Open Book Daniel Guidotti 14 years ago Open BookAlso called: unmatched book, short book. Circumstance where bank has short term liabilities and long term assets creating imbalance.Random Finance Terms for the Letter OOne-Way MarketOPEC (Organization of Petroleum Exporting Countries)Open AccountOpen InterestOpen BookOpen ContractsOpen InterestOpen ListingOpen (Good-Till-Cancelled) OrderRecommended for you:Open Contracts Open Interest Open (Good-Till-Cancelled) Order Open Account