Trading interface for single-click open order cancel-replace

A system comprising:

• one or more processors configured to:
• request one or more open orders from a trading platform;
• send at least one of the one or more open orders to a client;
• request price data for the at least one of the one or more open orders;
• send the price data to the client;
• receive a limit price for a first open order from the one or more open orders;
• build a new order request, wherein the new order request is based at least on the first open order and the limit price;
• build a cancel order request, wherein the cancel order request is based at least on the first open order;
• and
• send a cancel-replace request to the trading platform, wherein the cancel-replace request is based at least on the new order request and the cancel order request, wherein the trading platform cancels the first open order based on the cancel-replace request and opens a new order based on the cancel-replace request.

A non-transitory computer-readable medium having instructions stored thereon, wherein the instructions comprise:

• instructions for requesting one or more open orders from a trading platform;
• instructions for sending at least one of the one or more open orders to a client;
• instructions for requesting price data for the at least one of the one or more open orders;
• instructions for sending the price data to the client;
• instructions for receiving a limit price for a first open order from the one or more open orders;
• instructions for building a new order request, wherein the new order request is based at least on the first open order and the limit price;
• instructions for building a cancel order request, wherein the cancel order request is based at least on the first open order;
• and
• instructions for sending a cancel-replace request to the trading platform, wherein the cancel-replace request is based at least on the new order request and the cancel order request, wherein the trading platform cancels an open order based on the cancel-replace request and opens a new order based on the cancel-replace request.