I'm not a Level 2 expert, but I believe that some of what you see on the tape is the market makers communicating to themselves. You see small buys and sell like that all the time that I consider painting the tape at closing.
However, I'll let one of the vets here give you a more solid answer if they so choose. I suggest Lowfloat, Airdale or Jim Charts for this subject...
Ren
"Experience: that most brutal of teachers. But you learn, my God do you learn." C.S. Lewis
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