Single Side Update Expanded (Short) Message Fields

Table 1. Single Side Update Expanded (Short)
Field Name	Offset	Length	Type/(Value)	Description
Length	0	1	Binary	Length of this message including this field.
Message Type	1	1	0xD4	Single Side Update Expanded (Short) Message
Time Offset	2	4	Time Offset	Nanosecond offset from last unit timestamp.
Symbol	6	6	Printable ASCII	Symbol right padded with spaces.
Side	12	1	Alphanumeric	B=Bid Side S=Ask Side
Bit Fields	13	1	Bit Field	Bits 0-2 - Reserved Bit 3 - AON 0=Price level is a firm quote 1=Price Level is AON (All or None) Bit 4 - Customer (C1 Only) 0=Not customer specific. 1=Price Level is specifically for firm customer quotes. Bits 5-7 - Reserved
Price	14	2	Binary Short Price	Price
Quantity	16	2	Binary	Total number of contracts on the inside book (customer and non-customer). If Customer bit is set, this will be zero.
Customer Quantity	18	2	Binary	Number of customer contracts on the inside book. A zero value denotes that there are no customer contracts at the inside price. If Customer bit is set, this will be the number of customer contracts on the inside book considering only customer firm quotes. Will always be zero for C2.
Total Length=20 bytes