Trading in foreign exchange, stock and bond futures, as well as several commodities, reopened by 13:35 GMT after being offline for more than 11 hours, according to LSEG data.
The Chicago Mercantile Exchange (CME) said the outage was caused by a cooling failure at a Chicago-area data centre run by CyrusOne. The company confirmed that the problem affected services for some clients, including CME.The shutdown halted trading in major currency pairs on CME’s EBS platform and paused benchmark futures such as West Texas Intermediate crude, the Nasdaq 100, Nikkei, palm oil and gold.
“A black eye”
Market activity had already been quiet because of the US Thanksgiving holiday. Traders said the outage increased the risk of sudden moves when markets fully reopened, especially with month-end positioning underway.
Ben Laidler, head of equity strategy at Bradesco BBI, told Reuters: “It’s a black eye to the CME and probably a reminder of how important market structure is and how interconnected everything is.”
