overweight high beta corners of the U.S. market. For those seeking exposure to retail, there are a number of options, including PMR and RTH. XRT is an attractive option because of the balanced nature of the exposure offered; this SPDR holds more individual holdings than either PMR or RTH, and employs an equal-weighted methodology that avoids concentration in a few big names (an issue that plagues RTH). Moreover, XRT is the most efficient from a cost perspective, besting PMR by a wide margin. If you're seeking exposure to the retail market, XRT is likely the best choice out there.