During the Credits
There are no extras during the credits of Jerry Maguire.
After the Credits (spoilers)
When Jerry Maguire hit theaters, there was a special Reebok commercial after the credits, supposedly showing that Rod Tidwell finally got his big brand sponsor; however, in some DVD versions, the add was removed. There was a lot of controversy over the extra scene and even a lawsuit between Reebok and Columbia Pictures over the terms of product placement in the film.
Special thanks to W.Vega for the stinger submission!