2. Edge (2007) 1 day*
WWE.com*Mr. Kennedy won the briefcase and held it for 36 days before losing it to Edge. Some nicknames are bestowed upon superstars with no regard for whether they fit. With Edge, the Ultimate Opportunist fit perfectly. As the first Money in the Bank briefcase holder, he was the first wrestler to take advantage of the stipulation that you can cash in at any time, waiting 280 days before beating a worn-out John Cena at New Years Revolution in 2006. But in 2007, Edge solidified his nickname when he goaded Mr. Kennedy, who had won the briefcase at WrestleMania XXIII five weeks earlier, into putting the briefcase on the line. The match lasted all of seven seconds, with Edge assaulting Kennedy on the latters way down the ramp before the bell had rung. In reality, Kennedy was injured and the decision was made to take the briefcase off of him. http://www.youtube.com/watch?v=X0yhpDWmIro The next night, Edge cashed in his newly won briefcase on the Undertaker, who had been laid out by Mark Henry. And thus, Edges title as the Ultimate Opportunist was etched in stone. Unfortunately, his title run would last a little more than two months before a torn pectoral muscle forced him to surrender the World Heavyweight Championship. Interestingly, Edges cash-in is recorded on WWE.com as the day it actually happened, not on the day the episode of Smackown aired, as they do with Jack Swaggers win. Its a weird inconsistency.