One of the nation's largest and most successful hedge funds, Citadel Advisors, bought almost $23 million worth of BlackBerry Ltd (NYSE:BB) stock recently. That might come as quite a surprise to the average investor, considering how BlackBerry's traditional lines of business have evaporated over the past decade.

Even though every investor has different goals, resources, and tolerance for risk, it's at least worth digging into why such a successful group of investors would want to buy shares of the beleaguered communications company.

In the slideshow below, you'll see how Blackberry is attempting to reposition itself to remain relevant in arenas outside of its bread-and-butter U.S. consumer market.

Brian Stoffel has no position in any stocks mentioned. The Motley Fool has no position in any of the stocks mentioned. Try any of our Foolish newsletter services free for 30 days. We Fools may not all hold the same opinions, but we all believe that considering a diverse range of insights makes us better investors. The Motley Fool has a disclosure policy.