ADVANCED ORDER TYPES
MID PEG ORDER TYPE
An order pegged to the mid price on the Primary Market. If an order is priced, the order is pegged up (for buy order) or down (for sell order) to the specified limit. The rounding methodology followed is: Buy orders are rounded down and sell orders are rounded up, to the applicable tick of the price.
POST ONLY ORDER TYPE
A Post-Only order type is a passive order designed to rest on the Chi-X book and never take liquidity by trading against existing passive orders. If your order would result in a cross with a resting order and remove liquidity, it will be cancelled back.

PRIMARY PEG ORDER TYPE
An order pegged to the best bid (for buy order) or offer (for sell order) on the Primary Market. The order may be priced or un-priced. If an order is priced, the order is pegged up (for buy order) or down (for sell order) to the specified limit.

ICEBERG ORDER TYPE
The displayed quantity is smaller than that of the order quantity. If the outstanding quantity is less than the displayed quantity, the full outstanding quantity is displayed. An iceberg order after execution of a full displayed quantity is then re-queued back to the order book as if it were a new order entering at the time.
MARKET PEG ORDER TYPE
An order pegged to the opposite side at a price equal to that on the Primary Market. In other words, for a market pegged buy order, it is set to track the best ask price in the Primary Market. For a market pegged sell order, it is set to track the best bid price in the primary market. If an order is priced, the order is pegged up (for buy order) or down (for sell order) to the specified limit.