Marc Gerstein, a quant, is an investment analyst and commentator with specialization in rules-/factor-based equity investing strategies and stock screening. He is the Director of Research at Chaikin Analytics, where he consistently generates ideas with the firm’s Power Gauge ranking system as well as the bottom-to-top approach. Marc also developed StockScreen123, a low-cost stock screening platform aimed at individual investors. Marc Gerstein is editor of Forbes Low Priced Stock Report, research director at Portfolio123 and author of Screening the Market.