Welcome to the Highcharts Stock JS (highstock) Options Reference

These pages outline the chart configuration options, and the methods and properties of Highcharts objects.

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The point index which indicator calculations will base. For example using OHLC data, index=2 means the indicator will be calculated using Low values.

By default index value used to be set to 0. Since Highcharts Stock 7 by default index is set to 3 which means that the ema indicator will be calculated using Close values.