A tall upper shadow occurs when the price moves during the period, but goes back down, which is a bearish signal. A tall lower shadow forms when bears push the price down, but bulls pull it back up, which leaves a long line or shadow. This is considered a bullish signal.

Some technical analysts believe a tall or long shadow means the stock will turn or reverse. Some believe a short or lower shadow means a price rise is coming. In other words, a tall upper shadow means a downturn is coming, while a tall lower shadow means a rise is coming.

Input Parameters

• On alert - True/False (displays a message in a separate window).
• On Send Notification = True/False. (Sends push notifications to the mobile terminals, whose metaQuotes IDs are specified in the "Notifications" tab. (Strict use restrictions are set for the SendNotification() function: no more than 2 calls per second and not more than 10 calls per minute. Monitoring the frequency of use is dynamic. The function can be disabled in case of the restriction violation.))
• Max Bar - Numbers of bars.

Parameters in chart

• Tail Candle - Distance of tail candle.
  
• Tail Candle Reverse - Number percent (Plus percent when reverse).

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