increase their order flow but you know the point about the you know the main point about this day sarah burton is that what the c.m. is not mentioning and what people tend to forget is that on an exchange at the new york stock exchange seventy percent of the volume is computers trading with computers and they do this you know people think that prices are the result of supply and demand and the a lot of people want something so the price goes up and it happens as the result. at the tail end of the transaction you end up with a price based on the buyers and the sellers but that's not true any more you have traders on wall street like a goldman or j.p. morgan first to figure out the price they want ahead of time they create the algorithm they release the algorithm on to the floor of the exchanges and then the algorithms take prices to the pre-determined levels that were set ahead of time ahead of the trade and to do this you need overwhelming computer power as a says seventy percent of the trades are done by computers to create prices that are pre-determined and that of course is the very definit