The Donchian Channel consists of an Upper Bound (upper_bound) and Lower Bound (lower_bound) that track the recent highs and lows and is often used to signal entry and exit points for a position. As the price of the underlying symbol increases the Upper Bound raises, if the price becomes range bound the Upper Bound will remain flat and if the price begins to decrease, the Upper Bound will fall (and vice-versa for the Lower Bound).
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