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<p id="isPasted">To use envelope indicators, you must select a base line, such as a moving average, and a percentage deviation to determine the distance of the envelope lines from the base line. You can choose a fixed or dynamic percentage deviation depending on the volatility of the market. The higher the percentage deviation, the wider the envelope and the less likely the price will touch the envelope lines. Conversely, a lower percentage deviation leads to a narrower envelope and a higher probability of the price crossing the envelope lines. Envelope indicators can be employed to identify trends, overbought and oversold conditions, …</p>