SECURITY INSTRUMENT DATA SYSTEM WITHOUT PROPERTY INAPPLICABLE NULLS

This system and method for storage and retrieval of investment asset data in a computer system separates the data into many small files each of limited size and related to a functional attribute of the investment instrument. By storing the data in these separate files rather than all together as in the prior art, one develops a system that appears more complex, but is better suited to computer processing. It is faster, more easily programmed, less prone to error, and more readily expanded to handle diverse investment vehicles with different attributes such a unique interest formulations, discount bonds and the like without impact on previously recorded issues.