CME Futures Outage: Cooling Failure Halts Global Trading, FX Partially Restarts on Black Friday
Date: November 28, 2025Location: Chicago / London / Singapore Key points A Black Friday nobody expected Black Friday, typically a quieter session for global derivatives, turned into one of the most disruptive trading days in years after CME Group suffered a major technical outage tied to a third‑party data center cooling failure. Late on Thursday evening U.S. time, CME reported that its Globex futures and options markets and its EBS foreign‑exchange platform had been halted due to “a cooling issue at CyrusOne data centers,” according to repeated system alerts and a matching post on X (formerly Twitter).CME Group+2X (formerly Twitter)+2