I don't think I was taking liquidity, because I placed my order at mid of Bid and Ask and it took minutes for the order to fill.
I'm on IB's tiered commission structure, but the per-contract commission is no where close to $0.65. Often times, I got charged almost twice of that:
View attachment 270089
I'm curious if people are paying similar commissions? Or is there something I can tweak to reduce them?