Benzinga's Top Upgrades By: Benzinga via Benzinga June 24, 2015 at 10:02 AM EDT Analysts at Topeka Capital upgraded Merge Healthcare Inc. (NASDAQ: MRGE) from Hold to Buy. Merge Healthcare shares closed at $4.54 ... Read More >> Related Stocks: Applied Materials Bhp Billiton Ltd ADR Comerica Electronic Arts Franco Nev Corp McCormick & Co Royal Caribbean Cruises Ltd Stantec Vmware Inc