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Rounded top or bottom

An indicator of patterns #39 and #40 ("Rounding Tops" and "Rounding 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  
  • K - an additional parameter that influences the accuracy of pattern shape recognition. Changes from 0 to 1
  • ArrowType - a symbol from 1 to 17
  • ArrowVShift - vertical shift of arrows in points  
  • ShowLevels - show levels
  • ColUp - color of arrow up
  • СolDn - color of arrow down
  • Auto5Digits - automatic multiplication of ArrowVShift by 10 when working with 5 and 3 digit quotes.

Note. Arrows appear at the opening of a new bar based on analysis of formed bars 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.

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