Custom Sessions and RTD

CQG Integrated Client customers can set up custom sessions for their charts. For example, NYSE’s trading hours are from 8:30 to 15:00. The primary session for the E-mini S&P opens at 8:30, but closes 15-minutes later, at 15:15. If you want to see E-mini S&P market data and studies based on a close of 15:00, you can create a custom session to open at 8:30 and close at 15:00 and apply that to the E-mini S&P chart. The maximum number of minutes you can use is the range of the custom session. In this case, that would be 390 minutes. You cannot apply a custom session to a daily bar chart. You can use a smaller time frame, such as 5 minutes. You can learn more about setting up custom sessions here.

For this post, I created a custom session called EPDay.

You can use this custom session in the RTD contract label formulas (market data you see in a quote display) by including the number of minutes and the name of the custom session surrounded by curly brackets in the symbol, i.e., EP,390{EPDay}.

=RTD("CQG.RTD", ,"ContractData", "EP,390{EPDay}", "Open",, "T")

=RTD("CQG.RTD", ,"ContractData", "EP,390{EPDay}", "HIgh",, "T")

=RTD("CQG.RTD", ,"ContractData", "EP,390{EPDay}", "Low",, "T")

=RTD("CQG.RTD", ,"ContractData", "EP,390{EPDay}", "LastQuoteToday",, "T")

To get the net change using custom sessions, we will use the study data RTD formulas.

Study Data

RTD study data is market and study data from a chart. The standard RTD formula for the open for a daily bar is:

= RTD("cqg.rtd",,"StudyData", "EP", "Bar", "", "Open", "D", "0", "All","", "","True")

The "D" is for the daily bar, the "0" is today, and the "All" is for all sessions. As a side note, you enter "PrimaryOnly" for the primary session. Next to "All" there is a blank parameter. This is the location for declaring a custom session:

= RTD("cqg.rtd",,"StudyData", "EP", "Bar", "", "Open", "390", "0","", "EPDay", "","True")

Notice that I removed "All", added "EPDay", and set the time frame to "390". The high, low, and close RTD formulas are as follows:

= RTD("cqg.rtd",,"StudyData", "EP", "Bar", "", "High", "390", "0","", "EPDay", "","True")

= RTD("cqg.rtd",,"StudyData", "EP", "Bar", "", "Low", "390", "0","", "EPDay", "","True")

= RTD("cqg.rtd",,"StudyData", "EP", "Bar", "", "Close", "390", "0","", "EPDay", "","True")

To calculate the net change, simply use today’s close minus yesterday’s close by using "-1":


For a study such as RSI, the same parameters are used:

= RTD("cqg.rtd",,"StudyData","EP", "RSI", "InputChoice=Close,Period=14", "RSI","390","0","","EPDay","","True")

Make sure to lower your Excel RealTimeData (RTD) throttle to 50 milliseconds or lower. Learn how to do that here.

Requires CQG Integrated Client.

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