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Overheating Ripples Beyond Data Center

The Wall Street Journal

November 29, 2025

A 10-hour outage hit CME’s equity, bond and commodity futures trading

- ALEXANDER OSIPOVICH AND KIMBERLEY KAO

Inside a nondescript, boxy building in a Chicago suburb, the heat was rising. This wasn’t just an unusual issue for a chilly fall day in Illinois, It was also a problem for global markets.

This story is from the November 29, 2025 edition of The Wall Street Journal.

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