How far price sits from its own average, smoothed twice.
Popular for spotting extremes: above 60 is called overbought, below −60 oversold, with the crossing as the trigger.
Worked out by the same code the builder uses, on stored daily candles. Move a setting and the line moves with it. This is what happened, not what will happen.
Entry: Wave trend line crosses above Wave trend signal.
Smoothing twice makes a very clean line, clean enough to look far more reliable than the numbers under it are.
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