Jan 15, 2013 · Thank you so much! I am really enjoying Mean Reversion Trading Systems and Quantitative Trading Systems, and am reading, studying, and applying it every night after work. I know it will take time, but your books make the road easier. I'm so glad you wrote this new book as well. Mean-Reversion Pair Trading EA. The Mean-Reversion Pair Trading EA it's a partial implementation of the presented logic in the article "Pair Trading With A Twist” by Domenico D’Errico in Stock&Commodities December 2016. The main tip of it's to calculate spread between selected symbols and produce trading signals on gained results.