| 2123 | 1683 | 1 | 1.11 | 0 | |
| 30 | 1683 | 0 | 1.2201 | 0 | |
| 30 | 1301 | 0 | 2.2 | 0 | |
| 30 | 1300 | 0 | 2.3 | 0 | |
| 30 | 1682 | 0 | 10.1 | 0 | |
| 30 | 1684 | 0 | 10.2 | 0 | |
| 31 | 1683 | 0 | 1.21 | 0 | |
| 31 | 1301 | 0 | 2.1 | 0 | |
| 31 | 1300 | 0 | 2.2 | 0 | |
| 125 | StandardHeader | 0 | 1 | 1 | MsgType = CN |
| 125 | 324 | 0 | 2 | 1 | Must be unique, or the ID of previous Security Mass Status Request to disable if SubscriptionRequestType = Disable previous Snapshot + Updates Request (2). |
| 125 | InstrumentScope | 0 | 3 | 0 | |
| 125 | 263 | 0 | 4 | 1 | SubcriptionRequestType indicates to the other party what type of response is expected. A snapshot request only asks for current information. A subscribe request asks for updates as the status changes. Unsubscribe will cancel any future update messages from the counter party. |
| 125 | 1465 | 0 | 5 | 0 | |
| 125 | 1301 | 0 | 6 | 0 | |
| 125 | 1300 | 0 | 7 | 0 | |
| 125 | 336 | 0 | 8 | 0 | |
| 125 | 625 | 0 | 9 | 0 | |
| 125 | StandardTrailer | 0 | 10 | 1 | |
| 126 | StandardHeader | 0 | 1 | 1 | MsgType = CO |
| 126 | ApplicationSequenceControl | 0 | 2 | 0 | |
| 126 | 324 | 0 | 3 | 0 | Required when mass status is in response to a Security Mass Status Request message. |
| 126 | 1465 | 0 | 4 | 0 | Identifies all securities for a security list identifier. |
| 126 | 1301 | 0 | 5 | 0 | Identifies all securities for a market. |
| 126 | 1300 | 0 | 6 | 0 | Identifies all securities for a market segment. |
| 126 | 336 | 0 | 7 | 0 | Identifies all securities for a trading session. |
| 126 | 625 | 0 | 8 | 0 | Identifies all securities for a trading sub-session. |
| 126 | InstrumentScope | 0 | 9 | 0 | |
| 126 | 325 | 0 | 10 | 0 | Set to "Y" if message is sent as a result of a subscription request not a snapshot request. |
| 126 | 1679 | 0 | 11 | 0 | |
| 126 | 1680 | 0 | 12 | 0 | |
| 126 | 1681 | 0 | 13 | 0 | |
| 126 | 1021 | 0 | 14 | 0 | Used to relay changes in the book type. |
| 126 | 264 | 0 | 15 | 0 | Used to relay changes in Market Depth. |
| 126 | 60 | 0 | 16 | 0 | Time of state change for security list. |
| 126 | 334 | 0 | 17 | 0 | |
| 126 | SecMassStatGrp | 0 | 18 | 0 | |
| 126 | StandardTrailer | 0 | 19 | 1 | |
| 2186 | 146 | 0 | 1 | 0 | Number of exceptions with a trading status different from SecurityMassTradingStatus (1679). |
| 2186 | Instrument | 1 | 2 | 0 | Insert here the set of "Instrument" (symbology) fields defined in "Common Components of Application Messages". Conditionally required if NoRelatedSym > 0. |
| 2186 | InstrumentExtension | 1 | 3 | 0 | Insert here the set of "InstrumentExtension" fields defined in "Common Components of Application Messages". |
| 2186 | UndInstrmtGrp | 1 | 4 | 0 | |
| 2186 | InstrmtLegGrp | 1 | 5 | 0 | |
| 2186 | 326 | 1 | 6 | 0 | Conditionally required if NoRelatedSym > 0. |
| 2186 | 1174 | 1 | 7 | 0 | |
| 2186 | 327 | 1 | 8 | 0 | |
| 2186 | 291 | 1 | 9 | 0 | |
| 2186 | 292 | 1 | 10 | 0 | |
| 2186 | 58 | 1 | 11 | 0 | Comment, instructions, or other identifying information. |
| 2186 | 354 | 1 | 12 | 0 | Must be set if EncodedText field is specified and must immediately precede it. |
| 2186 | 355 | 1 | 13 | 0 | Encoded (non-ASCII characters) representation of the Text field in the encoded format specified via the MessageEncoding field. |