A computer implemented method, computer system, and computer program product display market transactions in a graphical user interface. A market transaction system identifies a selected market and a market session displayed in a first region of the graphical user interface. In the first region of the graphical user interface, the market transaction system displays transactions for market participants in the selected market over the market session. The transactions submitted by each market participant are separately displayed from those of other market participants. In a second region of the graphical user interface, the market transaction system may display a number of reports that are relevant to the selected market. The market transaction system subscribes a user to a report in response to receiving the user's selection of the report from the second region of the graphical user interface.