In a G-Cross (Globex Cross), the order of the party that initiated the pre-execution must be submitted to CME Globex first. The counterparty’s order may not be submitted to CME Globex until a period of 5 seconds has elapsed from the time of entry of the first order.
Neither Request for Quote (RFQ) nor Request for Cross (RFC) are required in a G-Cross.
Please see the Market Regulation Advisory Notice for a complete description of each exchange-supported crossing protocol.
The list of eligible products and cross types is available here.