The range of an asset’s price is simply the difference between its high and low points over a set period. Range is important for technical analysts and in the plotting of certain chart types, most notably candlestick charts. A wide range, especially over a short period, indicates a more volatile asset. Traders use range alongside other technical indicators to generate trade ideas and confirm their strategies when participating in the financial markets.
Traders are mostly interested in range for the purposes of technical analysis. The most famous use of range in technical analysis is in candlestick charting, where the limit of the wicks of the candle indicates the top and bottom of the overall price range. Different patterns can emerge when looking at the range over multiple sessions, which can be clearly visualised using candlestick charts.
The broader the range of an asset, the more volatile recent trading sessions have been. The direction of travel is also important within the range, as of course is the time period. For example, we would expect a large range for a period of one year on all but the most stable assets, but a large price range for a one month period could be concerning. Range does not indicate whether an asset has increased or decreased in price, so it should not be used in isolation.
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