Support Board
Date/Time: Sat, 21 Mar 2026 20:08:44 +0000
Post From: Position & position from fills - possibility of temporary mismatch?
| [2026-03-21 17:11:38] |
| curious16 - Posts: 40 |
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Thanks for clarifying this. As you indicate, I was posting this question based on the notion that position update messages typically are sent out later than the fill confirmations. In the link you provided it indicates that "If the Quantity field becomes different than Trade Service Position Quantity, then the Quantity field is synchronized to the Trade Service Position Quantity after approximately 10 seconds".
I assume you do that to adjust for incorrect position if, e.g., a fill that was needed to determine the correct fills-implied position was not available. However, what happens if the position update reports keep providing wrong position data? This scenario apparently is possible with the Interactive Brokers service. Does that mean you keep adjusting the fill-implied quantities to the wrong service positions? If that happens, what approach should a user take to mitigate/minimize the problem? Don't tell me to just not use Interactive Brokers. I know about the weaknesses of their software. I hate their cluttered, clumsy TWS Workstation, but due to their wide market and instrument coverage (e.g. equity) they are sometimes the only choice. |