Many of the worst-performing IPO stocks from 2011 have recently soared from the lows they saw last year. Notably among them, shares of social-game dynamo Zynga have soared an impressive 60% since the start of 2013. A major part of this pop has been speculation about a potential buyout of Znyga. On Monday, a fresh set of rumors sent Zynga higher still. However, what do they really mean for this fallen angel? In the following video, we break down how investors should look at Zynga.