Type of Security Definition Request.
| 0 | = | Request Security identity and specifications | Added FIX.4.2
| | [RequestSecurityIdentityAndSpecifications] |
| 1 | = | Request Security identity for the specifications provided (name of the security is not supplied) | Added FIX.4.2
| | [RequestSecurityIdentityForSpecifications] |
| 2 | = | Request List Security Types | Added FIX.4.2
Deprecated FIX.5.0SP1 | | [RequestListSecurityTypes] |
| 3 | = | Request List Securities (can be qualified with Symbol, SecurityType, TradingSessionID, SecurityExchange. If provided then only list Securities for the specific type.) | Added FIX.4.2
Deprecated FIX.5.0SP1 | | [RequestListSecurities] |
| 4 | = | Symbol | Added EP52
| | [Symbol] |
| 5 | = | SecurityType and or CFICode | Added EP52
| | [SecurityTypeAndOrCFICode] |
| 6 | = | Product | Added EP52
| | [Product] |
| 7 | = | TradingSessionID | Added EP52
| | [TradingSessionID] |
| 8 | = | All Securities | Added EP52
| | [AllSecurities] |
| 9 | = | MarketID or MarketID + MarketSegmentID | Added EP52
| | [MarketIDOrMarketID] |