I have a question about the 500 stock limit in IQFeed.
I have a subscription for the base of 500 symbols which I've been mostly using to backtest strategies.
I'm working on a strategy that buys near end of day so I have been trying to run an explore around 3pm. I have a total of about 2000 tickers in the database.
I set the explore to "wait for backfill"
What seems to be happening is some tickers (top of the list, top of the alphabet do get filled with todays data (through some point today) but a good number don't get todays data.
I assume it has to do with the 500 ticker limit. They indicate this was "Simultaneous" so I assumed by putting in the "wait for backfill" it was not simultaneous and this would work. I also get no error messages that i'm aware of
Should it be working?
If not, if I break my 2000 into 4 groups of 500 and wait 15 minutes between each group does the 500 reset?
Anyone know how this should be working?
I'll add I called their support and they said the 500 limit is real based on what I was streaming. i said i was not streaming and he came back and said those 500 are "locked" as long as those are flagged on stored on their server. I asked how long the list is stored on their server or how i could reset the list and the answer was until it's released by Amibroker. don't know if that is true or not. After the calls I disconnected and reconnected to iqfeed and that didn't seem to work, but then i logged out of amibroker and logged back in and it did seem to work. So any input would be appreciated.
It was explained many times by IQFeed director that you are not allowed to exceed symbol limits.
Once you access given symbol data it becomes subscribed to real time updates and also historical (missing) data are requested. Only that way you can have both history AND up-to-date current quote.
If you exceed, AmiBroker would unsubscribe oldest symbol(s) and subscribe newest (FIFO) automatically and it works to some extent but if you abuse the service significantly do not expect it to work.
2000 symbols is 4x more than your subscription limit. Consider buying appropriate package from IQFeed. They sell 1300 symbol subscriptions too.
I am surprised that their representative did not tell you that.