So I was looking at making another addition to my SRT...

So I was looking at making another addition to my SRT collection, was thinking .017 a good entry. But, then I noticed the sell side grows with each buy.
I missed the depth before open, could somebody let me know..... where the .017's on the sell side and got bought up or was it the opposite and they were on the buy queue and sold into? Not that it matters, I just want to get the feel of the open in my head...

Tx in advance