Subscribe by Class
Subscribe Instrument Class
This message notifies the server to send market data updates for all instruments of the specified instrument class.
Syntax
SubscribeClassMD <InstrumentClassID>
Example
SubscribeClassMD 2201
Unsubscribe Instrument Class
This message notifies the server to stop sending market data updates for all instruments of the specified instrument class.
Syntax
UnsubscribeClassMD <InstrumentClassID>
Example
UnsubscribeClassMD 2201