All the patterns you see one or another they are either the arguments between sustaining the price trend or booking the profits , when more then 2 institutions start the arguments you will find the complex patterns , the Major loss booking is done by day traders during this kind of pattern formation , positional will have certain boundaries they will exit or they will continue to hold until some directional decision is made beyond this bracketed market i have seen them in the past and will be seeing them in the futures , but few trader who lose the money will go out form the market , that is the only reality