Calculations may be defined for any instruments within a given Price Zone. These calculations may be defined for specific instruments or for a group or series of instruments. For example, a simple calculation might be to calculate the mid price from the bid and ask prices, a more complex calculation might be to calculate the futures series prices from a number of related instruments and price attributes.

The calculation definitions for each instrument are configured and maintained within the PVS System Administration GUI. A single instrument may have any number of calculations applied to it, or may be used within any number of calculations for other instruments.