First Trust Exchange-Traded Fund VI - First Trust Nasdaq Oil & Gas ETF is an exchange traded fund launched and managed by First Trust Advisors LP. The fund invests in public equity markets of the United States. It invests in stocks of companies operating across energy, energy equipment and services, oil and gas drilling, oil and gas equipment and services, oil and gas machinery and equipment, oil, gas and consumable fuels, oil and gas exploration and production, oil and gas refining and marketing, oil and gas pipelines, consumer discretionary, retailing, specialty retail, oil and gas retail, oil and gas storage and transportation, automotive retail sectors. The fund invests in value, growth and volatile stocks of companies across diversified market capitalization. It seeks to track the performance of the Nasdaq US Smart Oil & Gas Index, by using full replication technique. First Trust Exchange-Traded Fund VI - First Trust Nasdaq Oil & Gas ETF was formed on September 20, 2016 and is domiciled in the United States.