The price patterns help in identifying the characteristics of the trend of market. This can be for very long term (cup pattern) to medium term (head and shoulders, double bottom/top, triangle) to short term (flag)
Double top/bottom – Min 1 month & Volume high at second top
Head and Shoulder – Min 3 month; Left Shoulder Volume high & and Right Shoulder Volume low
Cup – Long duration, Low volume, for long position traders, for monthly traders.
Flag – 3-7 days, for weekly traders, Volume low on formation and increases during breakout.
Triangle – min 45 days. Volume high at breakout may be Positive or Negative