Systems and method for mediating risks associated with orders in an electronic trading system are provided. A front end component includes a plurality of trading engines that receive orders from traders. A back-end component includes a match system. The system includes a credit control module, which is located at the back-end (e.g., clearinghouse), front end, a combination thereof, or other location that communicates with the plurality of trading engines. The credit control monitors aggregate risk parameters for the trading engines and requests credits from trading engines.