Due to a cooling issue at CyrusOne data centers, our markets are currently halted. 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.

— CME Group (@CMEGroup) November 28, 2025

BrokerTec EU markets are open and trading. All other CME Group markets remain halted due to a data center cooling issue at CyrusOne. We will provide updates as they are available.

— CME Group (@CMEGroup) November 28, 2025

BrokerTec EU, BrokerTec US Actives and EBS are open and trading. Futures and options markets will open at 7:30am Central Time.

— CME Group (@CMEGroup) November 28, 2025

All CME Group markets are open and trading.

— CME Group (@CMEGroup) November 28, 2025

Ben Kizemchuk, senior investment advisor and portfolio manager at Wellington-Altus, said:

I've had a few conversations lately about conditions vs catalysts. I monitor for conditions, as catalysts are inherently unknowable.
For example, everyone's cost of capital just went up, unexpectedly because futures can't trade. This is a true black swan.
So far spy premarket is… https://t.co/JbwCfUyoFP

— Ben Kizemchuk (@BenKizemchuk) November 28, 2025

Author Shanaka Anslem Perera, said:

The world’s financial system just stopped. Not war. Not hackers. Heat. A cooling pipe failed in Illinois and 90% of global derivatives went dark. The machines that price everything exceeded their thermal limits. This is the future we built.

Read the deep dive article -… https://t.co/xq9LzlQ1s8 pic.twitter.com/NLbZ36473p

— Shanaka Anslem Perera ⚡ (@shanaka86) November 28, 2025

“The CME Group, which prices everything from Treasury bonds to crude oil to the S&P 500, went dark because the machines that run global finance exceeded their thermal limits. The heat generated by computation overwhelmed the capacity to reject it.

This is not a glitch. This is a structural warning.

The numbers tell the story: U.S. data centers consumed 183 terawatt-hours of electricity in 2024, more than four percent of national consumption, equivalent to Pakistan’s entire annual demand. By 2030, this doubles to 426 terawatt-hours. AI workloads are growing at thirty percent annually. Every watt becomes heat. Every server needs cooling.

The infrastructure was built for 2015. The demands are from 2025. We have reached the thermodynamic ceiling of centralized finance.

The CME sold this data center in 2016 for $130 million and leased it back. When the cooling failed, they owned nothing. They controlled nothing. They waited, like the rest of us, for someone else to fix the pipes.

Ninety percent of global derivatives volume, frozen by physics. Treasury futures offline. Energy markets dark. Agricultural pricing halted from Chicago to Kuala Lumpur.

The lesson is simple and profound: The limit on financial transaction throughput is not code efficiency. It is heat rejection capacity. We built the engine of global price discovery on silicon that melts.”

Crazy the impact of this.

Feels like an opportunity to have new competitors both on-chain and off, like FMX. pic.twitter.com/cTbBrbXTbk

— Mike Cahill | Pyth🔮 (@mdomcahill) November 28, 2025

November 28, 2025 will officially go down in history as “Thermodynamic Thursday”.

The the day a trillion-dollar derivatives market was defeated by 87 cents per kilowatt-hour of cooling. 📉🌡️

— EG137 (@EchoGenesis137) November 28, 2025

Trading Of Bursa Malaysia Derivatives’ Products On CME Group’s Globex System Remains Halted For The Day

Trading of Bursa Malaysia Derivatives’ products on the Globex system¹ will not resume today following an outage on Globex, which is Chicago Mercantile Exchange (“CME”) Group’s electronic trading platform that facilitates global derivatives trading. Settlement of Bursa Malaysia Derivatives’ contracts continued as normal throughout the day.