Shares of Green Mountain Coffee Roasters (Nasdaq: GMCR) are down this week, while frenemy Starbucks (Nasdaq: SBUX) is trading higher, after the latter began selling a single-cup beverage brewer this week. While the two companies have played nicely in the past, and have suggested they will going forward, as well, this move ups the ante a bit. 

At the end of the day, the team wants one question answered: How much of Green Mountain's market share can Starbucks take?

With Green Mountain as cheap as it's ever been, many investors are wondering whether this is the end of the former market darling, or the perfect entry point for an enormous rebound. You can find our recommendation for how to play the company in our new premium research report. In it, you'll find everything you need to know about Green Mountain, including whether it's a buy at today's prices. Click here for instant access.