Kraig Biocraft Laboratories Inc (KBLB)

[es1]

Yes. It keeps the order off the L2 screen. L2 will show 5000 share orders. So if the PPS is .0625 and you want to sell on the next order you can make a 4999 size at .0623 and the order will not raise the bid or lower the ask. It will remain hidden and you will end up with the next trade.
Consider it a way to cut in line.