FIX Protocol Tag 1984: UnderlyingEventTime

Tag 1984 in each FIX version

Values and message usage as defined in a specific version.

• FIX 5.0 SP2

Data type

UTCTIMESTAMP: Date and time in UTC as YYYYMMDD-HH:MM:SS, optionally followed by fractions of a second (.sss).

Example

1984=20261020-14:30:05.123

Illustrative value. In a message, fields are separated by the SOH character (0x01), often shown as | or ^ in logs.

Message types that use tag 1984

• IOI 35=6
• Advertisement 35=7
• Execution Report 35=8
• News 35=B
• Email 35=C
• New Order Single 35=D
• New Order List 35=E
• Order Cancel Request 35=F
• Order Cancel/Replace Request 35=G
• Order Status Request 35=H
• Allocation Instruction 35=J
• Dont Know Trade 35=Q
• Quote Request 35=R
• Quote 35=S
• Market Data Request 35=V
• Market Data Snapshot Full Refresh 35=W
• Market Data Incremental Refresh 35=X
• Quote Cancel 35=Z
• Derivative Security List 35=AA
• New Order Multileg 35=AB
• Multileg Order Cancel/Replace 35=AC
• Trade Capture Report Request 35=AD
• Trade Capture Report 35=AE
• Order Mass Status Request 35=AF
• Quote Request Reject 35=AG
• RFQ Request 35=AH
• Quote Status Report 35=AI
• Quote Response 35=AJ
• Confirmation 35=AK
• Position Maintenance Request 35=AL
• Position Maintenance Report 35=AM
• Request For Positions 35=AN
• Request For Positions Ack 35=AO
• Position Report 35=AP
• Trade Capture Report Request Ack 35=AQ
• Trade Capture Report Ack 35=AR
• Allocation Report 35=AS
• Assignment Report 35=AW
• Collateral Request 35=AX
• Collateral Assignment 35=AY
• Collateral Response 35=AZ
• Collateral Report 35=BA
• Collateral Inquiry 35=BB
• Collateral Inquiry Ack 35=BG
• Security List Update Report 35=BK
• Allocation Instruction Alert 35=BM
• Execution Ack 35=BN
• Contrary Intention Report 35=BO
• Security Definition Update Report 35=BP
• Derivative Security List Update Report 35=BR
• Order Mass Action Report 35=BZ
• Order Mass Action Request 35=CA
• Security Mass Status 35=CO
• Trade Match Report 35=DC
• Party Risk Limit Check Request 35=DF
• Party Risk Limit Check Request Ack 35=DG
• Position Transfer Instruction 35=DL
• Position Transfer Report 35=DN
• Market Data Statistics Request 35=DO
• Market Data Statistics Report 35=DP
• Quote Status Request 35=a
• Mass Quote Ack 35=b
• Security Definition Request 35=c
• Security Definition 35=d
• Security Status Request 35=e
• Security Status 35=f
• Mass Quote 35=i
• List Strike Price 35=m
• Order Mass Cancel Request 35=q
• Order Mass Cancel Report 35=r
• New Order Cross 35=s
• Cross Order Cancel Replace Request 35=t
• Cross Order Cancel Request 35=u
• Security List Request 35=x
• Security List 35=y
• Derivative Security List Request 35=z

Covers every version from FIX 4.0 to 5.0 SP2, including fields reached through components and repeating groups. The version pages above show whether the tag is required in each message.