MAE is maximum adverse excursion. look it up on the web if you've never heard of it or try: http://63.215.121.72/Web/TeHelp/usingTEMFEMAE.html there's also MFE for Max. Favourable Excursion. anyways, i have done some research and found that both simply find volatility of a stock. In other words, MAE and MFE do not help in any way whatsoever. for followers, i'm sure this may either disappoint or confuse. i can generate same graphs for MAE and MFE by measuring range over variable time periods. applying MAE should produce same results as simple volatility stops. has anyone else figured this out?