With shares of Fannie Mae (FNMA 0.40%) having exploded upward by nearly 600% since last year, many investors are wondering if this is a sound investment and what will happen once the government no longer holds conservatorship over the company. In this video, Motley Fool financial analysts Matt Koppenheffer and David Hanson discuss the stock and the future of Fannie Mae. Matt gives us some possible ways to value the company at the moment, gives us some insight into why the stock has exploded recently, and points out that once that conservatorship ends, the catalyst for this stock's growth could take a sharp turn in the other direction.