As previously reported, Janney Capital analyst Paul Knight upgraded Bruker to Buy from Neutral, recommending that the post-earnings weakness stock be used as a buying opportunity. Bruker was able to earn an "okay" 20c per share despite challenging European Academic and Industrial markets and, most importantly, its operating margins of 10.8% were flat year-over-year, Knight noted. The fact that the company was able to maintain bottom-line guidance in a difficult revenue environment indicates the culture at Bruker "isn't perfect but it's changing," adds Knight, who keeps a $28 fair value estimate on the stock.