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Sara .Yu
@yukahama
A Bollinger Band is a technical analysis tool defined by a set of trendlines. They are plotted as two standard deviations, both positively and negatively, away from a simple moving average (SMA) of a security's price and can be adjusted to user preferences. š© š© š© š© š© @DEGEN $DEGEN
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SWLEH
@swleh
Boll is Perfect tool
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