Shares of Harmony Gold (NYSE: HMY) rose as much as 16.5%, followed by a 16.3% jump for Gold Fields (NYSE: GFI) and a 12.5% leap for New Gold (NYSEMKT: NGD) in trading today. That was up from the institution's previous forecast of $2,000 per ounce and takes into account various new economic data points, such as massive stimulus programs expected to have large inflationary effects. The new target would easily top the all-time record high for gold and represent a roughly 70% increase from current prices, which are 35% above levels from a year ago.