Fibonacci Arc

Definition of 'Fibonacci Arc'


A charting technique consisting of three curved lines that are drawn for the purpose of anticipating key support and resistance levels, and areas of ranging.

Fibonacci Arc

Investopedia explains 'Fibonacci Arc'


Fibonacci arcs are created by first drawing an invisible trendline between two points (usually the high and low in a given period), and then by drawing three curves that intersect this trendline at the key Fibonacci levels of 38.2%, 50% and 61.8%. Transaction decisions are made when the price of the asset crosses through these key levels.



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