# SMA volume by price
SMA indicator stands for simple moving average chart; it is used to filter out the noise from random price movements by visualizing the sum of prices over a period by the number of periods. SMA helps identify trends and confirm reversals. 
#### Tip
To visualize the SMA chart, set its property [linkedTo](https://api.highcharts.com/highstock/plotOptions.pivotpoints.linkedTo) to the id of the OHCL chart.