Adams Diversified Equity Fund, Inc. (ADX) operates as a publicly traded investment management firm, offering its services to other investment companies. It primarily focuses on the United States' public equity markets, investing in large-capitalization companies across various sectors. The firm employs a comprehensive, bottom-up stock selection process, which combines fundamental, technical, and quantitative analysis. Their investment decisions are heavily influenced by a deep dive into factors such as earnings growth potential, financial health, cash flow generation, broader macroeconomic trends, capital management strategies, market competition, and overall profitability. ADX enhances its proprietary in-house research with external insights to inform its investment choices. To measure its effectiveness, the firm benchmarks the performance of its portfolios against the S&P 500 Index. Founded in Baltimore, Maryland, in 1840, the company was historically known as The Adams Express Company.