No problem with the iHUB platform as it only conveys whatever the MM System and Level II will allow outsiders to the system, such as iHUB, to show.
The MM System, well, it is what it is. Just be aware. Level II hides a whole lot of shares waiting in the background that will suddenly appear and then, just as suddenly, disappear in the blink of an eye. There is a lot of cat and mouse games going on.
Market Data 
Markets 
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