Hi guys, I usually only trade 2 leg spreads (mostly CL, little big of Ag futs) and have no troubles getting fills. The other day I tried bidding on the Marc Jun Sept CL Fly and left my order out there for days bidding at -0.40. I never got a fill, but I saw the chart go way past me several times. I am confused, can someone explain to me what is going on? Or how to get filled on three legged spreads like this? I am using IB Spread Trader if it's relevant information.