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what is fibonacci values?
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usually when a stock is up-trending or down-trending the price does not go up or down in a straight line. in an uptrend the price may go up over a couple of days then it could go down the next day or two, but the general direction would be up over the medium term. the opposite for a downtrend. so if the stock has been generally going up over the last few weeks, it may take a breather for a week or two before prices continue up again. this breather is called a retracement in the uptrend. the fibonacci levels are possible amounts by which the price might retract before it continues on its way up again. by the way 50% is not actually a fibonacci retracement level but it is a common retracement level which is usually used in combination with the fibonacci retracement levels.
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