The DividendRank formula at Dividend Channel ranks a coverage universe of thousands of dividend stocks, according to a proprietary formula designed to identify those stocks that combine two important characteristics — strong fundamentals and a valuation that looks inexpensive. Walgreens Boots Alliance presently has a stellar rank, in the top 10% of the coverage universe, which suggests it is among the top most "interesting" ideas that merit further research by investors.Start slideshow: 10 Oversold Dividend ...