EP013 – FIA Large Trader Position

Adapts Position Maintenance Request for regulatory large-trader position submissions in FIXML. It introduces a Large Trader Submission transaction type, a Large Trader Reportable Account party role, and delivery-notice and exchange-for-physical position types. It also makes PosReqID conditional so it may be omitted in batch submissions where no response is expected. The intended senders include clearing and non-clearing FCMs, with submissions made to regulators, exchanges or clearing organisations.