VERT is the dilutor , VERT is the lquidator specialist , Its not an easy task to liquidate many millions of shares without taking the PPS fast to .0001 , so companies use VERT to do the dirty job ( Dilutor hitman!) many times VERT waits a 10% up tic , then flushes large blocks of shares and so on ..they may want to liquidate 100 mil shares lets say in 5 days , they know if they do it fast , they kill the PPS right away , so they do it in a briliant way , its mix of science and Psychology ,if needed they put out some bones to create fake run ..VERT is the specialist in liquidation. sometimes DOM is the hitman ! NITE on the other hand is one who buffers the BID/ASK based on level 3 ( Level 3 only seen by market makers ) .GLTY