Gentlemen Mbtrading offer e-mini today and OXPS would offer ... questions 1. one of the best Depth of the market for futures www.tradingtechnologies.com Demo Mdtrader Can suspect that with patented DOME operator can not see he's order ,but only cumulative order from all operaotrs of one CME member . Operator on stock and options market can see one SPY with level 2/or ARCA/ and control front running and delay Tape reading tactic possible with DATEK streamer last sales but not with MD trader . correct ? If yes stock and options technology have advantage against future technology 2. Parkinson Hi-Lo intraday volatility was at 07/22/2005 a. For SPY 122.63-123.56 possible margin 4 possible theretical win approx 3.16 % on low basys b.ESU5 123800 -122725 on margin 500$ - approx 107.5 % on margin 300$ -approx 179.16% c. for +SPYHS - 1.25-1.7 approx 36 % clear can buy not SPY ,but heavy SPY component XOM 58.15-59.70 approx 10.66% +xomhl 0.55-1.1 100% But at 07/22/2005 ESU5 have had more win . /nd more liquidity/ Some comment about role of future /and future technolgy/ by stock and options speculation welcome ... Your respectfully