I noticed when reviewing Futures data (e.g., VIX futures) that occasionally the transaction posted will be between the bid/ask spread even though I have no option to select anything between them (e.g., VIX futures might be 14.05/14.10 and I see the latest trade posted at 14.07) when entering a trade.
How do I get between the bid/ask spread using IB? Or is that not possible?