DRCAL, is this just a theory? I noticed today's ending buy was 200 shares.
If you see buys of:
100 > I need shares 200 > I need shares badly but dont take it down to get em 300 > Take the price down to get shares.... 400 > Trade it sideways based on Supply and Demand 500 > Gap one way or the other, usually to the direction of the 500 trade. Sometimes -if in the middle -keep the price right where it is 911 > News incoming