Quote from velocity_trader:
Eurex does a two second refresh on their data. This is just how they have elected to disseminate their market data. I have been told that this is in an effort to keep a level playing field between the individual trader on a dial up line and the institutions with fiber lines.
Quote from Speedracer:
but eurex does refresh their data every two seconds. Iqfeed then is another second late with their data. I have traded eurex components, primarily with esignal. I will see the prints on my trading software, either xtrader or jtrader, then see the new print on esignal, then a whole second later see it on IQfeed. Iqfeed is nice and cheap, but you give up a good second to more on eurex if you use it.