CME Group says some operations on exchanges it oversees have been partially restored, after trading of futures and options on the platforms was halted on Friday due to a technical issue.
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Foreign exchange platform EBS reopened at 12:00 GMT (07:00 ET), following an hours-long outage, according to a notice on CME Group’s website.
Other impacted markets are in the process of being restored, CME Group said.
A host of commodities and agricultural goods contracts appeared to be disrupted by the outage. Equity index futures were also hit, with CME citing "a cooling issue at CyrusOne data centers."
Dallas-based CyrusOne operates more than 55 data centers in the U.S., Europe and Japan. CME said it was working to fix the issue in the near-term.
The outage contributed to already slow trading volumes across the globe, following the U.S. Thanksgiving holiday on Thursday.
Futures are a key component of financial markets, used by a wide variety of participants -- from trading desks to individual speculators -- to hedge or take positions in a range of financial assets.
CME previously suspended trade on its Globex platform for about three hours due to a technical error in 2019.
Outages have previously been caused by hardware or software malfunctions, power and telecom failures, or in some cases, human error. Cyberattacks have been another cause in the past. A "cyber intrusion" disrupted some clearing systems and compromised customer data at CME in 2013.
