Core Insights - The article reassesses the ALPS Sector Dividend Dogs ETF (SDOG), focusing on its performance and investment strategy [1] Group 1: Investment Strategy - The author emphasizes the importance of analyzing Free Cash Flow and Return on Capital for deeper investment insights [1] - The approach includes identifying underappreciated equities with strong upside potential and overappreciated companies with inflated valuations [1] Group 2: Sector Focus - The research pays particular attention to the energy sector, including oil & gas supermajors and exploration & production companies [1] - The analysis also covers various other industries, such as mining, chemicals, and luxury goods [1]