dxFeed is implementing a minor change in the parameters for Cboe Futures Data starting from February 16, 2026.

Technical details

Currently, in the Cboe Futures data feed, dxFeed publishes the letter “C” in the “ExchangeCode” field of Trades, TimeAndSale, Quote, and MarketMaker events. However, this feed does not include regional events, and in such cases across our feeds, we consistently use the null character ‘\0’. To unify the approach among our data feeds and ensure consistency, starting from February 16, 2026, the Cboe Futures feed will no longer publish the value “C” in the “ExchangeCode” field. Instead, it will use ‘\0’.

Effective date

This change will take effect on February 16, 2026. Please update your systems accordingly.

Please refer to dxFeed Help Desk if you have any questions or concerns.