You may be on to something. If there is a correlation in the quantity, you may want to keep the prices as well, just in case there is a fixed percentage relationship...
It has been this way a lot of the time. It is much harder to correlate when the volume is higher. It is also much easier to see when the B/A is fairly steady like today.
However, the majority of the time the amount is closely tied to the volume of 5000 (or multiples) share blocks that are bidwacked each day. It isn't always at the same price since a lot of the time it moves the bid down (their goal obviously).
It looks exactly like what you would expect from algo trading where they are trying to wack the bid as much as possible with as few shares as possible. It spread out across the day and always in big 5K multiple chunks. Its looked like that for 6 months whenever there was AH trades.
It is also fairly identical to what you see when someone is algo selling shares for the company (dilution) or a large shareholder. It just depends on who is doing the selling. In this case it isn't likely dilution or it certainly wasn't March through July. I haven't heard any promises lately, but I doubt that is what it is.
There have been many confirmations that these AH trades are common when someone has turned over large amounts of shares to be sold. There is no reason that they couldn't do the same thing with air-shares.
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