ETHANOL?

[craigmediaservices]

I can no longer pull data for Ethanol (AC in IBKR). I couldn't locate any alternative in IBKR, just the "Index" which has no more historical data. Does anyone know if the symbol changed?

[oldlore]

Yes, my last price was from 4/7. Can't find ethanol futures in IB either. Nothing in the CME site about the futures being discontinued.

[craigmediaservices]

Thanks. I haven't fixed it yet either. Just get email errors everyday, lol.

I believe it was always listed as one of the most expensive instruments to trade on the reports anyway, so I don't think it impacts the system much, I'd just like to figure out the root cause of the issue.

[craigmediaservices]

Google and Grok were not helpful, but ChatGPT o3 pulled this:

The Denatured Fuel Ethanol futures you traded under the IBKR root symbol AC have been delisted by the exchange.
On 7 April 2025 the Chicago Board of Trade (CBOT) formally removed the futures (Globex code EH / pit code AC) together with the associated options and forward‑month contracts because open interest had fallen to zero. Once a contract is delisted, Interactive Brokers is required to stop displaying real‑time or historical quotes; only the synthetic “index” that TWS builds from any last‑known prices can still appear. Your market‑data subscription is therefore working—there is simply no feed to display.

[oldlore]

Thanks for that! I guess another one in the "stale" list. I didn't realize ChatGPT was so up to date!