Indicates type of security (ISITC spec) Valid values: BA = Bankers Acceptance CB = Convertible Bond (Note not part of ISITC spec) CD = Certificate Of Deposit CMO = Collateralize Mortgage Obligation CORP = Corporate Bond CP = Commercial Paper CPP = Corporate Private Placement CS = Common Stock FHA = Federal Housing Authority FHL = Federal Home Loan FN = Federal National Mortgage Association FOR = Foreign Exchange Contract FUT = Future GN = Government National Mortgage Association GOVT = Treasuries + Agency Debenture IET Mortgage IOETTE MF = Mutual Fund MIO = Mortgage Interest Only MPO = Mortgage Principal Only MPP = Mortgage Private Placement MPT = Miscellaneous Pass-Thru MUNI = Municipal Bond NONE = No ISITC Security Type OPT = Option PS = Preferred Stock RP = Repurchase Agreement RVRP = Reverse Repurchase Agreement SL = Student Loan Marketing Association TD = Time Deposit USTB = US Treasury Bill WAR = Warrant ZOO = Cats, Tigers & Lions (a real code: US Treasury Receipts) ? = “Wildcard” entry (used on Security Definition Request message)