Direxion Energy Bull 2X ETF (ERX) Stock Price, Quote, News & History | Benzinga

The Index is provided by S&P Dow Jones Indices (the Index Provider) and includes domestic companies from the energy sector which includes the following industries oil, gas and consumable fuels, and energy equipment and services. The Index is one of eleven Select Sector Indexes developed and maintained in accordance with the following criteria (1) each of the component securities in the Index is a constituent of the S&P 500 Index and (2) the Index is calculated by the Index Provider based on a proprietary modified market capitalization methodology which means that modifications may be made to the market capitalization weights of single stock concentrations in order to conform to the requirements of the Internal Revenue Code of 1986, as amended.