The Vanguard Energy ETF tracks the stocks of companies such as oil rig builders, drill-equipment makers and oil refiners, explains Kaitlin Pitsker for Kiplinger. As of 2015, large market capitalization stocks, including ExxonMobil and Chevron, account for one-third of the fund’s value.
ExxonMobil makes up 21.27 percent of the fund’s assets while Chevron accounts for 11.05 percent of the fund, according to Morningstar. Other notable gas and oil companies in the fund include Schlumberger at 6.71 percent and ConocoPhillips at 4.61 percent. Energy stocks account for 98 to 99 percent of the fund’s assets, and the managers of the fund focus on energy stocks when deciding what companies to add or remove from the fund.
Other sectors included in the fund are technology stocks, industrials, consumer cyclical and basic materials, states Morningstar. However, the other sectors only account for less than 2 percent of the fund’s assets. The fund also focuses on U.S. stocks, which account for 99 percent of the assets. The fund holds less than one-tenth of one percent in cash. The index the fund follows is the MSCI U.S. Investable Market Energy Index, which holds the stocks of small, mid-size and large-cap companies in the energy sector, notes Yahoo Finance.