There are many different types of technical indicators; however they can be grouped into five types.
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3. Volatility: Measures and shows fluctuations over a section of time. These indicators help to pinpoint support and resistance levels, the most popular of these is Bollinger Bands.
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5. Momentum or Oscillators: These indicators map the speed at which prices move over a given section of time. Momentum indicators determine the strength or weakness of a trend as it progresses over time. Momentum is highest at the beginning of a trend and lowest at trend turning points. Any divergence of directions in price and momentum is a warning of weakness; if price extremes occur with weak momentum, it signals an end of movement in that direction. If momentum is trending strongly and prices are flat, it signals a potential change in price direction. The most popular momentum indicators are the Stochastic, MACD and RSI.