• CME Reference Data Notices: API New Query Parameters

      • To
      • Reference Data API Customers
      • From
      • Global Market Solutions and Services
      • #
      • 20191211
      • Notice Date
      • 11 December 2019

    • Effective this Sunday, December 15 (trade date Monday, December 16) the following attributes will be available as query parameters in CME Reference Data API:

      Attribute Product / Instrument
      isTacoProduct Product
      cfiCode,
      tradeTick
      settlementTick      		 Instrument

      These attributes will be available as query parameters in New Release on Thursday, December 12.

CME Group is the world’s leading derivatives marketplace. The company is comprised of four Designated Contract Markets (DCMs). 
Further information on each exchange's rules and product listings can be found by clicking on the links to CME, CBOT, NYMEX and COMEX.

© 2026 CME Group Inc. All rights reserved.