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Rectangle top or bottom

An indicator of patterns #37 and #38 ("Rectangle Tops" and "Rectangle Bottoms") from Encyclopedia of Chart Patterns by Thomas N. Bulkowski.


  • Alerts - show alert when an arrow appears  
  • Push - send a push notification when an arrow appears (requires configuration in the terminal)
  • PeriodBars - indicator period
  • VertexCount - the number of tops and bottoms: 2, 3, 4.  
  • ArrowType - a symbol from 1 to 17
  • ArrowVShift - vertical shift of arrows in points  
  • ShowLevels - show levels
  • ColUp - color of an upward line
  • ColDn - color of a downward line
  • Auto5Digits - automatic multiplication of ArrowVShift by 10 when working with 5 and 3 digit quotes.

Note. Arrows appear on a forming bar and do not disappear.  

It cannot be guaranteed that the indicator recognizes the patterns exactly as implied by the author.

Recommended optimization parameters: PeriodBars, K for different values of VertexCount.

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