TagField NameData TypeUnion DatatypeDescriptionAddedDepr.Enums from tag
266AggregatedBookBoolean

Specifies whether or not book entries should be aggregated.



N=

Multiple entries per side per price allowed

Added  FIX.4.4  EP34[BookEntriesShouldNotBeAggregated]
Y=

one book entry per side per price

Added  FIX.4.4  EP34[BookEntriesToBeAggregated]
Added  FIX.4.2

Used in messages:
[MarketDataRequest]