Quote from Lucrum:
And IB's data, if I'm not mistaken, is a snapshot of sorts. In effect you don't get see every trade, until after a refresh from another source that collects all the ticks, in my case DTN.
I'm on ZenFire, but I have a friend on IB. I wrote a custom indicator that sums up trade volume at the bid and at the ask, and I sent it to him. He was reporting back to me spikes that I did not see at all, so I got him to send me his market replay files, and I compared them to mine for the same time period.
The DOM often had gaps in the levels that I wasn't getting, and the T&S showed many trades going off between the bid and ask, which I know didn't happen. I found out he was also streaming 200 stock quotes, so I told him to get rid of those, and he reported only a slight improvement.
) but what I have trouble deciding is what is likely to happen next?