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CME cleared PLN IRS products that currently utilize WIBOR for Discounting and POLONIA for PA will transition to POLSTR PA/Discounting as applicable, to take effect at the close of business on Wednesday, October 21, 2026 in the UAT/New Release environment.

Please click the link below for the full advisory. 

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.

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