Les CFD sont des instruments complexes et sont accompagnés d’un risque élevé de pertes financières rapides en raison de l’effet de levier. 72,3 % des comptes d’investisseurs particuliers perdent de l’argent en tradant des CFD avec ce fournisseur. Vous devez déterminer si vous comprenez comment fonctionnent les CFD et si vous pouvez vous permettre de courir le risque élevé de perdre votre argent.
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Mercredi Apr 12 2023 10:02
3 min
Bollinger Bands are one of the most widely used and powerful technical indicators in the financial markets. Named after the creator, John Bollinger, these bands are made up of a series of bands placed at a certain distance around a certain Moving Average, generally a 20 period MA, that capture the dynamics of volatility in a certain security or market index.
To calculate Bollinger Bands, one takes a certain MA, the 20 period MA is common, and calculates two “bands” a certain distance from that MA, which is calculated by the volatility of the security. For example, the common distance to set the bands is two standard deviations.
This can be calculated in two ways: with historical volatility and a “squeeze” indicator.
The formula for Bollinger Bands can be broken down into three main parts. The first is the MA. As stated, this is generally a 20 period moving average of closing prices. This MA will then be set by the two bands which will be the distances from the MA. These two bands are the Upper and Lower Band, which are set two standard deviations from the MA.
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The limitation of Bollinger Bands is that, like many technical indicators, they can generate false signals that do not accurately indicate the movement of the security. Bollinger Bands, therefore, must be used in combination with other indicators to confirm or negate the signals given.
In addition, Bollinger Bands do not necessarily accurately reflect changes in the underlying security or market, but are merely a measure of volatility, which is itself an abstract concept. Therefore, it is important to use them in conjunction with other technical analysis techniques.
In conclusion, Bollinger Bands are an extremely powerful technical indicator and are a staple of technical analysis. While the bands alone cannot give an accurate measure of the underlying security, they can be used in conjunction with other indicators and tools to generate trading signals and inform one’s decisions in the markets.
It is important to note, however, that false signals can be generated and one must be careful when making any trading decision.
Avertissement sur les risques : cet article ne reflète que les opinions de l'auteur et est fourni à titre indicatif uniquement. Il ne constitue en aucun cas un conseil en investissement ou une recommandation financière, ni ne représente la position de la plateforme Markets.com.Lorsque vous envisagez de négocier des actions, des indices, des devises et des matières premières ou de faire des prévisions de prix, n'oubliez pas que le trading CFD comporte un degré de risque important et peut entraîner une perte de capital.Les performances passées ne sont pas indicatives des résultats futurs. Ces informations sont fournies à titre informatif uniquement et ne doivent pas être interprétées comme servant de conseils d'investissement. Le trading de CFD et de spreads bets sur les crypto-monnaies est restreint au Royaume-Uni pour tous les clients particuliers.
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