How do your BATS real-time charts work?


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faqs:how_do_your_bats_real-time_charts_work [2019/07/01 21:26] (current)
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 +====== How do your BATS real-time charts work? ======
 +Our BATS real-time charts are generated using data provided by the BATS exchange. This data is a free alternative to "​official"​ real-time data provided by stock exchanges. While BATS data closely approximates their official counterparts,​ there are a few key differences that users should be aware of:
 +  * BATS data is only available for US stocks, though that does not include some thinly-traded stocks.
 +  * Volume data from the BATS exchange is significantly lower than the volume data from the NYSE/​Nasdaq.
 +  * Price data can be different than the price data from the NYSE/​Nasdaq,​ especially for thinly-traded stocks.
 +Because of these limitations,​ we display this BATS data differently on our charts:
 +  * BATS data bars are highlighted yellow to distinguish them from final, official data on the chart.
 +  * We only display BATS data for the most recent 15 minutes on our charts. After that, we replace the BATS bar(s) with delayed "​official"​ bars from the major exchanges.
 +  * For intraday charts, we place a vertical, dashed yellow line on the chart in order to show where the free real-time bars end and the official bars begin.
 +  * Because the volume data from the BATS exchange is so much smaller than the official volume data, we do not display volume or volume-based indicators for the BATS section of the chart.
 +[[:​data:​bats_real-time_data|Click here]] for a full explanation of BATS real-time data, including example charts that compare a BATS-based chart with an official real-time chart.