Lee Schafer: High-speed traders are symptom of Wall Street's ills

  • Article by: LEE SCHAFER , Star Tribune
  • Updated: April 11, 2014 - 10:56 AM

Michael Lewis, author of "Flash Boys," during a Bloomberg Television interview last week.

Photo: Chris Goodney, Bloomberg

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The new book by bestselling author Michael Lewis, “Flash Boys: A Wall Street Revolt,” has provoked a debate over high-frequency stock traders that seems to have missed his more fundamental observation about Wall Street.

It’s not just that the high-frequency traders are probably bad guys. What’s really striking in Lewis’ newest book is once again the almost complete absence on Wall Street of any good guys.

Lewis did find one, Brad Katsu­yama, to help tell his story. Katsuyama was a stock trader at the Royal Bank of Canada in New York when he figured out that he was being cheated.

Somebody out there in the stock market somehow knew Katsuyama’s intention to buy shares before he could even finish placing his order. He just couldn’t figure out who or what was doing it to him, or how.

As told by Lewis, the author who gave us the Wall Street books “Liar’s Poker” and “The Big Short,” Katsu­yama was unwilling to simply put up with the problem. He assembled a small team including an Irish telecom expert and dug into it.

The guys making money off the Royal Bank of Canada trader’s intentions turned out to be high-frequency traders. It’s a form of stock trading that seeks to capture trading profits from small discrepancies in share prices that have happened so quickly that time even in microseconds turns out to be important.

The problems Katsuyama found included front-running, an age-old problem in financial markets in which a broker trades for his own account on the knowledge of pending orders. Katsuyama’s buy order within milliseconds got to other exchanges and the offer of shares at a given price had by then already evaporated, with the share price now higher.

The high-frequency traders had managed to jump between Katsuyama and the stock he wanted to buy. They were perfectly willing to sell him the stock that they had owned for less time than a tick of the clock, but at the new, higher price.

Team Katsuyama then turned to coming up with a solution, and ultimately settled on a new, much fairer, electronic stock exchange. It was a remarkably simple fix to eliminate the HFT shops’ speed edge, simply by putting the exchange 38 miles away from the point where any brokers connected to it. To do that, they coiled miles of fiber-optic cable in a drawer and ran the orders through that cable.

In telling this story, Lewis had reached the conclusion that the stock market itself was “rigged.”

That kicked up a furor upon publication of the book last week. The high-frequency traders shot back that they provide much-needed liquidity to the markets through their buying and selling.

One of the firms had actually named itself Virtu Financial and yes, it’s apparently pronounced “Virtue.”

Another criticism of Lewis is that even if the high-frequency traders are picking off a fraction of a penny, they are getting those pennies from big hedge funds and not 100-share traders clicking the mouse on E-Trade.

So why the whining? There have always been intermediaries standing between people who want to buy and people who want to sell, taking their cut. There was a time when traders at the most respected firms took 50 cents per share out of a Nasdaq stock trade, and it was both legal and accepted by investors.

To suggest that the corruption going on now is really pretty minor, however, isn’t that persuasive. The pennies do add up.

Where are the regulators? Asleep again, according to Lewis.

The big Wall Street firms? Most are in on it, sending their own clients’ orders into their private exchanges — called “dark pools” — where high-frequency traders are also welcome. The big firms also routinely ignored client instructions to fill orders on the new exchange Katsuyama had cofounded.

In “Flash Boys,” even the stock exchanges are in on the action, from the New York Stock Exchange on down. They created a dizzying array of order types that were really not securities orders at all and let high-frequency trading firms set up computers right next to their own to provide them a slight time edge.

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