TradeStation Help
Bar charts can be time-based, tick-based or volume-based. When using time-based data resolution (second, minute, daily, weekly, or monthly), each bar on the chart illustrates the Open, High, Low, and Closing prices for the time increment represented by the bar.
When using tick-based data resolution, each bar illustrates the first, lowest, highest, and last tick in the group of ticks comprising the bar. When using volume-based bars, each bar illustrates the first, lowest, highest, and last price in the group of transactions comprising the bar.
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