An Introduction to Bollinger Bands
The Bollinger bands were developed by John Bollinger. He was a technician for the markets for many years. He developed this method of making use of the averages that moves with two bands for trading. This is different from making use of envelopes on the sides of the moving average. Bollinger Bands just adds and then subtracts the calculation from the standard deviation.
How do we use the Bollinger bands? It begins with knowing the standard deviation. It is a formula in mathematics that is used to measure the volatility. In the forex market standard deviation is used to show how the prices of the stocks could be moved around based on its real value. John Bollinger was sure that with the use of the bands all the data for the price that an investor needs can be found.
The Bollinger Bands is composed of one centerline and two channels for prices which is located on top of the centerline and one channel below the centerline. The channels for prices are the results from the stock's standard deviation that the chartist studies. The centerline is the moving average's exponent. The Bollinger bands will then expand and go down as the actions of the price in issue will become volatile. This is expansion and this means that it is bounded in a fixed patter of trading. This is also called contraction.
A particular stock may get traded for many periods in time with a certain trend despite the volatility that occurs sometimes. To have a better perspective of the trends, the traders make use of the moving average to sort the actions of the prices. The traders can gather the pertinent information better by using this method like how the trading in the market is performing currently. Like just right after a deep fall or a good rise from a trend, the market can consider consolidating which means that it will trade in a narrow pattern and criss-crosses just above and right below the moving averages. For better monitoring of the market's behavior, traders make use of the channels of prices to better monitor this behavior, traders use price channels.
It is a known fact that the forex market trades drastically day to day even when there is a downtrend or an uptrend. It is also a fact that most of the technicians make use of the moving average along with lines of resistance and support lines to foresee the actions of the stock prices. The support lines below and the upper resistance lines are initially drawn and extrapolated to create channels where the traders foresee the prices. There are traders who draw lines which are straight to connect the bottom or top prices to highlight the higher and lower prices. They will then add another parallel line to give the channel a definition where the prices are desired to move. This means that the prices should not move out of the channel and by this way the trader can still be confident that the action of the prices is still as it is expected.