In contrast to other Michael Lewis fare, Flash Boys sounds poorly researched and based of the anecdotal experience of about 3 people.
You'd have to do a _lot_ of buying on other other exchanges to move exhaust the order book to the point that you can make a profit, and there is no way of knowing that the "buy activity" that your "tripwire" detects is, in fact, a harbinger of larger orders on the way to other exchanges. It could just be a single buy order at your tripwire exchange. You have no way of knowing.
Read "Flash Boys: Not so Fast" for a highy detailed rebuttal of Flash Boys. It's written by an HFT trader, so it's not intending to be unbiased, but from a logical perspective it does seem to demolish Lewis's points.
You'd have to do a _lot_ of buying on other other exchanges to move exhaust the order book to the point that you can make a profit, and there is no way of knowing that the "buy activity" that your "tripwire" detects is, in fact, a harbinger of larger orders on the way to other exchanges. It could just be a single buy order at your tripwire exchange. You have no way of knowing.
Read "Flash Boys: Not so Fast" for a highy detailed rebuttal of Flash Boys. It's written by an HFT trader, so it's not intending to be unbiased, but from a logical perspective it does seem to demolish Lewis's points.
http://www.amazon.com/Flash-Boys-Insiders-Perspective-High-F...