Target Index The Energy Select Sector Index (IXETR) is provided by S&P Dow Jones Indices and includes domestic companies from the energy sector which includes the following industries: oil, gas and consumable fuels; and energy equipment and services.
They use swaps to try and achieve 2 x's that index.
This ETF typically follows oil but not always. The other day stocks were up yet oil was down. It follows energy stocks.