I think the 3,000,000 buy was a fake between MM 

I think the 3,000,000 buy was a fake between MM and actually the amount bought/filled was what you originally saw 100,250. The original ask was 3,900,000, 3m took that out. Then the ask was 2,900,000. Then @ 13:49:15 1m sold and the ask reduced to 1,300,900 currently by ETRF. I bet the short report at days end, will reflect actual numbers and it will likely represent 100% of the days volume.