Today seems to be a day that CEOs at major companies all decide that it was time to "explore other opportunities." The CEO of Fannie Mae, Urban Outfitters, and WebMD all left their posts today. For Fannie Mae CEO, Michael Williams, one can only guess that the workload is too much and that it was talking years off his life. Urban Outfitters CEO Glen Senk is resigning to pursue another opportunity (the announcement is rather abruptly so it must be a heck of an opportunity) and WebMD's CEO Wayne T. Gattinella is leaving as it is clear that a sale is not going to happen. With the exception of Fannie Mae, the stocks are all taking a hit.