This ETF is designed to track the largest 25 U.S.-listed oil service companies. As such, investors should not expect a deep portfolio, but it is important to note that the fund heavily favors its top ten holdings. It is also important to mention that about one quarter of the fund is invested in foreign equities, as several firms on the list are cross listed on foreign exchanges, or hold their headquarters beyond our borders.
Looking under the hood, OIH focuses on large cap firms with a fair amount of giant and mid cap representation as well. With major holdings in large energy companies, this ETF is able to pay out a handsome dividend yield and may be a useful tool for boosting income in a portfolio. As far as energy holdings are concerned, OIH would probably not be considered a core position, but rather a tactical tool for segmenting a select few companies under one roof.