Interactive Brokers - incorrect market data feed

[moonmist]

I am told (by one of my clients) that the Rithmic feed is perfect in Aurora (where he has his VPS), so this should be a very good choice for a VPS in Chicago or even NY. I don't know about their historical data.

It is my understanding that most brokers offer Rithmic feed without historical tick data. Optimus Futures is an exception:

( Second post from the bottom)
https://www.sierrachart.com/SupportBoard.php?ThreadID=6881

https://www.sierrachart.com/SupportBoard.php?ThreadID=8026

 

[louisllt]

My api system has been working fine for some time – and recently have started noticing weird market data fed to me by IBS API server – costing me heavily a couple of times. The data doesn't even match with IB TWS time sales data. It's not that there is a delay – just that some snapshots vary wildly from prior data-snaps (and data for a stretch of 3 seconds around event time does not match at all with IB TWS time sales at all – it's off by around 70 pips at times.

Have taken up with IB customer rep explained that IB TWS time sales data server is different from the api market date server – have asked them for a server message log for the last such incident.

As you said the "weird snapshots" is off by around 70 pips at times, so is that weird snapshot is really traded in market or it never traded in the market? have your cross check with some reliable historical tick data source?