In their book High Probability ETF Trading: 7 Professional Strategies To Improve Your ETF Trading, Larry Connors and Cesar Alvarez lay out a series of seven strategies for trading ETFs. The rules for the trade entries and exits are clear and easily adapted to thinkScript. In this indicator, I have coded the entries for the seven different strategies and indicate the relevant buy or sell signal as a colored dot on the chart. I leave the exit side of the equation to you as a trader. The legend in the upper left indicates the color codes of the various strategies. As you might gather from the GLD chart shown below, the strategies are of the mean-reversion type and enter on pullbacks.