Many different techniques and indicators can be used to follow and predict trends in markets. The objective is to predict the major components of the trend: its direction, its level and the timing. Some of the most widely known include:
Bollinger Bands – a range of price volatility named after John Bollinger, who invented them in the 1980s. They evolved from the concept of trading bands, and
can be used to measure the relative height or depth of price. A band is plotted two standard deviations away from a simple moving average. As standard deviation is a measure of volatility, Bollinger Bands adjust themselves to market conditions. When the markets become more volatile, the bands widen (move further away from the average), and during less volatile periods, the bands contract (move closer to the average).
Bollinger Bands are one of the most popular technical analysis techniques. The closer prices move to the upper band, the more overbought is the market, and the closer prices move to the lower band, the more oversold is the market.
Support / Resistance
Support / Resistance The Support level is the lowest price an instrument trades at over a period of time. The longer the price stays at a particular
level, the stronger the support at that level. On the chart this is price level under the market where buying interest is sufficiently strong to overcome selling pressure. Some traders believe that the stronger the support at a given level, the less likely it will break below that level in the future. The Resistance level is a price at which an instrument or market can trade, but which it cannot exceed, for a certain period of time. On the chart this is a price level over the market where selling pressure overcomes buying pressure, and a price advance is turned back.
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