Indication of Interest (6) messages are used to market merchandise which the broker is buying or selling in either a proprietary or agency capacity. The indications can be time bound with a specific expiration value. Indications are distributed with the understanding that other firms may react to the message first and that the merchandise may no longer be available due to prior trade.
Indication messages can be transmitted in various transaction types; NEW, CANCEL, and REPLACE. All message types other than NEW modify the state of the message identified in IOIRefID (26) .
| Tag | Field Name | Req'd | Comments | ||
|---|---|---|---|---|---|
| <Standard Message Header> | Y | MsgType = 6 |
|||
| 23 | IOIid | Y | |||
| 28 | IOITransType | Y | |||
| 26 | IOIRefID | C | Required for Cancel and Replace IOITransType (28) messages |
||
| 55 | Symbol | Y | |||
| 65 | SymbolSfx | N | |||
| 48 | SecurityID | N | |||
| 22 | IDSource | N | |||
| 106 | Issuer | N | |||
| 107 | SecurityDesc | N | |||
| 54 | Side | Y | Side of Indication. Valid values: 1 = Buy, 2 = Sell |
||
| 27 | IOIShares | Y | |||
| 44 | Price | N | |||
| 15 | Currency | N | Indication without currency field is interpreted as US dollars. |
||
| 62 | ValidUntilTime | N | |||
| 25 | IOIQltyInd | N | |||
| 24 | IOIOthSvc | N | Applicable only if advertised on public IOI service. |
||
| 130 | IOINaturalFlag | N | |||
| 104 | IOIQualifier | N | |||
| 58 | Text | N | |||
| <Standard Message Trailer> | Y | ||||