agm options., page-39

Thanks Ewob. I'm pretty sure it's a Mr.X scenario.
A wealthy individual could have done it or several combined but the algorithm based buying and selling is highly indicative of big money/smart money. As was the small size of many of the transactions. Us mere mortals are usually required to trade in a $250 or more parcel, the algo was often doing just a few dollars. They were also paired up by time often. eg two orders placed simultaneously and if first filled the second pulled. Also, if you took out a line they would hit back in a micro second. Others have commented they had the same experience as well. Games inside games.

Maybe we should all be taking it as a compliment, they want to be long AVB :)