NRGD is an inverse leveraged take on the US Oil and Gas industry. Specifically, the fund tracks three times the inverse of the Solactive MicroSectors US Big Oil index, which selects the 10 largest qualifying stocks based on their free-float market cap level and equally weights them. The product isnt designed for long-term investors as the fund rebalances daily. As a result, compounding and path dependency make its long-term returns difficult to predict when compared with its underlying index.