The Direxion Daily Aerospace & Defense Bull 3X Shares (NYSEARCA: DFEN ) is a leveraged ETF that aims to track the US Aerospace and Defense sector and, in my opinion, as of now represents a good investmentMSc Quantitative Finance student. I work on machine learning and deep learning applications to financial markets, with published research on commodity price forecasting and derivatives hedging. On Seeking Alpha I share stock ideas and perspectives shaped by a quantitative, research-driven approach, while al ...