Specifies a specific source for a SecurityListType <1470>. Relevant when a certain type can be provided from various sources.
- 1 = ICB (Industry Classification Benchmark) published by Dow Jones and FTSE - www.icbenchmark.com
- 2 = NAICS (North American Industry Classification System). Replaced SIC (Standard Industry Classification) or www.naics.com.
- 3 = GICS (Global Industry Classification Standard) published by Standards & Poor
- or any value conforming to the data type Reserved100Plus