This is a very simple yet effective MACD momentum trading strategy for GDXJ (Jr. Gold Miners ETF). Apply the MACD indicator with the classic 12/26/9 setting on GDXJ at the 30-minute interval. Go long when MACD issues a buy signal and go short when MACD issues a sell signal. Take profit = +25%, stop loss = -5%. Got pretty decent results off such a basic strategy already so I was wondering what my fellow Q wizards can do to spice this thing up even more!