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.

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