Please be informed that effective at the start of business Monday, March 14, 2011, the legacy 3270 (MVSA) Mutual Offset System (MOS) application will be decommissioned. Subsequently, “MOS Trades” will now be handled as “Cross-Exchange” allocations within Front-End Clearing Plus (FEC+). In conjunction with this change, the current MOS FIXML outbound-only API will be replaced with the new Allocation FIXML outbound-only API. A fully functional Allocation API for both inbound and outbound allocation messages will be available shortly thereafter in the second quarter of 2011.
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