Match Trade Prevention (MTP)

MTP is supported for complex orders when interacting with orders on the complex book and when legging in to the individual series books.

The Exchange supports the following limited set of MTP Modifiers for Complex-to-Complex and Complex legging transactions MTP enforcement:

• Cancel Newest (N)
• Cancel Oldest (O)
• Cancel Both (B)

Complex-to-Complex orders are prevented from trading with each other only if the specified MTP Identifiers (Firm, EFID, Port Owner) are the same. For example, if one order specified Firm and one order specified EFID, the orders would be allowed to trade.

A Complex order that legs into the individual series books will always be cancelled (rather than the simple order) regardless of the MTP Modifier, if the MTP Identifier on any individual series book order matches the MTP Identifier on the Complex Order.