CME Halts Trading Due to Data Center Cooling Failure

The Chicago Mercantile Exchange (CME) Group halted trading across its major platforms early Friday, November 28, 2025, due to a cooling system failure at a CyrusOne data center. The outage disrupted futures and options contracts in equities, commodities, foreign exchange, and cryptocurrencies, affecting global markets during thin post-Thanksgiving liquidity.

The interruption began around 2:45 a.m. London time, shortly before 3:00 a.m. GMT, as Asian trading sessions were underway. CME's Globex electronic trading platform, along with the EBS foreign exchange platform and BMD markets, went offline, freezing prices and halting access to real-time quotes and positions. Contracts impacted included U.S. equity futures, crude oil, palm oil, precious metals like gold and silver, agricultural products, grains, Treasuries, and major currency pairs such as euro-dollar and dollar-yen. Cryptocurrency futures for Bitcoin and Ethereum also stopped updating, leaving traders without reliable data feeds.

A statement on the CME website notified users: "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...