The Zacks Philosophy- The Zacks tools are based on Zacks’ basic philosophy that Earnings Per Share estimates are the most powerful force impacting stock prices. For a more detailed explanation on Zacks’ EPS philosophy and how to use EPS to make money, click here. The Zacks Rank- The Zacks Rank is a quantitative model based on trends in estimate revisions and EPS surprises that classifies stocks into five groups, 1 - 5. The Zacks Rank can be used to predict future movements in stock prices. Please click here for a more detailed explanation of the Zacks Rank and how to use it. New Investor? If you are a new investor and would like some basic investment tips and advice, please visit our Investing 101 pages. You can also visit our Glossary of Financial Terms Using the Zacks Tools The following offers easy to understand explanations of how to best use the tools available to you on our premium service, the Zacks Advisor. Zacks’ Model Portfolios- What to buy Using Zacks’ Email alerts- When to sell How to Research a Company How to screen stocks online using 82 criteria