The Security Definition message is used for the following:
1. Accept the security defined in a Security Definition message.
2. Accept the security defined in a Security Definition message with changes to the definition and/or identity of the security.
3. Reject the security requested in a Security Definition message
Added in protocol FIX.4.2
See in: FIX.4.2, FIX.4.3, FIX.5.0, FIX.5.0SP1, FIX.5.0SP2, FIX.5.0SP2 EP240.
| Field or Component | Name | Description | Is Required | Added | Is Deprecated |
|---|---|---|---|---|---|
| Block | StandardHeader | MsgType = d (lowercase) | Y | FIX.4.2 | |
| 320 | SecurityReqID | Y | FIX.4.2 | ||
| 322 | SecurityResponseID | Identifier for the Security Definition message | Y | FIX.4.2 | |
| 323 | SecurityResponseType | Response to the Security Definition Request | Y | FIX.4.2 | |
| Block | Instrument | Insert here the set of "Instrument" (symbology) fields defined in "Common Components of Application Messages" of the requested Security |
FIX.4.3 | ||
| Block | InstrumentExtension | Insert here the set of "InstrumentExtension" fields defined in "Common Components of Application Messages" | FIX.4.4 | ||
| ImplicitBlockRepeating | UndInstrmtGrp | Number of underlyings | FIX.4.4 | ||
| 15 | Currency | FIX.4.2 | |||
| 336 | TradingSessionID | FIX.4.2 | |||
| 625 | TradingSessionSubID | FIX.4.3 | |||
| 58 | Text | Comment, instructions, or other identifying information. | FIX.4.2 | ||
| 354 | EncodedTextLen | Must be set if EncodedText (355) field is specified and must immediately precede it. | FIX.4.2 | ||
| 355 | EncodedText | Encoded (non-ASCII characters) representation of the Text (58) field in the encoded format specified via the MessageEncoding (347) field. | FIX.4.2 | ||
| ImplicitBlockRepeating | InstrmtLegGrp | Number of legs that make up the Security | FIX.4.4 | ||
| 827 | ExpirationCycle | FIX.4.4 | |||
| 561 | RoundLot | FIX.4.3 | |||
| 562 | MinTradeVol | FIX.4.3 | |||
| Block | StandardTrailer | Y | FIX.4.2 |