Abstract: A system and method for comparing investment transaction costs of institution peers includes database and a processor coupled to a network. The processor may be configured receive, via the network, security transaction data of investment institutions, which included data for traded securities, transaction order sizes, execution prices, peer identities and timestamps. The processor is further capable of grouping transaction data into groups of orders, calculating order costs and environmental factors for each order, and calculating a peer's average order cost within each group. The data are stored in the database so that it may be retrieved and displayed.