Zacks Investment Research is a financial research and analysis firm that provides investment research, analysis, and recommendations to individual investors, institutional clients, and financial advisors. The company was founded in 1978 and is based in Chicago, Illinois.Zacks is known for its proprietary stock ranking system, the "Zacks Rank," which is designed to identify the potential for earnings surprises in individual stocks. The Zacks Rank is based on a combination of earnings estimate revisions and other factors, and ranges from #1 (Strong Buy) to #5 (Strong Sell). Zacks also provides research and analysis on stocks, mutual funds, and exchange-traded funds (ETFs), as well as market analysis and industry trends.In addition to its research offerings, Zacks also operates a financial news website, Zacks.com, which provides breaking news, market analysis, and investment advice to individual investors. The site features a variety of tools and resources, including stock and mutual fund screens, portfolio management tools, and a comprehensive database of stocks and funds.Overall, Zacks Investment Research is a well-respected source of investment information and analysis, and has been a trusted resource for individual investors and financial professionals for over 40 years.