I understand the whole bid ask thing referred to as buy or sell and the fact that every trade has a buyer and seller. But are you saying Ihub is also just guessing at the need to use the notations "ave' and "cash" on some large blocks? It would seem they would be overstepping somewhat in that regard unless they're getting the info from a reliable source.
I've also posed this question to FINRA and am waiting for an answer.
News 
Market Data 
Discover 
