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UnderlyingInstrument

Number of legs that make up the Security

TagNameTypeRequiredDescription
146NumInGroup
Required
Specifies the number of repeating symbols specified.
311String
Must be specified as the first field in the repeating group. Required if NoRelatedSym > 0
312String
309String
305String
310String
Must be specified if a Future or Option. If a Future: UnderlyingSymbol, UnderlyingSecurityType, and UnderlyingMaturityMonthYear are required. If an Option: UnderlyingSymbol, UnderlyingSecurityType, UnderlyingMaturityMonthYear, PutOrCall, and UnderlyingStrikePrice are required
313MonthYear
Specifies the month and year of maturity. Required if UnderlyingMaturityDay is specified
314DayOfMonth
Can be used in conjunction with UnderlyingMaturityMonthYear to specify a particular maturity date
315Int
For Options
316Price
For Options
317Char
For Options
436Float
For Fixed Income, Convertible Bonds, Derivatives, etc
435Float
For Fixed Income
308Exchange
Can be used to identify the security
306String
362Int
Must be set if EncodedUnderlyingIssuer field is specified and must immediately precede it
363Data
Encoded (non-ASCII characters) representation of the UnderlyingIssuer field in the encoded format specified via the MessageEncoding field
307String
364Int
Must be set if EncodedUnderlyingSecurityDesc field is specified and must immediately precede it
365Data
Encoded (non-ASCII characters) representation of the UnderlyingSecurityDesc field in the encoded format specified via the MessageEncoding field
319Quantity
Quantity of particular leg in the Security
54Char Enum
Indicates if this leg of the security is to be Bought or Sold as part of this complex security
318Currency