Data Types - FIX Protocol FIX.4.0

Name Base Type Description Added
Alpha-numeric free format strings, can include any character or punctuation except the delimiter. All char fields are case sensitive. FIX.2.7
Raw data with no format or content restrictions. Data fields are always immediately preceded by a length field. Caution: may contain the delimiter (SOH) character. FIX.2.7
Sequence of digits with optional decimal point and sign character (ASCII characters "-", "0" - "9" and "."); the absence of the decimal point within the string will be interpreted as the float representation of an integer value. All float fields must accommodate up to fifteen significant digits. FIX.2.7
Sequence of digits without commas or decimals and optional sign character (ASCII characters "-" and "0" - "9" ). The sign character utilizes one byte (i.e. positive int is "99999" while negative int is "-99999"). Note that int values may contain leading zeros (e.g. "00023" = "23"). Examples: 723 in field 21 would be mapped int as |21=723|. -723 in field 12 would be mapped int as |12=-723| The following data types are based on int. FIX.2.7
Date in YYYYMMDD format. Valid values: YYYY = 0000-9999, MM = 01-12, DD = 01-31. FIX.4.0
Time/date combination in YYYYMMDD-HH:MM:SS format, colons and dash required. Valid values: YYYY = 0000-9999, MM = 01-12, DD = 01-31, HH = 00-23, MM = 00-59, SS = 00-59. FIX.4.0