SESSION ATR PERCENT

Session ATR Percent displays the current session's Average True Range as a percentage of the historical average. It tells you at a glance whether today's session is running hotter or cooler than normal.

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How It Works

The study computes the ATR for the current session (within the configured time window) and divides it by the rolling average ATR over the last N completed sessions. The result is displayed as a percentage:

• 100% — current session matches the historical average
• Above 100% — current session is more volatile than usual
• Below 100% — current session is calmer than usual

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Rolling History

Completed session ATR values are stored in a persistent rolling window. When a new session ends, its ATR is added to the history and the oldest value is dropped if the window exceeds the configured length.

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Requirements

This study must be applied to a time-based chart (e.g., 1 minute, 5 minutes, 1 hour). It relies on time-based session boundaries to compute the ATR correctly. It will not work on tick, volume, range, or Renko charts.

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Configuration

Setting	Default	Description
Session Start Time	9:30	Start of the session window
Session End Time	16:00	End of the session window
History Length (Days)	20	Number of sessions in the rolling average
Text Color	White	Text foreground color
Background Color	Black	Text background
Font Size	14	Text size
Font Bold	Yes	Bold text
Position X	1	Horizontal position (1-150)
Position Y	1	Vertical position (1-100)