For the latest roadmap of CME Group technology initiatives, see the Development Launch Schedule.
Find the previous versions of CME Reference Data Notices on the Notice Search page.
Effective Sunday, May 17 (trade date Monday, May 18), the following changes will be implemented on CME Reference Data API:
| CME Reference Data API - New Attributes | |||||
|---|---|---|---|---|---|
| Endpoint | Attribute Name | Description | Type | Market Type | Filterable |
| Instrument | sevenDayTradingIndicator | Y/N flag that indicates if instrument is eligible for 24/7 trading. | String | Listed Derivatives | Yes |
| leagueReal | Major League Sport Real Name (e.g., NFL) | String | No | ||
| eventStartTimestamp | Event start time timestamp. | Local Date Time | |||
| eventName | Name of the event (e.g., Best of 2026 Oscars) | String | |||
| assetStatus | Describes the status of the asset. Valid values:
|
String | |||
These changes will be available for customer testing in New Release on Thursday, May 7.
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