I don't know who "They" is responding to, so I imagine it must be a contributor who is on my "ignore" list. But for anyone else out there who is in the dark (as I was) as to what in the world MFE/MAE stands for, as best as I could determine, they are abbreviations for Maximum Favorable Excursion or the maximum amount of profit available while a trade is open, and Maximum Adverse Excursion or the maximum amount of loss available while a trade is open.
I was commenting that I agreed with some of Overnight's post which was responding to qlai's post which was responding to straightjacket's post about waiting for trades to go against his original trade thesis coupled with wider stops giving him better results, which sounds to me like random entries.
Checking the MFE/MAE should be one of the first things you do when you have a trade concept. You should simply be testing your trade signal over various time periods or volume quantities - a trade is opened, how has price moved after 1 minute, 5 minutes, 50 minutes or after 5k contracts, 15K contracts 50k contracts, etc. If you look over a multitude of periods and the MFE and MAE are always equal your trade trigger sucks and is no better than random.
This type of testing is one of the reasons why you'll see people post trades that have them exiting after 'X' bars vs some fixed target or stop.
