Fed testimony, Ukraine main focus for traders By: CNBC.com News May 02, 2014 at 18:36 PM EDT Testimony from Federal Reserve Chair Janet Yellen and Ukraine are what traders say could most affect markets in the week ahead. Read More >> Related Stocks: AFG AMC Entertainment Holdings AMC Networks Cl A Agrium, Inc. American International Group Anadarko Petroleum Anheuser-Busch Inbev S.A. ADR Arcelor Mittal Berkshire Hathaway CBOE Global Markets Inc CBS Corp Chesapeake Energy DIRECTV Dean Foods Company Devon Energy Discovery Communications Dish Network Corp Duke Energy Echostar Corp Electronic Arts Fireeye Inc First Solar Groupon Cl A Intercontinental Exchange Keurig Green Mountain Marathon Oil Molson Coors Brewing Mondelez International Monster Beverage Mosaic Co NVIDIA Corp News Corporation Occidental Petroleum Pfizer Potbelly Corp Precision Castparts Prudential Financial Ralph Lauren Corp Rowan Companies Sentinelone Inc Cl A Shutterstock Inc Sotheby's Holdings Symantec Corp Tableau Software Inc Cl A Telefonica S.A. ADR Tenet Healthcare Tesla, Inc. The Priceline Group Toyota Motor Corp Ltd Ord ADR Transocean Ltd Twitter, Inc. Tyson Foods Walt Disney Wendys Company Whole Foods Market