Quote from el pollo:
So I guess actual news that is released in the Asian/Middle East markets is purely fiction and does not effect the overnight ES markets? What about S&P 500 co's that release their earnings after 4PM, just a few of those!
ES does not mimick the CASH S&P index my friend.
I sometimes wonder if people post purely for the sake of seeing their name on this board!
The original question in the thread was "what keeps the prices of the ES and the S&P so close to each other?". After several people gave their answer, I then added that outside of regular trading hours there is not an real time S&P Index to use as a benchmark.
Of course, as the OP said the ES and the S&P stay fairly close during most of the regular trading hours. They don't have to, but they usually do. Then, during the off hours it does not have this benchmark (I didn't use the word "mimick", you did.) From the CME website re ES: " All open positions at close of last day of trading are settled in cash to the Special Opening Price on Friday a.m. of the S&P 500 Index." I would think such a fact might make the S&P a benchmark.
Every trader knows that around the clock there are many exchanges, many indexes, and lots of breaking news that will LATER have an impact on our markets.
I wish some knowledgeable person (not you), would weigh in on this specific subject of what are major influences in our our off hours ES market, such as: do the big funds play in it, is it popular overseas, how and when is it manipulated, do many big hedgers use it to take positions, or is it mostly short term speculators? Hope you have a better year in '09? Stosh