Hi Felipe,
The length of a trade can depend upon many things such as the number of indicators, the time frame, scaling, the market conditions, and the prop firm used, is the positions closed manually, etc. I know Petko will often scale up his lot size as the robot becomes profitable, this shortens the time frame. I am not aware of how Petko has traded the robots in his myfxbook account. For further insight into how he manages the robot time frame in myfxbook I would suggest asking the question to support@eatradingacademy.com. I am in Texas and contracted to moderate the forum and help traders with their problems so I don’t have day to day contact with Petko or how he trades. All I know about how he trades is from his videos.
Alan,