Thank you for the reply. I did do a search and found the info you provided, but I am clearly having a difficult time understanding how trades fail.
To clarify for your question:
One trade was at 3:15 p.m. with TSX buying 20,000 shares, the other at 3:16 p.m. for 10,000 shares. The PS was higher for those trades, I am assuming due to the premium. It seems those selling to TSX are making an easy profit and the volume traded is not effecting the retail PS.
I just don't understand this process and why, again, newbie investor, so thank you for your patience and time.