Group 1 - The core point of the article is that CME Group experienced a significant trading interruption on November 28, which lasted for several hours before gradually resuming operations [1] - The electronic brokerage system (EBS) used for foreign exchange trading reopened at 20:00, but the timeline for other affected markets to resume operations was not disclosed [1] - The foreign exchange market reopened without major fluctuations after the interruption, indicating stability in trading post-recovery [1] Group 2 - The duration of this interruption was longer than a similar incident caused by a technical error in 2019, highlighting the extensive impact of CME Group and its Globex electronic trading platform [1]