List Strike Price StandardHeader Standard Header Y MsgType = m (lowercase) 66 ListID ListID Y 422 TotNoStrikes TotNoStrikes Y Used to support fragmentation. Sum of NoStrikes across all messages with the same ListID. 428 NoStrikes NoStrikes Y Number of strike price entries 55 Symbol Symbol Y Required if NoStrikes > 0. Must be first field in repeating group. 65 SymbolSfx SymbolSfx N 48 SecurityID SecurityID N 22 IDSource IDSource N 167 SecurityType SecurityType N Must be specified if a Future or Option. If a Future: Symbol, SecurityType, and MaturityMonthYear are required. If an Option: Symbol, SecurityType, MaturityMonthYear, PutOrCall, and StrikePrice are required. 200 MaturityMonthYear MaturityMonthYear N For Options or Futures to specify the month and year of maturity. 205 MaturityDay MaturityDay N For Options or Futures and can be used in conjunction with MaturityMonthYear to specify a particular maturity date. 201 PutOrCall PutOrCall N For Options. 202 StrikePrice StrikePrice N For Options. 206 OptAttribute OptAttribute N For Options. 231 ContractMultiplier ContractMultiplier N For Fixed Income, Convertible Bonds, Derivatives, etc. Note: If used, quantities should be expressed in the "nominal" (e.g. contracts vs. shares) amount. 223 CouponRate CouponRate N For Fixed Income. 207 SecurityExchange SecurityExchange N Can be used to identify the security. 106 Issuer Issuer N 348 EncodedIssuerLen EncodedIssuerLen N Must be set if EncodedIssuer field is specified and must immediately precede it. 349 EncodedIssuer EncodedIssuer N Encoded (non-ASCII characters) representation of the Issuer field in the encoded format specified via the MessageEncoding field. 107 SecurityDesc SecurityDesc N 350 EncodedSecurityDescLen EncodedSecurityDescLen N Must be set if EncodedSecurityDesc field is specified and must immediately precede it. 351 EncodedSecurityDesc EncodedSecurityDesc N Encoded (non-ASCII characters) representation of the SecurityDesc field in the encoded format specified via the MessageEncoding field. 140 PrevClosePx PrevClosePx N Useful for verifying security identification 11 ClOrdID ClOrdID N Can use client order identifier or the symbol and side to uniquely identify the stock in the list. 54 Side Side N 44 Price Price Y 15 Currency Currency N 58 Text Text N 354 EncodedTextLen EncodedTextLen N Must be set if EncodedText field is specified and must immediately precede it. 355 EncodedText EncodedText N Encoded (non-ASCII characters) representation of the Text field in the encoded format specified via the MessageEncoding field. StandardTrailer Standard Trailer Y