Example methods, apparatus, and computer readable storage media are described and disclosed. An example method includes receiving, by a computing device, market data related to a tradeable object. The example method includes displaying, by the computing device, a flexible price-volume indicator, the flexible price-volume indicators aligned with a specific value level in a value axis. The example method includes updating, by the computing device, a display property associated with the flexible price-volume indicator, the display property reflecting a quantity value determined based on the received market data. The example method includes displaying, by the computing device, the flexible price-volume indicator in a differentiated state based on a change in the market data.