thanks for clarifying the TN contract. The symbol is TN on CBOT and OZN on GLOBEX.
Regarding the maintenance of the symbols. My point is not to make modifications on your end. I understand that you maintain the data and that is ok with me. My point is that the data is sometimes wrong and I would like a function which does stop the automated modification of historic rollover dates. In my opinion that would be really helpful.
Thanks,
Klaus
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