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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series.roc.tooltip.format

A format string for the whole shared tooltip. When format strings are a requirement, it is usually more convenient to use headerFormat, pointFormat and footerFormat, but the format option allows combining them into one setting.

The context of the format string is the same as that of the tooltip.formatter callback.