I am looking for trading volume by exchange (NSDQ, NYSE, ARCA, directedge, BATS) for a given cash equity. Any suggestion where I may find it? Here is the reason why I am looking for this info. I have IB account. I am mostly a liquidity provider in cash equity. My experience with SMART routing is not very good, I have seen quite a few times they I paid for taking liquidity with SMART, when I should have received the rebate).