This ETF offers a way to access U.S. companies engaged in the extraction of metals and other natural resources. As such, XME can be useful as a tool for tilting portfolio exposure towards the mining sector or betting on a short term surge from mining stocks. Because the underlying companies tend to become more profitable when natural resource prices climb, XME may have appeal as a hedge in inflationary environments as well. There are several noteworthy items regarding XME's composition. First, the focus solely on U.S. stocks excludes many of the world's largest commodity producers. Second, the equal-weighted methodology of the underlying index ensures balanced exposure to the mining sector, as no single name accounts for a significant portion of total assets. That can be appealing for investors seeking broad-based representations. Investors seeking more general exposure to commodity producers may take a look at HAP or CRBQ, while EMT can be used to gain exposure to the emerging market segment of this sector.