1. A computer system for management of financial data relating to funds holding investments, comprising: one or more data storage devices storing data in a common data format; a hardware server configured for execution of instructions embodied in the following components, the components comprising processor-executable instructions stored on one or more non-transitory computer-readable media, and for accessing of the data stored in the common data format in the one or more data storage devices; and a communications link configured to permit other systems to access the data in the one or more data storage devices; wherein the components comprise: an expense component for accessing fund expense calculation data, performing verification of the fund expense calculation data and storing the verified fund expense data in the one or more data storage devices; a pre-trade component for receiving data relating to fund ownership, determining data indicative of fund trading requirements and storing the data indicative of fund trading requirements in the one or more data storage devices; a settlement component for accessing data stored in the data storage devices indicative of instructions for execution of trades, determining data indicative of instructions for payment in settlement of trades consistent with the trade instructions data, and providing output signals indicative of the instructions for payment in settlement of trades; and an accounting component for accessing accounting ledgers stored in one or more of the data storage devices and updating the accounting ledgers.