CME Group futures trading halted by data-centre cooling failure

Thursday, November 27, 2025 at 23:40 UTC+01:00 (+0100), United States, Chicago area (data centre)

News category : Market Structure and Financial Stability Events

Late on November 27 trading in futures and options across multiple asset classes was suspended after CME Group reported a technical outage traced to a cooling failure at a CyrusOne data centre. The disruption affected the Globex platform and froze pricing for equity index, commodity, FX and interest-rate futures for several hours, leaving market participants without standard hedging tools during a holiday-shortened period. Brokers and market-makers were forced to rely on internal models and alternative venues, widening spreads and elevating operational risk. The outage prompted immediate scrutiny of exchange resilience and prompted discussions among regulators and market participants about contingency planning for critical market infrastructure.

Overall market impact

Strong bearish market impact - strength score : 90/100

Detailed breakdown of market impact over instruments, sectors, and asset classes

To access impact scores per sectors and asset classes - you’ll need to subscribe to a membership

Impacted instruments :

Equity index futures

Commodity futures

FX futures

Interest-rate futures

Derivatives liquidity

Discover Full Article Details and Insights with a Membership

To access the full article—along with in-depth analysis of how this event could impact the markets—you’ll need to subscribe to a membership. Our community of expert analysts will help you understand the implications clearly and provide relevant guidance to support your investment decisions.