Cooling Issue Halts CME Group Trading Platforms, Global Derivatives Prices Stall

Trading on platforms operated by the U.S. derivatives market giant, CME Group, has been halted due to a "cooling issue in CyrusOne data centres." The outage immediately affected the company's popular currency platform (EBS) and futures markets spanning foreign exchange, commodities, Treasuries, and stocks.

CME Group, which operates one of the major derivatives trading venues and whose prices act as benchmarks across global markets, confirmed the disruption in a statement. "Our markets are currently halted," the company noted. "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."

Although the total number of affected products remains unclear, prices for several key assets—including West Texas Intermediate crude, Treasury futures, S&P 500 futures, palm oil, and gold—stopped updating. Furthermore, prices were stalled on the EBS foreign exchange platform, which is heavily used for major currency pairs such as the euro/dollar and dollar/yen. The incident occurred today (Friday) during Asian business hours, following the Thanksgiving holidays, a period typically associated with lower market demand.

The issue stems from CyrusOne, a data center operator headquartered in Dallas, Texas, which manages more than 55 data centres located across the U.S., Europe, and Japan. The company has yet to issue an official statement on the cooling issue, and it remains unclear which of its facilities were affected by the disruption.

This outage adds to recent instances of third-party technical failures impacting the financial industry. A separate three-hour-long outage recently experienced by Cloudflare, for example, directly affected numerous forex and Contracts for Difference (CFD) brokers, with many websites displaying "Internal server error" messages. While no brokers publicly quantified their losses, one industry estimate suggested that the outage may have cost them an average of $1.58 billion in trading volume, which correlated to nearly 1% of their monthly trading revenue. Past similar outages linked to AWS issues have also impacted the operations of brokers and exchanges.