@JR
Thank you for reply. I have been so far very happy with IB tickByTick data to construct bars, but i read on that page, that there is limit of 60 tickers no matter what. I could probably be fine with 60 tickers, but to get to those 60 tickers on free data, it essentially means you need either $60 000 000 in equity or pay $48 000 in commissions. Well, i think i will go with polygon, at least for now :)
