Order Restated Message Fields

Order Restated messages are sent to inform the Member that an order has been asynchronously modified for some reason without an explicit Modify Order message request having been sent. Some example (non-exhaustive) reasons for Order Restated messages being sent:

• A reserve (iceberg) order has been reloaded (BZX , C1, and C2 Only).
• An order's remaining quantity was decremented because of a prevented wash trade.
• An order is represented on the Cboe Options Trading Floor (C1 Only).
• A routed order has returned to rest on the book after matching liquidity on another market.

Members should be prepared to accept and apply Order Restated messages for any reason.

In some cases, the last message to be received on an order's lifecycle will be an Order Restated message. The way to know the order is no longer live is to inspect LeavesQty. An example of this would be restatement of an order in some cases due to PreventMatch being set to d.