Identifies the source of the UnderlyingEquityID(1996).
Valid values:
| '1' | CUSIP |
| '2' | SEDOL |
| '3' | QUIK |
| '4' | ISINNumber |
| '5' | RICCode |
| '6' | ISOCurrencyCode |
| '7' | ISOCountryCode |
| '8' | ExchangeSymbol |
| '9' | ConsolidatedTapeAssociation |
| 'A' | BloombergSymbol |
| 'B' | Wertpapier |
| 'C' | Dutch |
| 'D' | Valoren |
| 'E' | Sicovam |
| 'F' | Belgian |
| 'G' | Common |
| 'H' | ClearingHouse |
| 'I' | ISDAFpMLSpecification |
| 'J' | OptionPriceReportingAuthority |
| 'K' | ISDAFpMLURL |
| 'L' | LetterOfCredit |
| 'M' | MarketplaceAssignedIdentifier |
| 'N' | MarkitREDEntityCLIP |
| 'P' | MarkitREDPairCLIP |
| 'Q' | CFTCCommodityCode |
| 'R' | ISDACommodityReferencePrice |
| 'S' | FinancialInstrumentGlobalIdentifier |
| 'T' | LegalEntityIdentifier |
| 'U' | Synthetic |
| 'V' | FidessaInstrumentMnemonic |
| 'W' | IndexName |
| 'X' | UniformSymbol |
| 'Y' | DigitalTokenIdentifier |
Used in: