Building a successful investment portfolio takes skill and hard work, no matter if you're a growth, value, income, or momentum-focused investor. How do you find the right combination of stocks that will generate returns that could fund your retirement, or your kids' college tuition, or your short- and long-term savings goals? Enter the Zacks Rank. What is the Zacks Rank? A unique, proprietary stock-rating model, the Zacks Rank uses earnings estimate revisions, or changes to a company's earnings expectations ...