Differences

This shows you the differences between two versions of the page.

--- data [2019/11/07 20:55]
betseyp [Markets We Cover]
+++ data [2021/02/25 23:45]
betseyp [Real-Time Data]
@@ Line 38: / Line 38: @@
 BATS real-time data is provided by [[https://batstrading.com|the BATS exchange]] for no additional charge. BATS data is only available for US stocks. For liquid stocks, BATS data is very similar to NYSE/Nasdaq data. For thinly-traded stocks, BATS data can differ significantly. BATS data quotes do not contain useful volume information, so we do not display volume on BATS charts. We highlight BATS real-time data bars in yellow. [[:data:bats_real-time_data|Click here]] for more information about the BATS real-time data available on our site.
+===== Extended Hours Data =====
+For many US symbols, we offer extended hours trading data. For US markets, after-hours trading data covers the 4 hours after market close (4:00 PM - 8:00 PM Eastern time); and pre-market data covers the 5.5 hours prior to the market opening for the day (4:00 AM - 9:30 AM Eastern time).
+Pre-market and after-hours price quotes are available on the [[:reports:symbol-summary|Symbol Summary]] page during pre- and post-market trading sessions.
+In addition, extended hours data can be charted on both SharpCharts and StockChartsACP charts. Check the Extended Hours checkbox in the [[:sharpcharts#chart_attributes|Chart Attributes section of the SharpCharts Workbench]], or on the [[:acp:editing#chart_attributes|Chart Settings panel in StockChartsACP]]. When this box is checked, extended hours bars will be added to your intraday chart in color-coded sections (purple for after-hours, blue for pre-market) if extended hours data is available for that symbol.
+Note that securities are generally more thinly-traded during pre-market and after-hours sessions than during regular market hours. Extended hours price bars will only be shown if there has been trading activity during the timeframe of that bar. Volume data and volume-based indicators are not available for any extended hours bars.
+Historical pre-market and after-hours data is available going back approximately three trading days.
 ===== Data Bar Periods =====
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   * **$INDUSTRY** - this index equals the industry index for the industry that the main ticker symbol belongs to.
-So, for example, you could use these symbols to create a ChartStyle with a "Price" Indicator of "$SYMBOL:SECTOR" - then, regardless of the ticker symbol you apply the style to, we would then plot a sector-based relative strength line on the chart. These pseudo-symbols are available for use with US symbols that have a sector and industry assigned to them.
+So, for example, you could use these symbols to create a ChartStyle with a "Price" Indicator of "$SYMBOL:$SECTOR" - then, regardless of the ticker symbol you apply the style to, we would then plot a sector-based relative strength line on the chart. These pseudo-symbols are available for use with US symbols that have a sector and industry assigned to them.
 We also have several "theoretical" pattern symbols that contain "perfect" versions of different price patterns for use in studying the behavior of technical indicators when such patterns appear on a chart. All such symbols have "$TH" at their start, as seen below:
@@ Line 190: / Line 201: @@
 ===== Frequently Asked Questions =====
-**Q: Do you offer pre-market or after hours data?**  \\ A: We do not have access to such data at this time.
+**Q: Do you offer pre-market or after-hours data?**  \\ A: After-hours data is shown on our [[:reports:symbol-summary|Symbol Summary]] page during pre-market and post-market trading sessions.
 **Q: What time do the NSE charts update in real time? **  \\ A: The NSE starts trading at 9:15 AM and closes at 4:00 PM local time. That would be 11:45 PM and 6:30 AM Eastern Time, respectively.

Data and Ticker Symbols

Differences