Bull markets like these are kind of ridiculous... They generally maintain a 99%+ probability of prices testing higher levels than the previous eight months over each two months... Until they eventually break!
Eg... You have a 99%+ chance of losing if you short at six month average prices(Where the nasdaq was) holding for a couple months with a stop of like 1/4th ATR.
Stops that tight are unrealistic, just making a statistical point...