As of the close on Friday,$S&P/ASX 200(XJO.AU)$ closed at 7,145.10 points, down -0.14% in the past 5 days.During the last 5 trading days, $De Grey Mining(DEG.AU)$ was up 10.04%; $Capricorn Metals(CMM.AU)$ added 10.02%; $Sandfire Resources NL(SFR.AU)$ rose 8.56%; $Northern Star Resources(NST.AU)$ was up 8.53%; $Regis Resources Ltd(RRL.AU)$ increased 8.21%.Among the top five gainers, four of them are gold-related companies. They are the biggest gainers in this week’s gold rebound.