One of the best ways to spot opportunity is by keeping tabs on stocks with raised price targets from leading firms like Barclays (NYSE:BCS).Oftentimes, a firm, like Barclays will revise targets higher if the financial health of the covered stock has become far more favorable.Or, perhaps they liked what the covered company said in a recent meeting. Or maybe they’re seeing favorable emerging trends in the industry.Whatever the case may be, upgraded prices will often lead to increased buying interest from inve ...