Sierra Chart - Help Details - Missing or Incomplete Intraday Chart Data

Missing or Incomplete Intraday Chart Data

7.1 - Retrying Downloading of Intraday Data

Sierra Chart will always download and permanently store historical intraday chart data for a symbol when you are connected to the data feed and an intraday chart for the symbol is open OR the symbol is listed in the Intraday File Update List. Select Edit >>Intraday File Update List on the menu to add symbols to that list. When you connect to the data feed or open an intraday chart while connected to the data feed, the data that is missing from the data file for the symbol and is also available on the data server will definitely be downloaded by Sierra Chart. The amount of Historical Intraday Data that you will receive from the data or trading service server depends upon the service you are using and Sierra Chart settings. There are service specific settings that control how many days of intraday data Sierra Chart will download from the server. These settings can be viewed and are set by selecting Global Settings >> Data/Trade Service Settings on the menu. Keep in mind if the server does not have all the intraday data for a symbol from the last time in the chart to the present, or the number of historical intraday days to download is not high enough, then there will be data missing from the chart.

In the case of the Sierra Chart Historical Data server which is used by some of the data and trading services we support, a problem connecting to this server or a problem downloading data, will cause missing data.

Note: The data server may be providing the all the data. However, the missing data issue may be caused by the data being filtered out from the chart for other reasons which are explained in the subtopics below.

Retrying the Download When there is Data in the Chart

Please watch the video on how to delete and refresh intraday data.

If there are bars, even a few, in the chart, then to retry downloading intraday data for a symbol, follow these instructions:

  1. Make certain you are connected to the data feed by selecting File >> Connect to Data Feed. If you were not, then the missing data will be downloaded after you connect.
  2. Select Global Settings >> Data/Trade Service Settings on the menu. Make sure the Maximum Historical Intraday Days to Download setting is set to what you require.
  3. Go to your chart and use your pointer to point to where you want to begin the download at (right before the missing or incomplete intraday data), right-click your pointer and select Delete and Refresh Intraday Data on the shortcut menu. This will delete and refresh data from the position you pointed to, to the end of the data file. You will see Downloading Historical Data displayed on the chart window.

    If you are missing data at the end of the chart, then just point to a bar near the end of the chart, right-click your pointer and select Delete and Refresh Intraday Data on the chart shortcut menu.

    If you want to delete all data in the file to retry downloading all available data, then select Edit >> Refresh All Intraday Data for Symbol. You will want to delete all data to retry downloading all available data from the server if you did not get any history when you initially opened the chart, or in the case to get data going further back than you already have.

  4. For more information, please see the Intraday Data Editor documentation page.

Retrying the Download When there is No Data in the Chart

If there is no data in the chart, then this could be either because the symbol data file contains no data or certain Chart >> Chart Settings are filtering out the data. Try selecting Edit >> Edit/Refresh Data on the menu. The editor will not display any data if the data file is empty. In this case all you need to do to retry downloading the data is reconnect to the data feed. To reconnect to the data feed, select File >> Disconnect and then File >> Connect to Data Feed on the menu. Otherwise, if there is data displayed in the Intraday Data Editor, scroll to the position to where you want to start the data refresh from and press the Delete and Refresh ... button.

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7.2 - Mismatch Between Bar Close and Price Box on Right Side Scale of Chart

If data from the last time in the chart to the present price is missing from the chart, then the close mark on the last bar in the chart will not match the current price box that is displayed on the right of the chart window. When the markets are open and there is active trading for the symbol, then the last bar and the price box on the right should definitely match. If they do not, then the problem would be explained in help topic number 3. Another reason they may not match is because the Start and End times in the Chart Settings window are not set to cover the full 24-hour period. In this case, the data that is in the file is not loaded into the chart. The box on the right always shows the current price for the symbol.

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7.3 - Incorrect Settings

Data will also appear to be missing from a chart if some Chart Settings are incorrect. Select Chart >> Chart Settings on the menu.

If the Days to Load setting is not set to load all of the data you want to see, data will seem to be missing. The Days To Display/Load setting must include weekends.

If the Start Time and End Time settings do not cover the time period you want to see, data will seem to be missing. To cover the full 24 hours use 00:00:00 for the Start Time and 23:59:59 for the End Time. The Time Zone Setting in Sierra Chart controls the time zone that times are displayed in. The Start Time and End Time need to correspond to the Time Zone of the displayed data. For more information see help topic 38.

If the Load Weekend Data option is disabled, you will not see weekend data.

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7.4 - Incorrect Computer Date/Time Settings

Another reason data may appear to be missing from a chart or not downloaded is if your computer's date and time are not set correctly or your computers time setting does not match your time zone setting in Windows. Please refer to help topic 38 for more information. If there was a problem with your settings, then after you correct them, please Delete and Refresh your data as explained in help topic 7.1.

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