I think Turr that the one most likely reason for the drop would be Pinetree selling slowing to fill there next buy back commitment that they have been doing off and on over the last 3 to 4 months.
Most of the time its usually house 1,33 and 80 that have been dumping into the bid, which I believe Pinetree uses.
Hopefully they have their next quota accounted for and we can resume our climb back up. (aimo)