---
title: Derivative Security List <AA> message – FIX 4.3 – FIX Dictionary – Onix Solutions
description: Derivative Security List <AA> message – FIX 4.3 – FIX Dictionary – Onix Solutions
---

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# Derivative Security List <AA> message – FIX 4.3 – FIX Dictionary

| Messages by MsgType \| Messages by Name \| Fields by Tag \| Fields by Name \| FIX 4.3 \| Home FIX 4.3 : Derivative Security List <AA> message Structure \| Related Messages Description The Derivative Security List <AA> message is used to return a list of securities that matches the criteria specified in a Derivative Security List Request <z>. Structure Tag Field Name Req'd Comments <MessageHeader> Y MsgType <35> = AA 320 SecurityReqID Y 322 SecurityResponseID Y Identifier for the Derivative Security List <AA> message 560 SecurityRequestResult Y Result of the Security Request identified by SecurityReqID <320> Component Block - <UnderlyingInstrument> N Underlying security for which derivatives are being returned 393 TotalNumSecurities N Used to indicate if the total number of securities being returned for this request. Used in the event that message fragmentation is required. 146 NoRelatedSym N Specifies the number of repeating symbols (instruments) specified => Component Block - <Instrument> N Insert here the set of "<Instrument>" (symbology) fields of the requested Security => 15 Currency N => 555 NoLegs N Number of legs that make up the Security => => Component Block - <InstrumentLeg> N Insert here the set of "<InstrumentLeg>" (leg symbology) fields Required if NoLegs <555> > 0 => => 556 LegCurrency N => 336 TradingSessionID N => 625 TradingSessionSubID N => 58 Text N Comment, instructions, or other identifying information. => 354 EncodedTextLen N Must be set if EncodedText <355> field is specified and must immediately precede it. => 355 EncodedText N Encoded (non-ASCII characters) representation of the Text <58> field in the encoded format specified via the MessageEncoding <347> field. <MessageTrailer> Y   Related Messages Business Message Reject <j> Derivative Security List Request <z> |
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