I just don't know but watching it seems that smaller parcels are...

I just don't know but watching it seems that smaller parcels are being dumped into the buy side keeping the price down whilst larger parcels are being bought from the sell side when there is enough on the table.
Just a snippet:
11:02 130,609 70.5 35,000
11:01 129,932 70.5 40,000
11:00 128,685 70 1,662
11:00 128,684 70 1,244
11:00 128,683 70 1,244
11:00 127,765 70.5 13,264
11:00 127,764 70.5 2,850
11:00 127,763 70.5 8,886
10:57 122,003 70.5 1,114
10:57 121,951 70.5 6,876
10:57 121,928 70.5 10,000
10:56 120,259 70.5 6,502
10:56 120,258 70.5 1,518
10:56 120,256 70.5 326
10:56 120,254 70.5 18,664
10:55 120,000 70.5 1,336
10:55 119,694 70.5 6,176
10:55 119,693 70.5 37,824
10:55 119,692 70.5 24,729
10:55 119,691 70.5 223
10:55 119,690 70.5 111
10:55 119,689 70.5 1,170
10:55 119,688 70.5 1,359
10:55 119,687 70.5 2,464
10:55 119,686 70.5 1,998