Flash Boys

by Michael Lewis

“When something becomes obvious to you,” he said, “you immediately think surely someone else is doing this.”

“That was the invisible tax,” said Rob Park. It sounded small until you realized that the average daily volume in the U.S. stock market was $225 billion. The same tax rate applied to that sum came to more than $160 million a day. “It was so insidious because you couldn’t see it,” said Brad. “It happens on such a granular level that even if you tried to line it up and figure it out you wouldn’t be able to do it. People are getting screwed because they can’t imagine a microsecond.”

He should have seen it before, simply from Schwall’s chosen role on Wall Street: product manager. A product manager, to be any good, had to be obsessive.

Every systemic market injustice arose from some loophole in a regulation created to correct some prior injustice.

In buying from every seller and selling to every buyer, it winds up: a) doubling the trades in the marketplace and b) being exactly 50 percent of that booming volume. It adds nothing to the market but at the same time might be mistaken for the central player in that market.

He’d been surprised to find that in at least one way he fit in: More than half the programmers at Goldman were Russians. Russians had a reputation for being the best programmers on Wall Street, and Serge thought he knew why: They had been forced to learn to program computers without the luxury of endless computer time. Many years later, when he had plenty of computer time, Serge still wrote out new programs on paper before typing them into the machine. “In Russia, time on the computer was measured in minutes,” he said. “When you write a program, you are given a tiny time slot to make it work. Consequently we learned to write the code in ways that minimized the amount of debugging. And so you had to think about it a lot before you committed it to paper. … The ready availability of computer time creates this mode of working where you just have an idea and type it and maybe erase it ten times. Good Russian programmers, they tend to have had that one experience at some time in the past—the experience of limited access to computer time.”

The markets were now run by technology, but the technologists were still treated like tools. Nobody bothered to explain the business to them, but they were forced to adapt to its demands and exposed to its failures—which was, perhaps, why there had been so many more conspicuous failures.

“It’s an entire industry that overglorifies data, because data is so easy to game, and the true data is so hard to obtain,”

It was astonishing, when you stopped to think about it, how aggressively capitalism protected its financial middleman, even when he was totally unnecessary. Almost magically, the banks had generated the need for financial intermediation—to compensate for their own unwillingness to do the job honestly.

“I hate them a lot less than before we started,” said Brad. “This is not their fault. I think most of them have just rationalized that the market is creating the inefficiencies and they are just capitalizing on them. Really, it’s brilliant what they have done within the bounds of the regulation. They are much less of a villain than I thought. The system has let down the investor.”

That some minority on Wall Street is getting rich by exploiting a screwed-up financial system is no longer news. That is the story of the last financial crisis, and probably the next one, too. What comes as news is that there is now a minority on Wall Street trying to fix the system.