OPEN-SOURCE SCRIPT
Join data and union of 2 hystorical markets

How to create a union from two contiguous Tradingview tickers (series)
Francesco Marzolo March 18, 2021
Go to the older ticker of the two, for example CME: SP1! and open it on Tradingview.
On the graph thus created, add this script.
In the indicator settings select the same ticker as the chart in Symbol1
while in Symbol2 the ticker from which to retrieve the most recent data, for example: SPX500
The operation this script does is examine each bar of the two tickers, where there is a value for the second it holds this one, where it does not exist in second ticker it keeps the value of the first one. This new series is called Merge. So now in the chart there will be 4 series:
- that of the original chart without script
- the same series loaded via script (Symbol1)
- series 2 of "new" data (Symbol2)
- the Merge series that "prefers" the Symbol2 data if present, otherwise it shows Symbol1
So now you have to change the visibility of the 4 series to see the differences:
- turn off the visibility of the chart indicator
- turn off the Symbol1 series in the script properties (old data only)
- switch off the Symbol2 series as well (only new data)
- switch on the Merge series (new data if existing, old if not present in the new ticker)
Open-source script
In true TradingView spirit, the creator of this script has made it open-source, so that traders can review and verify its functionality. Kudos to the author! While you can use it for free, remember that republishing the code is subject to our House Rules.
Disclaimer
The information and publications are not meant to be, and do not constitute, financial, investment, trading, or other types of advice or recommendations supplied or endorsed by TradingView. Read more in the Terms of Use.
Open-source script
In true TradingView spirit, the creator of this script has made it open-source, so that traders can review and verify its functionality. Kudos to the author! While you can use it for free, remember that republishing the code is subject to our House Rules.
Disclaimer
The information and publications are not meant to be, and do not constitute, financial, investment, trading, or other types of advice or recommendations supplied or endorsed by TradingView. Read more in the Terms of Use.