Abstract: A method for transacting with a trading application includes receiving an order message from a short message service component. The order message comprises a first short message comprising order information converted into a second format. The order information relates to an order for a trading system. The method includes processing the order information and transmitting order processing information in the second format to the short message service component to be converted into a second short message comprising the order processing information. The method may include charging a fee to an account of a user for transmitting the first short message comprising order information. The order information may comprise a buy or sell order for a first number of shares of an instrument representing an entertainment entity.