Pre-Open Queuing Period

TPHs may submit Limit Orders and Quotes in simple instruments and Orders in spread instruments during the Pre-Open session. Market and Immediate-Or-Cancel (IOC) orders during Pre-Open will be rejected. Orders will not be executable until after the determination of the Opening Price and uncross matching. During Pre-Open the PITCH book may appear to be crossed. Queued Orders and Quotes may be cancelled or modified at any time during the Pre-Open up until the instrument opening process.