SecurityRequestType <321> field – FIX 4.4 – FIX Dictionary
Type of Security Definition Request <c>.
0 = Request Security identity and specifications
1 = Request Security identity for the specifications provided (Name of the security is not supplied)
2 = Request List Security Types
3 = Request List Securities (Can be qualified with Symbol <55>, SecurityType <167>, TradingSessionID <336>, SecurityExchange <207>. If provided then only list Securities for the specific type)