It should, but when it removed the partially filled order, it also removed the remaining contract for the position total. I was watching it really close since I had the same thing happen yesterday and wasn't sure what had happened. Your trade execution and summary pages though are accurate as far as I know. Those pages appear to get the info from IB and not any other part of TW. If you have the execution page up and a trade executes, it actually shows up a split second sooner on the execution page than on the main page. The summary page should show you what you actually have.