From the CME Globex Control Center, here is the summary of KEY changes, per CME market segment
Wednesday, July 3, 2024 - Market "CLOSE" > then reopens Wednesday night at normal times.
Thursday, July 4, 2024 - Market "HALT" > then reopens Thursday night at normal times.
**Any open positions must meet Exchange Maintenance Margin 15 minutes before the market close/halt (Wednesday at 12:00 CST and Thursday at 11:45 am CST).
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