No doubt trading firms still reported their positioning to the CFTC during the shutdown. So I would presume the data exists somewhere in the bowels of the CFTC.
Let the CFTC Know You Care
The question is, why isn't the CFTC disclosing it?
Until the remaining data is disclosed, I'll have to continue avoiding updating my signals. Or I can wait until the moving average periods for my setups run out and then start trading with the data again.
But even if I do that, any historic analysis or backtesting of trading signals will be severely impaired if the missing data isn't eventually filled in. I hope the CFTC finds the time to do so!
UPDATE (Oct. 28): Just hear back from the CFTC. They are pledging to release the missing data over the next couple of weeks in an updated COT release schedule available here.