Here we have 25 period Aroon indicator on the daily bitcoin chart. This indicator indicates whether we are trending downward or upward, and also, how strong the trend is. if you see during the whole bull-run of oct-nov-dec of last year the "Aroon Up" signal was maxed on daily, and after the all time high of 20K it had never peaked Up to now! so now that Aroon up is peaked, it can be a sign that we can expect another similar bull run.