Auction Responder Specs

Both SpiderRock Connect and on-exchange auctions can be responded to via NewOrderSingle and NewOrderMultileg FIX messages.

Typically, a responder would subscribe for auction notices via a SpiderRock MLink server or by asking for a SpiderRock client FIX session with LiquidityRequest messages enabled. Both methods supply an AuctionNoticeID (sometimes called noticeNumber) that the client is expected to return to SpiderRock when responding to an auction.

Response orders can cancelled at any time by the user and will automatically expire at the end of the auction sequence they are responsive to.

SpiderRock generally follows FIX 4.4 conventions but can switch to FIX 4.2 conventions on request.

Application Messages

LiquidityRequest (SpiderRock to Client)

QuoteRequest<R> messages are used to notify responders about liquidity response opportunities. The same message is used for both flash (20ms) and block (up to 5 minutes) auctions.

Tag	Field Name	Req'd	Type	Comments
	StandardHeader	Y		MsgType = R
131	QuoteReqID	Y	string	Must be included as SRCrossNoticeID (24-character max) on New Order Single and New Order Multileg responses.
55	Symbol	Y	string	If 167=OPT: OSI Option Code If 167=MLEG: Exchange Symbol
167	SecurityType	Y	string	OPT = Equity Option MLEG = Multileg Spread
38	OrderQty	Y	int	Executable quantity
44	Price	N	float	Will exist if initiator is disclosing a public price
54	Side	N	char	1=Buy 2=Sell Initiator Side will exist if initiator is disclosing a public side
104	IOIQualifier	N	char	L = UptoQty A = AllorNone M = QtyOrMore
303	QuoteRegType	Y	char	B = Block F = Flash
60	TransactTime	Y	utcDttm	YYYYMMDD-HH:MM:SS.sss
126	ExpireTime	Y	utcDttm	YYYYMMDD-HH:MM:SS.sss
5022	SRClientFirm	N	string	SRClientFirmCode of the initiating client firm (if disclosed)
555	No Legs	N	int	Number of legs (MLeg Only)
=600	LegSymbol	Y	string	If 609=CS: Leg Exchange symbol If 609=OPT: Option OSI code
=609	LegSecurityType	Y	string	OPT = Equity Option CS = Equity
=624	LegSide	Y	char	1 = Buy 2 = Sell
=623	LegRatioQty	Y	int	The ratio of quantity for this individual leg relative to the entire multileg security
	StandardTrailer	Y

NewOrderSingle (Client to SpiderRock)

NewOrderSingle<D> messages are used to submit responses to single security auction notices (liquidity requests).

Tag	Field Name	Req'd	Type	Comments
	StandardHeader	Y		MsgType = D
11	ClOrdId	Y	string	Client order ID (24 character max)
5208	SRCrossNoticeID	Y	string	QuoteRequestID from Liquidity Request
5094	SROrderHandling	Y	int	23 = BlockResponse
1	Account	Y	String	SR account acronym
461	CFI Code	N	string	OC = Option - Call[OPT] OP = Option - Put[OPT]
201	PutOrCall	N	int	Alternative to CFICode<461> 0 = Put 1 = Call
167	SecurityType	N	string	Alternative to CFICode<461> OPT - Equity Option
55	Symbol	Y	string	Exchange Symbol - May incorporate symbol suffix (eg. VIA.A) - For OPRA options, SpiderRock accepts an OSI code
65	SymbolSfx	N	string	Symbol suffix
541	MaturityDate	N	string	For Options YYYYMMDD
200	MaturityMonthYear	N	string	Alternative to MaturityDate<541> YYYYMM
205	MaturityDay	N	int	Alternative to MaturityDate<541> 1-31
202	StrikePrice	N	float	Option strike price
54	Side	Y	char	1 = Buy 2 = Sell Must be opposite of the side in the liquidity request
38	OrderQty	Y	int	Executable quantity
77	OpenClose	N	char	For Options O = Open C = Close A = Auto (SR determines whether child orders should be marked open or closed by looking up account/aggregate group position when child orders are created).
44	Price	Y	double	Liquidity response price (4 decimals; does not need to be in normal price increments).
5098	SROrderLimitType	N	int	2 = Price (static price) 3 = PriceDeGa (delta/gamma adjusted price; uMid reference) 4 = PriceDeGaX (delta/gamma adjusted price; uCross reference) Default is Price
5104	SRTakeReachRule	Y	char	5 = FullSize 10 = AtMost25 11 = AtMost50
5108	SROrderRefUPrc	N	float	The initial reference price for PriceDeGa and PriceDeGaX order limit types. Default is SR supplied underlier reference at time of order arrival.
5110	SROrderRefDelta	N	float	The reference delta for PriceDeGa and PriceDeGaX order limit types. Default is SR supplied delta at time of order arrival.
5112	SROrderRefGamma	N	float	The reference gamma for PriceDeGa and PriceDeGaX order limit types. Default is SR supplied gamma at time of order arrival.
60	TransactTime	Y	utcDttm	YYYYMMDD-HH:MM:SS (Message must arrive within 15 seconds to be considered valid).
	StandardTrailer	Y

NewOrderMultileg (Client to SpiderRock)

NewOrderMultileg<AB> messages are used to submit responses to multi-leg security auction notices (liquidity requests).

Tag	Field Name	Req'd	Type	Comments
	StandardHeader	Y		MsgType = AB
11	ClOrdID	Y	string	Client order ID (24-character max)
5208	SRCrossNoticeID	Y	string	QuoteRequestID from LiquidityRequest
5094	SROrderHandling	Y	int	23 = BlockResponse
1	Account	Y	string	SR account acronym
55	Symbol	Y	string	Exchange symbol e.g. AAPL
167	SecurityType	N	string	MLEG = Multileg
555	NoLegs	Y	int	Number of legs Maximum of 6 option legs and 1 equity leg
654	LegRefId	Y	string	Used to identify a specific leg
608	LegCFICode	N	string	ES = Equity Common Shares [CS] F = Future [FUT] OC = Option - Call [OPT] OP = Option - Put [Opt]
609	LegSecurityType	N	string	Alternative to LegCFICode<608> for Equities and Futures only. - Must be specified for Futures and Options - If not specified, Equity assumed OPT - Equitiy Option CS or <empty> - Equity
600	LegSymbol	Y	string	Leg Exchange symbol - may incorporate symbol suffix, e.g. VIA.A - For OPRA options, spiderRock accepts an OSI code in this field. - For standardized futures products, maturity information can be inclided in this field, (e.g. GCZ22 [for the Dec-22 Comex Gold Future])
601	LegSymbolSfx	N	string	Leg Symbol Suffix
611	LegMaturityDate	N	string	For Futures and Options YYYYMMDD
612	LegStrikePrice	N	float	Option strike price
624	LegSide	Y	char	1 = Buy 2 = Sell 5 = Sell short 6 = Sell short exempt Y = Sell auto (SR determines whether child orders should be selling long or short by looking up account/aggregate group position when child orders are created).
623	LegRatioQty	Y	int	The ratio of quantity for this individual leg relative to the entire multileg security
564	LegPositionEffect	N	char	For Option leg: O = Open C = Close For Stock leg when 624=1 (Buy) and 54=2 (Sell): 2 = Sell long 5 = Sell short 6 = Sell short exempt A = Auto (SR determi9nes whether child orders should be marked open or closed by looking yp account/aggregate group position when child orders are created). Default is A (Auto) if not supplied. Note: Auto is only allowed if the trading account is configured for auto-marking.
54	Side	Y	char	1 = Buy 2 = Sell Must be opposite of the side in the liquidity request
38	OrderQty	Y	int	Executable quantity
44	Price	Y	double	Liquidity response price (4 decimals; does not need to be in normal price increments).
5098	SROrderLimitType	N	int	2 = Price (static price) 3 = PriceDeGa (delta/gamma adjusted price; uMid reference) 4 = PriceDeGaX (delta/gamma adjusted price; uCross reference) Default is Price
5104	SRTakeReachRule	Y	char	5 = FullSize 10 = AtMost25 11 = AtMost50
5108	SROrderRefUPrc	N	float	The initial reference price for PriceDeGa and PriceDeGaX order limit types. Default is SR supplied underlier reference at time of order arrival.
5110	SRorderRefDelta	N	float	The reference delta for PriceDeGa and PriceDeGaX order limit types. Default is SR supplied delta at time of order arrival.
5112	SROrderRefGamma	N	float	The reference gamma for PriceDeGa and PriceDeGaX order limit types. Default is SR supplied gamma at time of order arrival.
60	TransactTime	Y	utcDttm	YYYYMMDD-HH:MM:SS (Message must arrive within 15 seconds to be considered valid).
	StandardTrailer	Y

ExecutionReport (SpiderRock to Client)

Tag	Field Name	Req'd	Type	Comments
	StandardHeader	Y		MsgType = 8
37	OrderID	Y	string	Unique ID for order chain assigned by SpiderRock
11	ClOrdID	Y	string	Client order ID (24-character max)
41	OrigClordID	N	string	Conditionally required for response to a Cancel or Cancel/Replace request (ExecType=PendingCancel, Replaced, or Canceled)
76	ExecBroker	N	string	Value from executing venue
5036	SRUsername	N	string	Used for customer service and futures compliance
5012	SRAltAccnt	N	string
5410	SRExtTraderID	N	string
5350	SRExecBrokerMPID	N	string	Executing Broker MPID
17	ExecID	Y	string	Unique ID assigned by SpiderRock
20	ExecTransType	Y	Int
19	ExecRefID	N	string
150	ExecType	Y	char	0 = New 3 = DoneForDay 4 = Canceled 5 = Replaced 6 = PendingCxl 8 = Rejected C = Expired D = Restated E = PendingRpl F = Trade G = TradeCorrect H = TradeCxl I = OrderStatus
60	TransactTime	Y	utcDttm	YYYYMMDD-HH:MM:SS.sss Time the transaction represented by this ExecutionReport occured
39	OrdStatus	Y	char
1	Account	Y	string	Assigned by SpiderRock
54	Side	Y	char	Value from executing venue Value may differ from client's order if execution order is sold short.
38	OrderQty	Y	int
40	OrdType	Y	char	Order type of this execution
77	OpenClose	N	char	Value from client's order
44	Price	N	double	Value from client's order
528	OrderCapacity	N	char	Value on the cross order to venue as configured for your account 1 = Agent 4 = Principal
32	LastShares	Y	int
31	LastPx	Y	double
30	LastMkt	N	string	Value from executing venue
29	LastCapacity	N	string	Value from executing venue
151	LeavesQty	Y	int	0 if order is not active, not (OrderQty-Cum)
14	CumQty	Y	int
6	AvgPx	Y	double	Execution Price
58	Text	N	string	In the case of a reject this may be populated with a reject reason. For manual consumption only; the exact strings are prone to change
442	MultiLegReportingType	N	char	Used to indicate what an Execution Report represents (e.g. used with multi-leg securities, such as option strategies, spreads, etc.). 1 = SINGLE_SECURITY 2 = INDIVIDUAL_LEG 3 = MULTI_LEG_SECURITY
654	LegRefID	N	string	Used to identify a specific leg for multileg order execution reports
439	ClearingFirm	N	string	Value from client's order, or SpiderRock account config
440	ClearingAccount	N	string	Value from client's order, or SpiderRock account config
167	SecurityType	N	string	Value from client's order
55	Symbol	Y	string	Value from client's order
65	SymbolSfx	N	string	Value from client's order
461	CFICode	N	string	Value from cient's order
201	PutOrCall	N	int	Value from client's order
541	MaturityDate	N	string	Value from client's order YYYYMMDD
200	MaturityMonthyear	N	string	Value from client's order YYYYMM
205	MaturityDay	N	int	Value from client's order 1-31
202	StrikePrice	N	price	Value from client's order
	StandardTrailer	Y

OrderCancelRequest (Client to SpiderRock)

Tag	Field Name	Req'd	Type	Comments
	Standard Header	Y		MsgType = F
11	ClOrdID	Y	string	Client order ID (24-character max)
41	OrigClordID	Y	string	ClOrdID<11> of the previous order (NOT the initial order of the day) when canceling an order (24-character max)
58	Text	N	string	User supplied text such as a cancel reason
60	TransactTime	Y	utcDttm	YYYYMMDD-HH:MM:SS.sss
	Standard Trailer	Y

OrderCancelReplaceRequest (Client to SpiderRock)

OrderCancelReplaceRequest<G> messages are used to replace responses to single security auction notices (liquidity requests).

Tag	Field Name	Req'd	Type	Comments
	StandardHeader	Y		MsgType = G
11	ClOrdId	Y	string	Unique client order ID (24 character max)
41	OrigClordID	Y	string	ClOrdID<11> of the previous order that is being replaced
5208	SRCrossNoticeID	Y	string	QuoteRequestID from Liquidity Request
5094	SROrderHandling	Y	int	23 = BlockResponse
1	Account	Y	String	SR account acronym
461	CFI Code	N	string	OC = Option - Call[OPT] OP = Option - Put[OPT]
201	PutOrCall	N	int	Alternative to CFICode<461> 0 = Put 1 = Call
167	SecurityType	N	string	Alternative to CFICode<461> OPT - Equity Option
55	Symbol	Y	string	Exchange Symbol - May incorporate symbol suffix (eg. VIA.A) - For OPRA options, SpiderRock accepts an OSI code
65	SymbolSfx	N	string	Symbol suffix
541	MaturityDate	N	string	For Options YYYYMMDD
200	MaturityMonthYear	N	string	Alternative to MaturityDate<541> YYYYMM
205	MaturityDay	N	int	Alternative to MaturityDate<541> 1-31
202	StrikePrice	N	float	Option strike price
54	Side	Y	char	1 = Buy 2 = Sell Must be opposite of the side in the liquidity request
38	OrderQty	Y	int	Executable quantity
77	OpenClose	N	char	For Options O = Open C = Close A = Auto (SR determines whether child orders should be marked open or closed by looking up account/aggregate group position when child orders are created).
44	Price	Y	double	Liquidity response price (4 decimals; does not need to be in normal price increments).
5098	SROrderLimitType	N	int	2 = Price (static price) 3 = PriceDeGa (delta/gamma adjusted price; uMid reference) 4 = PriceDeGaX (delta/gamma adjusted price; uCross reference) Default is Price
5104	SRTakeReachRule	Y	char	5 = FullSize 10 = AtMost25 11 = AtMost50
5108	SROrderRefUPrc	N	float	The initial reference price for PriceDeGa and PriceDeGaX order limit types. Default is SR supplied underlier reference at time of order arrival.
5110	SROrderRefDelta	N	float	The reference delta for PriceDeGa and PriceDeGaX order limit types. Default is SR supplied delta at time of order arrival.
5112	SROrderRefGamma	N	float	The reference gamma for PriceDeGa and PriceDeGaX order limit types. Default is SR supplied gamma at time of order arrival.
60	TransactTime	Y	utcDttm	YYYYMMDD-HH:MM:SS (Message must arrive within 15 seconds to be considered valid).
	StandardTrailer	Y

MultilegOrderCancelReplace (Client to SpiderRock)

MultilegOrderCancelReplace<AC> messages are used to replace responses to multi-leg security auction notices (liquidity requests).

Tag	Field Name	Req'd	Type	Comments
	StandardHeader	Y		MsgType = AC
11	ClOrdID	Y	string	Client order ID (24-character max)
41	OrigClordID	Y	string	ClOrdID<11> of the previous order that is being replaced
5208	SRCrossNoticeID	Y	string	QuoteRequestID from LiquidityRequest
5094	SROrderHandling	Y	int	23 = BlockResponse
1	Account	Y	string	SR account acronym
55	Symbol	Y	string	Exchange symbol e.g. AAPL
167	SecurityType	N	string	MLEG = Multileg
555	NoLegs	Y	int	Number of legs Maximum of 6 option legs and 1 equity leg
654	LegRefId	Y	string	Used to identify a specific leg
608	LegCFICode	N	string	ES = Equity Common Shares [CS] F = Future [FUT] OC = Option - Call [OPT] OP = Option - Put [Opt]
609	LegSecurityType	N	string	Alternative to LegCFICode<608> for Equities and Futures only. - Must be specified for Futures and Options - If not specified, Equity assumed OPT - Equitiy Option CS or <empty> - Equity
600	LegSymbol	Y	string	Leg Exchange symbol - may incorporate symbol suffix, e.g. VIA.A - For OPRA options, spiderRock accepts an OSI code in this field. - For standardized futures products, maturity information can be inclided in this field, (e.g. GCZ22 [for the Dec-22 Comex Gold Future])
601	LegSymbolSfx	N	string	Leg Symbol Suffix
611	LegMaturityDate	N	string	For Futures and Options YYYYMMDD
612	LegStrikePrice	N	float	Option strike price
624	LegSide	Y	char	1 = Buy 2 = Sell 5 = Sell short 6 = Sell short exempt Y = Sell auto (SR determines whether child orders should be selling long or short by looking up account/aggregate group position when child orders are created).
623	LegRatioQty	Y	int	The ratio of quantity for this individual leg relative to the entire multileg security
564	LegPositionEffect	N	char	For Option leg: O = Open C = Close For Stock leg when 624=1 (Buy) and 54=2 (Sell): 2 = Sell long 5 = Sell short 6 = Sell short exempt A = Auto (SR determi9nes whether child orders should be marked open or closed by looking yp account/aggregate group position when child orders are created). Default is A (Auto) if not supplied. Note: Auto is only allowed if the trading account is configured for auto-marking.
54	Side	Y	char	1 = Buy 2 = Sell Must be opposite of the side in the liquidity request
38	OrderQty	Y	int	Executable quantity
44	Price	Y	double	Liquidity response price (4 decimals; does not need to be in normal price increments).
5098	SROrderLimitType	N	int	2 = Price (static price) 3 = PriceDeGa (delta/gamma adjusted price; uMid reference) 4 = PriceDeGaX (delta/gamma adjusted price; uCross reference) Default is Price
5104	SRTakeReachRule	Y	char	5 = FullSize 10 = AtMost25 11 = AtMost50
5108	SROrderRefUPrc	N	float	The initial reference price for PriceDeGa and PriceDeGaX order limit types. Default is SR supplied underlier reference at time of order arrival.
5110	SRorderRefDelta	N	float	The reference delta for PriceDeGa and PriceDeGaX order limit types. Default is SR supplied delta at time of order arrival.
5112	SROrderRefGamma	N	float	The reference gamma for PriceDeGa and PriceDeGaX order limit types. Default is SR supplied gamma at time of order arrival.
60	TransactTime	Y	utcDttm	YYYYMMDD-HH:MM:SS (Message must arrive within 15 seconds to be considered valid).
	StandardTrailer	Y

OrderCancelReject (SpiderRock to Client)

SpiderRock FIX Gateways follow FIX 4.4 style rules for CancelReject handling but can switch to FIX 4.2 on request.

Tag	Field Name	Req'd	Type	Comments
	Standard Header	Y		MsgType = 9
37	OrderID	Y	string	Unique ID for order chain assigned by SpiderRock
11	ClOrdID	Y	string	Value from client request
41	OrigClOrdID	Y	string	Conditionally required for response to a Cancel or Cancel/Replace request (ExecType=PendingCancel, Replaced, or Canceled)
434	CxlRejResponseTo	Y	char	Valid values: 1 = OrderCancelRequest <F> 2 = OrderCancel/Replace Request <G>
102	CxlRejReason	N	int	1 = Unknown Order 3 = OrderAlreadyInPendingStatus 99 = Other
39	OrdStatus	Y	char	OrdStatus value after this cancel reject is applied
58	Text	N	string	May be populated with a reject reason. For manual consumption only; the exact strings are prone to change
	Standard Trailer	Y

Symbology Options

We can accept options symbology using either of these formats:

• Tag 55 <Symbol> can be in OSI format
• Use other tags to define each component of the option

If using the components:

• Tag 461 <CFICode> or else Tag 201 + 167 <PutOrCall + SecurityType>
• Tag 55 + 65 <Symbol + SymbolSfx>
• Tag 541 <MaturityDate> or else Tag 200 + 205 <MaturityMonthYear + MaturityDay>
• Tag 202 <StrikePrice>