According to OddsShark, the 49ers opened as five - pointfavorites, but since then the line has shifted, and the Niners are now either three - and - a-half or four - pointfavorites, depending on the book.
Shortly after the New England Patriots completed their destruction of the Indianapolis Colts in the AFC Championship game, the 2015 Super Bowl opened with the Seattle Seahawks as 2.5 - or 3 - pointfavorites, depending on where you looked.