1. An incoming data message router of an electronic exchange, comprising: an input data message interface configured to receiving a at least one incoming order data message from an external trading device, a first and a second ranking unit, and a switch device configured to, based on order data message content, routing the at least one incoming order data message to one of the first and the second ranking units, wherein the switch device further configured to: route order data messages including bid orders to the first ranking unit, and route order data message including ask orders to the second ranking unit; the first ranking unit and the second rank unit, each respectively and independently, further configured to: rank the at least one, either bid or ask, order data message based on a comparison of a ranking value parameter, and transmit only a pre-defined number of top ranked, either bid or ask, order data messages to a matching unit of the electronic exchange or subsequent processing.