Mirror trades are not easily identified on stocks with huge volume but 100,000 shares traded at .014, then 100,000 traded at .015. Then 65,000 traded at .014 and 65,000 traded at .015.
Just had another 99,875 trade at .014 and then 99,875 traded at .015.
So the MMs bought the shares at .014 and sold them at .015. They may even have got them from another MM to fill an order.
My broker uses NITE so if I place an order and NITE does not have the shares he has to get them on the open market or from another MM.
They are not actually "mirror" trades because of the difference in the price but the amount of shares traded is the same as well as the time stamp on the trade.
I have sometimes put in an order for a weird amount like 77,777 shares just so I could try to see the trade on Level II.
Hope that helps.
cat
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