BOLLINGER BANDS

Bollinger Bands: translation

Plus or minus two standard deviations where the standard deviations are calculated historically in a moving window estimation. Hence, the bands will widen if the most recent data is more volatile ( volatility). If the prices break out of the band, this is considered a significant move. Bloomberg Financial Dictionary

   Used in technical analysis. Bollinger bands are lines plotted one standard deviation above and below the moving average of the closing prices. A standard deviation measures price volatility so these bands narrow and widen in line with volatility - narrow in calm markets and wide in volatile markets. The narrowing of the bands often indicates the start of a new trend, which is confirmed when prices break and close out of the band. Bollinger bands may be used with any price chart but are most commonly used with bar charts. (Figure 3.)

   ► See also Bar Chart, Technical Analysis, Standard Deviation.

бирж., стат. линии [полосы\] Боллинджера (инструмент технического анализа; введен Дж. Боллинджером, отражает текущие отклонения: расширяется в период, когда торговля происходит в условиях больших изменений цены акций (период большой волатильности), и сужается или сходится, когда изменения цены акций незначительны (период низкой волатильности); рассчитывается на основе скользящего среднего)