Creating Efficiencies and Reducing Operational Risk with an Investment Book of Record (IBOR) An increasingly critical middle office function is delivering accurate and timely position data to the front office and ensuring redundancy with outsourced back-office services. This article discusses the operational, regulatory and competitive drivers for automated position management facilitated by the Investment Book of Record (IBOR). While the IBOR has become mainstream technology for buy-side firms, its importance and utility to both the front and back office continues to grow.