The CME Group’s trading platform halted yesterday due to a technical glitch. The company states that the temporary SNAFU has been addressed and everything is working as expected.
In a post from earlier this morning, CME explained that the malfunction was due to a cooling issue at CyrusOne data centers: “our markets are currently halted. Support is working to resolve the issue in the near term and will advise clients of Pre-Open details as soon as they are available.”
The company later posted:
“BrokerTec EU markets are open and trading. All other CME Group markets remain halted due to a data center cooling issue at CyrusOne. We will provide updates as they are available.”
The CME Group is a leading derivatives marketplace, operating four exchanges: the Chicago Mercantile Exchange (CME), the Chicago Board of Trade (CBOT), the New York Mercantile Exchange (NYMEX), and the Commodity Exchange (COMEX). Trading includes commodities, forex, and other derivitives, including crypto.
As of October 2025, CME Group reported its highest October average daily volume (ADV) on record at 26.3 million contracts.
