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
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
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.
MACD - Moving Average Convergence/Divergence
A technical indicator, developed by Gerald Appel, used to detect swings in the price of financial instruments. The MACD is computed using two exponentially smoothed moving averages (see further down) of the security's historical price, and is usually shown over a period of time on a chart. By then comparing the MACD to its own moving average (usually called the "signal line"), traders believe they can detect when the security is likely to rise or fall. MACD is frequently used in conjunction with other technical indicators such as the RSI (Relative Strength Index, see further down) and the stochastic oscillator (see further down).
Bollinger Bands
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
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.
MACD - Moving Average Convergence/Divergence
A technical indicator, developed by Gerald Appel, used to detect swings in the price of financial instruments. The MACD is computed using two exponentially smoothed moving averages (see further down) of the security's historical price, and is usually shown over a period of time on a chart. By then comparing the MACD to its own moving average (usually called the "signal line"), traders believe they can detect when the security is likely to rise or fall. MACD is frequently used in conjunction with other technical indicators such as the RSI (Relative Strength Index, see further down) and the stochastic oscillator (see further down).
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