Category:18RBOM

18 Bar range. Used to be called 18B in Al's term. Breakout Below 18 bar range so 80% chance will not rally to new high of day, and 90% chance if range is big。See also 10RBO.向下突破18根k线形成的区间，有80%的机率不会上涨到新的日高，90%的概率形成宽幅的交易区间。