Besides the gap nmk85roll mentioned, there's going to be a gap from November 2021 to the end of January 2022. Sorry folks, but at this point I think you know why...
At any rate, I saw two options for these and perhaps other gaps. First off there is the CME Datamine, link here (, that charges by the record. I didn't calculate the cost, but if anyone uses it and wants to post gap data they download on this thread, please do.
Separately, NinjaTrader has their Market Replay Data service that costs about $6 per month. Link here (.
Ninja has a facility to export market data; documentation link here (. I haven't tried this, but in theory, data could be downloaded from the replay service and then exported.
If anyone wants to try this and share any results, that would be a nice way to pay it forward as well.
Also if anyone has other ideas for filling gaps, please let us know.