I have not seen this before, so it may not be new, but this url https://www.barchart...es/quotes/ESU18 has a seasonal comparison to the last 5 September contracts, or so it says. FYI, and I think this would be free to all and cover other futures contracts. https://www.barchart...es/quotes/ESU18 You can also download up to 10,000 symbol quotes per day for free as well, but in 10 different files (intraday or end of day)
Edited by Darris, 04 September 2018 - 03:48 PM.