Hello we are using RFA 8.1 C++ api's to consume market data.
When I subscribe to "AA" I get "FID[4] [IDN EXCHANGE ID] as NYQ"
When I subscribe to "AA.N" I get "FID[4] [IDN EXCHANGE ID] as NYS"
May I know what is the difference between NYS and NYQ?
What exchange "NYQ" represents?