Originally posted by mskl
IB's equity quotes are NOT regularly three seconds behind. Right now, in this quiet market, they are maybe 1/2 second behind which can probably be explained by my internet connection.
What I said was 0 to 3 seconds and I fully agree with you that on this day that a 0 to 1/2 second IB lag would be correct. But on a high volume day, the delay could be as much as 3 seconds or even stuck quotes. But, lets hope IB's new switching and etc has for the most part fixed this problem. We know for sure, no quote feed is going to be the best at all times.
Catoosa