Quote from OldTrader:
I'd be somewhat careful about drawing conclusions out of these reports on stock futures.
I think all of you guys/gals know that there is an active arbitrage market between the pit and the ES. What you may not know is that the definition of who is what differ depending on whether you're talking about the pit or the ES.
Therefore, you're not looking at the same definitions. Yet the same folks may carry positions in each contract, may just not be classified the same.
So the point is there is in all likelihood some distortion in what you read. The pit version has been around for a while, and should normally be considered the most accurate. EXCEPT that some of these folks are laying positions off in the ES, creating a distortion. And you can't just add the positions together even after adjusting them for size, because the classifications of commercials, etc are not the same.
Someone will ultimately figure it all out as to how to combine them. But using them uncombined is crazy considering the volume in the ES. Looks like an opportunity for an indicator inventor if he can figure out how to combine all the numbers.
Until then...be careful.
OldTrader