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Order book can be useful. Order book data can reveal depth as well as pre-market information. Is this different from "Level 2" data? Yes: Level 2 usually covers Nasdaq-listed stocks only, only shows the best price for each investor, and does not show pre-auction data. Using the Order Book to Gauge Depth Order book data can reveal the depth of ...


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For ease of discussion, I'm going to use the 500 Dow Jones Industrial Average (DJIA) which is a price-weighted index. Each stock has equal weighting and the daily change is determined by adding up the aggregate change of all 30 companies and then dividing by the index divisor which is currently a bit above 0.14 . That means that the index will move about 7 ...


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Worth noting that this question is basically impossible to answer, as stock markets can easily collapse or increase with little/no money actually traded, or have the inverse effect, with huge sums traded for no change in price. The offers available to buy/sell a house that has just started burning down will be radically different than it was before the fire ...


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My broker allows me to set limits on price and size and I have chosen to do so. If I place a BTO or STO order for more than 1,000 shares (long or short) or more than 10 option contracts (long or short), it opens a pop up screen which requires me to click a button that says Override And Send. This does not occur if I'm closing an existing position that is ...


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