Showing posts with label price. Show all posts
Showing posts with label price. Show all posts

Monday, August 11, 2008

Exponential Moving Average EMA | ForexGen Tips






In order to reduce the lag in simple moving averages, technicians often use exponential moving averages (also called exponentially weighted moving averages). exponential moving average reduce the lag by applying more weight to recent prices relative to older prices. The weighting applied to the most recent price depends on the specified period of the moving average. The shorter the exponential moving average’s period, the more weight that will be applied to the most recent price.
For example: a 10-period exponential moving average weighs the most recent price 18.18% while a 20-period EMA weighs the most recent price 9.52%. As we will see, the calculating and exponential moving average is much harder than calculating an simple moving average. The important thing to remember is that the exponential moving average puts more weight on recent prices.exponential Moving Average Calculation Exponential Moving Averages can be specified in two ways - as a percent-based exponential.

Simple Moving Average (SMA)





the simple moving average is formed by calculating the average price of a security over a particular number of periods. While it is possible to create moving averages from the Open, the High and the Low data points, most moving averages are created using the closing price.
For example: a 4-day simple moving average is calculated by adding the closing prices for the last 4 days and dividing the total by 4.11+ 12 + 13 + 14 = 50(50 / 4) = 12.5The calculation is repeated for each price bar on the chart. The averages are then joined to form a smooth curving line - the moving average line. Continuing our example, if the next closing price in the average is 15, then this new period would be added and the oldest day.