Probably more of a general market depth question.

It seems on most funds and many shares there is almost always 2 bids and 2 offers for round numbers - usually 5000 or 10000 amongst everything else, Now obviously some one is bidding / offering this, the numbers are always round numbers of shares - not dollars, except on the odd time where you can see a small part of the 10000 have been brought or sold

What exactly are they trying to achieve, what kind of organisation / person is placing these bids? Why almost always 2 buying and 2 selling with round numbers.


Attachment 11442