Abstract: The invention relates to both a method and a computer system that are designed to provide a bid positioning system using a computerized bid proxy. The bid proxy takes instructions from the bidder and then bids based upon these instructions. Using a bid positioning system allows this bidder to place its bids in relation to a lead bid placed by another bidder in an auction based upon either a nominal or percentage distance from the lead bid. In a preferred embodiment, this computerized bid proxy is used in a shipment management system. This system allows a shipper to present at least one shipping requirement for a particular shipment to a centralized server. These shipping requirements could include the origin and destination of a shipment, the time or delivery date of a shipment, the number of articles being shipped, and the weight or volume of the shipment.