As Michael Lewis shows in his new book Flash Boys, the high-frequency trading cancer is deep. It has become systematic and institutionalized, with the exchanges supporting it through practices such as preferential data feeds and developing multiple order types designed to benefit high-frequency traders. These traders have become the exchanges favored clients; today they generate the majority of transactions, which create market data revenue and other fees. Data last year from the Financial Information Forum showed this is no minor blip. High-frequency trading pumped out over 300,000 trade inquiries each second last year, up from just 50,000 only seven years early. Yet actual trade volume on the exchanges has remained relatively flat over that period. It’s an explosion of head-fake ephemeral orders – not to lock in real trades, but to skim pennies off the public markets by the billions. Trade orders from individual investors are now pawns in a bigger chess game.