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CME Outage Halts Trading Across Multiple Asset Classes

Saturday Nov 29 2025 00:00

2 min

Table of Contents

1. Widespread CME Outage Raises Concerns
1.1 Apparent Cause of the Disruption
1.2 Impact on the Markets
1.3 "Flying Blind" for Traders
1.4 Criticism and Reactions
1.5 Lessons Learned

Widespread CME Outage Raises Concerns

The global financial markets faced an unexpected jolt as the Chicago Mercantile Exchange (CME), the world's largest exchange operator by market capitalization, experienced a major outage that halted trading across several of its key platforms. The outage encompassed foreign exchange, commodities, US Treasury futures, and equity futures, leading to the freezing of some benchmark indices and sparking uncertainty among traders.

Apparent Cause of the Disruption

The CME attributed the outage to an issue with the cooling system at the CyrusOne data center. However, further details regarding the nature of the problem or the expected duration of the repair were not provided. The exchange simply stated that technical support teams were working to resolve the issue "as soon as possible."

Impact on the Markets

The disruption led to the cessation of price updates for several key futures contracts, including WTI crude oil, 10-year US Treasury notes, the S&P 500, Nasdaq 100, Nikkei, palm oil, and gold futures. Price updates also ceased on the EBS foreign exchange platform, which sees an average daily turnover of approximately $60 billion USD.

"Flying Blind" for Traders

While spot foreign exchange traders may be able to find alternative trading venues, the outage left many brokers in a state of "flying blind," hesitant to trade contracts due to a lack of real-time price quotations. Spot gold and silver markets experienced sharp fluctuations due to liquidity issues.

Criticism and Reactions

Numerous analysts and traders expressed concern and frustration over the outage. Thomas Helaine, head of equity sales at TP ICAP Europe, described the situation as "a bit like flying in the dark." Christopher Forbes, head of CMC Markets in Asia and the Middle East, noted that he hadn't seen such a widespread exchange outage in 20 years.

Lessons Learned

This incident highlights the importance of robust backup systems and effective contingency plans in financial infrastructure. It also underscores the operational risks associated with relying on a few key data centers. Exchanges and financial institutions must invest in operational resilience to minimize the impact of such incidents in the future.

Risk Warning: this article represents only the author’s views and is for reference only. It does not constitute investment advice or financial guidance, nor does it represent the stance of the Markets.com platform.When considering shares, indices, forex (foreign exchange) and commodities for trading and price predictions, remember that trading CFDs involves a significant degree of risk and could result in capital loss.Past performance is not indicative of any future results. This information is provided for informative purposes only and should not be construed to be investment advice. Trading cryptocurrency CFDs and spread bets is restricted for all UK retail clients. 

Written by:

Liam James

CME Outage Halts Trading Across Multiple Asset Classes

Widespread CME Outage Raises Concerns

Apparent Cause of the Disruption

Impact on the Markets

"Flying Blind" for Traders

Criticism and Reactions

Lessons Learned

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