Tag 639

PriceImprovement

Abbreviation: PxImprvmnt

TypePriceOffset

Tag639

AddedFIX.4.3

Used in1 messages

Amount of price improvement.

Single field (key=value)

639=150.25

In a FIX message (ExecutionReport)

8=FIX.4.4 | 9=... | 35=8 | 49=SENDER | 56=TARGET | 34=1 | 52=20240101-09:30:00.000 | … | 639=150.25 | … | 10=...

Fields are delimited by SOH (ASCII 0x01), shown here as " | ". The highlighted field 639=150.25 is this field's position in the message.