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Simple Moving Average

A simple moving average (SMA) is the average price of a security over a specific period of time. Most moving averages are based on closing price. A 5-day simple moving average is the sum of closing prices of five days divided by five.

 

An example for calculating the simple moving average is as follows:

 

Let us assume a time period window of 10 for an SMA,

n = 10:

 

Sr. No Data  Simple Moving Average (SMA) Data points used
1 20 -na-  
2 25 -na-  
3 29 -na-  
4 12 -na-  
5 29 -na-  
6 35 -na-  
7 15 -na-  
8 10 -na-  
9 9 -na-  
10 15 19.9 Simple average from data point 1 to data point 10
11 26 20.5 Simple average from data point 2 to data point 11
12 35 21.5 Simple average from data point 3 to data point 12
13 9 19.5 Simple average from data point 4 to data point 13
14 45 22.8 Simple average from data point 5 to data point 14
15 60 25.9 Simple average from data point 6 to data point 15