IOI (MsgType = 6, FIXML = IOI)

Indication of interest messages are used to market merchandise which the broker is buying or selling in either a proprietary or agency capacity.The indications can be time bound with a specific expiration value.Indications are distributed with the understanding that other firms may react to the message first and that themerchandise may no longer be available due to prior trade.

Indication messages can be transmitted in various transaction types; NEW, CANCEL, and REPLACE.All message types other than NEW modify the state of the message identified in IOIRefID.

Tag	Field Name	FIXML	Req'd	Comments
<Standard Message Header>			Y	MsgType = 6
<ApplicationSequenceControl>			N
23	IOIID	@IOIID	Y	Unique identifier of IOI message. (Prior to FIX 4.1 this field was of type int)
28	IOITransType	@TransTyp	Y	Identifies IOI message transaction type
26	IOIRefID	@RefID	C	Required for Cancel and Replace IOITransType messages
<Instrument>			Y
<InstrumentExtension>			N
<Parties>			N	Insert here the set of "Parties" (firm identification) fields defined in "Common Components of Application Messages".
<FinancingDetails>			N
<UndInstrmtGrp>			N	Number of underlyings
<RelatedInstrumentGrp>			N	The offer FX Swap points for an FX Swap. It is the "far offer forward points - near bid forward points". Value can be negative. Expressed in decimal form. For example, 61.99 points is expressed and sent as 0.006199
54	Side	@Side	Y	Side of Indication Valid subset of values: 1 = Buy 2 = Sell 7 = Undisclosed B = As Defined (for multilegs) C = Opposite (for multilegs)
854	QtyType	@QtyTyp	N	Type of quantity specified in quantity field. ContractMultiplier (tag 231) is required when QtyType = 1 (Contracts). UnitOfMeasure (tag 996) and TimeUnit (tag 997) are required when QtyType = 2 (Units of Measure per Time Unit).
<OrderQtyData>			N
27	IOIQty	@Qty	Y	The value zero is used if NoLegs repeating group is used
15	Currency	@Ccy	N	Identifies currency used for price or quantity fields, depending on the asset class being traded. CurrencyCodeSource(2897) may be used to disambiguate the code source scheme used, and ISO 4217 is the default scheme if absent. Absence of this field is interpreted as the default currency for the security as defined by the respective reference data. It is recommended that systems provide the currency value whenever possible. For securities trading and digital assets traded securities-style, identifies the currency used to denote the price. Absence of this field is interpreted as the default for the security. For Foreign Exchange (FX) and digital assets traded FX-style, identifies the dealt currency used to denominate the quantity related field(s).
2897	CurrencyCodeSource	@CcySrc	N	Identifies class or source of the Currency(15) value.
<Stipulations>			N	Insert here the set of "Stipulations" (symbology) fields defined in "Common Components of Application Messages"
<InstrmtLegIOIGrp>			N	Required for multileg IOIs
423	PriceType	@PxTyp	N	Code to represent the price type.
<PriceQualifierGrp>			N	Used for the calculated quantity of the other side of the currency for this leg. Can be derived from LegQty and LegLastPx.
44	Price	@Px	N	Price per unit of quantity (e.g. per share)
62	ValidUntilTime	@ValidUntilTm	N	Indicates expiration time of indication message (always expressed in UTC (Universal Time Coordinated, also known as "GMT")
25	IOIQltyInd	@QltyInd	N	Relative quality of indication
130	IOINaturalFlag	@NatFlag	N	Indicates that IOI is the result of an existing agency order or a facilitation position resulting from an agency order, not from principal trading or order solicitation activity.
<IOIQualGrp>			N	Required if any IOIQualifiers are specified. Indicates the number of repeating IOIQualifiers.
58	Text	@Txt	N	Free format text string (Note: this field does not have a specified maximum length)
354	EncodedTextLen	@EncTxtLen	C	Must be set if EncodedText field is specified and must immediately precede it.
355	EncodedText	@EncTxt	C	Encoded (non-ASCII characters) representation of the Text field in the encoded format specified via the MessageEncoding field.
60	TransactTime	@TxnTm	N	Timestamp when the business transaction represented by the message occurred.
149	URLLink	@URL	N	A URL (Uniform Resource Locator) link to additional information (i.e. http://www.XYZ.com/research.html)
<RoutingGrp>			N	The start date of the date range on which a complex event is effective. The start date will be set equal to the end date for single day events such as Bermuda options. The start date must always be less than or equal to end date.
<SpreadOrBenchmarkCurveData>			N
<RelativeValueGrp>			N	The end date of the date range on which a complex event is effective. The start date will be set equal to the end date for single day events such as Bermuda options. The end date must always be greater than or equal to start date.
<YieldData>			N
<Standard Message Trailer>			Y