Tag 309
UnderlyingSecurityID
Abbreviation:
Description
Underlying security’s SecurityID.
See SecurityID field for description
Wire Format & Usage Example
Single field (key=value)
309=EXAMPLE
In a FIX message (MassQuoteAcknowledgement)
8=FIX.4.4 | 9=... | 35=b | 49=SENDER | 56=TARGET | 34=1 | 52=20240101-09:30:00.000 | … | 309=EXAMPLE | … | 10=...
Fields are delimited by SOH (ASCII 0x01), shown here as " | ". The highlighted field 309=EXAMPLE is this field's position in the message.