I think the list of tickers is around 800 (I am using ibinsync python api, but the general idea is the same).
So, your suggestion is to just use regular market data (ex: reqMktData(conId, contract, 221)) and it should be fine?
I was thinking there should be a more advanced solution like a scanner subscription or something, because in fact I dont need the data itself rather just a notification when price reaches certain level.
