Security Definition Request (MsgType = c, FIXML = SecDefReq)

The Security Definition Request (c) message is used for the following:

1. Request a specific Security to be traded with the second party. The request security can be defined as a multileg security made up of one or more instrument legs.

Subscription for security status can be optionally specified by including the SubscriptionRequestType[263] (263) field on the message.

Tag	Field Name	FIXML	Req'd	Comments
<Standard Message Header>			Y	MsgType = c
320	SecurityReqID	@ReqID	Y
321	SecurityRequestType	@ReqTyp	Y
1301	MarketID	@MktID	N	Identifies the market for which the security definition request is being made.
1300	MarketSegmentID	@MktSegID	N	Identifies the segment of the market for which the security definition request is being made.
<Instrument>			N	Insert here the set of "Instrument" fields defined in "Common Components of Application Messages".of the requested Security
<InstrumentExtension>			N	Insert here the set of "InstrumentExtension" fields defined in "Common Components of Application Messages".
<UndInstrmtGrp>			N	Number of underlyings
15	Currency	@Ccy	N
58	Text	@Txt	N	Comment, instructions, or other identifying information.
354	EncodedTextLen	@EncTxtLen	C	Must be set if EncodedText (355) field is specified and must immediately precede it.
355	EncodedText	@EncTxt	C	Encoded (non-ASCII characters) representation of the Text (58) field in the encoded format specified via the MessageEncoding (347) field.
336	TradingSessionID	@SesID	N	Optional Trading Session Identifier to specify a particular trading session for which you want to obtain a list of securities that are tradeable.
625	TradingSessionSubID	@SesSub	N
<Stipulations>			N
<InstrmtLegGrp>			N	Number of legs that make up the Security
<SpreadOrBenchmarkCurveData>			N
<YieldData>			N
827	ExpirationCycle	@ExpirationCycle	N
263	SubscriptionRequestType	@SubReqTyp	N	Subscribe or unsubscribe for security status to security specified in request.
<Standard Message Trailer>			Y