It is not often that positive guidance can drive a stock by nearly 50% in a single day, but remarks made by First Solar (NASDAQ:FSLR) had precisely that impact. The news bodes well for the industry, and the company is not resting, but aggressively pursuing the add-ons it needs to succeed. After such a big run, you must ask yourself if this is only the beginning or is it rather a blip that will soon be corrected.

In the video below, Fool.com contributor Doug Ehrman discusses the most important elements of the company's announcements and where the stock may go from here.