Data for the instruments within a given Price Zone may be collected from any number of data sources. Data sources may include external market data feeds, in-house spreadsheets and in-house applications. In addition, instrument data may be provided (collected) manually via the PVS Core System GUI.

The data sources for each instrument are configured and maintained within the PVS System Administration GUI. A single instrument may have any number of data sources defined, together with the priority of the various data sources (primary, secondary, and so on).