Field RoundingModulus (469) - FIX Protocol FIX.5.0SP1
For CIV - a float value indicating the value to which rounding is required. i.e. 0 means round to a multiple of 0 units/shares; 0.5 means round to a multiple of 0.5 units/shares. The default, if RoundingDirection (468) is specified without RoundingModulus, is to round to a whole unit/share.
Added in protocol FIX.4.3