Market Makers!!!.Must See Video Link Below...This may explain Trillions Daily Volume Trading Activity DROP....Big Time!! This would also explain the massive volumes that were seen last year with TCF's daily volumes exceeding 30 million shares/day at times and over million of shares on average daily.
Presently it appears that the Market Maker for Trillion is absent here...and may no longer be assigned..The drop in volume in the last month is unusually low for Trillion....Enjoy the video, very informative..