Quote: Does this mean I can make 50 new historical requests per second, even if the previous ones have not finished?
Quote: do existing historical requests count in this 50 count as well?
No. The historical request limits formerly worked this way, but don't anymore. It's just 50 per second, period. It doesn't matter how many are still running.
I should clarify that the 50 per second limit is per login ID. Making multiple connections with the same login ID doesn't let each connection make 50 requests per second. It is 50 total across all connections, unless you have multiple login IDs.
DTN IQFeed Implementation Support Specialist