A little known detail about the TMXMoney website (the investor site for the TSX Group) is that when you type in a ticker symbol into their search bar, the default result is of the TSX feed.
What they never divulge and what we are left to discover ourselves is just how much volume is coming in over other exchanges. Which is what I did.
By trial and error I found some ways of uncovering the volume sources:
If you add :CC to your ticker, you see the consolidated tape which includes 100% of the trading volume
To split that amongst the various exchanges I could find info for, one can add the following suffixes to tickers.
xxx:APH for Alpha
xxx:CHI for Chi-X
no suffix for TSX
Those 3 should normally cover off ~90% of the volume if not more and:
xxx + xxx:APH + xxx:CHI + other?? = xxx:CC
How big a difference does this make? Let's take an egregious example, Bombardier B Shares daily Volume for Jan 21, 2016:
on TSX: 18,940,000 shares
on Alpha: 1,530,000 shares
on Chi-X: 8,630,000 shares
other??: 11,490,000 shares
Consolidated Tape: 40,590,000 shares
Wonder what the suffixes for the rest of the exchanges are??
in any case, I don't think that website can keep using its current tagline: "Invest with Insight" The irony would be funny if it weren't so infuriating.
