Quote from bearcats1980:
I see your point, I guess I just dont see the market the same way. I think a given market moves one way or another due to what "paper" is doing. These days, "paper" is for the most part large speculative accounts ie Goldman, etc. This is where at least half of the volume comes from, and the other half imo is locals and the HFT algos (essentially more technologically advanced locals).
I'm not saying my perspective is necessarily correct, but this is the way I interpret it. If i'm interpreting your posts correctly, you are saying that of the 100k Z4 Eurodollar futures contracts that traded from 9865.0 to 9872.5 in todays session, the majority of those contracts were HFT firms such as Getco and RSJ "exploting" locals and dominating other speculators.
Whereas my opinion is that half the volume was large speculators and paper adjusting positions and hedging options in anticipation of the 5yr note auction, and then in reaction to the results of that auction, combined with a fairly significant bond level that was traded around. The other half was locals like me either trading in the same manner or filling paper for small edge on big size.
How many non-automated locals do you think traded at least 500 GEZ4 contracts today? I'd say upwards of 100. That's 50k contracts. Now how many different automated parties (HFT) traded at least 500 GEZ4? At least 40? theres another 20k contracts and its very likely that the remaining 30k was large speculative (paper) orders initiating, exiting, or adjusting longer term positions.
I guess I'm just having a hard time seeing how these bullying HFT algos you speak of are accounting for so much volume.