A top or bottom with two lower highs (or higher lows) on each side.
+1 marks a top, −1 a bottom. A fractal is only confirmed two candles later, so the value appears with that delay.
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.
Gate: Williams fractals is equal to −1.
Every small wiggle produces fractals. On their own they mark noise as often as structure.
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