Arab Today, arab today highfrequency stock trade risky unfair
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Arab Today, arab today
Arab Today, arab today

High-frequency stock trade risky, unfair

Arab Today, arab today

Arab Today, arab today High-frequency stock trade risky, unfair

Washington - AFP

The increasing power of computerized high-frequency trades on US markets has been assailed in Congress as dangerous and unfair, as pressure builds to reel in the powerful industry. Brokers and industry experts told a congressional panel Thursday that the flash crash of May 6, 2010, the computer glitch that sabotaged Facebook's IPO last May, and the Knight Capital software problem that dealt the company a $440 million loss in August, were all examples of the potential for disaster from ultra high-speed, high-frequency trading (HFY). "US equity markets are in dire straits. We are truly in a crisis," said David Lauer, a former trader and currently a consultant on markets and high frequency trading at Better Markets Inc. "While complex systems can often provide elegant solutions to intractable real-world problems, they can also spin out of control in unexpected ways," he told the Senate Committee on Banking. High-frequency trading now accounts for 50-70 percent of the volume on markets each day. It has turned most share purchases into acts lasting a second or less, rather than investments that can span days, months and years. But it simultaneously works in "dark pool" trading operations away from regulated markets, with computers able to work at hyper-speed to exploit price anomalies and take advantage of buyers and sellers trading in traditional ways.Lauer cited the flash crash of May 2010, when in just minutes the market plunged, losing $1 trillion in value, then just as quickly recovered. In the interim, though, he said, all liquidity in the market "simply disappeared" as computerized traders pulled out. "Nobody had ever seen anything like it... When more than half of the liquidity in the stock market is able to be pulled from it in a matter of seconds, dramatically worsening an unstable situation, something is dreadfully wrong." Lauer said the problem is far more common than the most publicized incidents suggest. "'Mini flash crashes' occur on a near-daily basis in individual stocks," he said. The effect is that traditional retail investors have pulled out, frightened by the volatility brought by HFT and the perception of unfair pricing. "The flight of the retail investor during a period of incredible stock market returns is a sure sign that this exodus is a result of mistrust rather than economic conditions." Andrew Brooks of brokerage T. Rowe Price told senators "the almost myopic quest for speed has threatened the very market itself." "There is a growing distrust of the casino-like environment that the marketplace has developed over the past decade. We worry that the erosion of investor confidence can undermine our capital markets, which are so important to the economy." He said the existence of 13 different exchanges and over 50 dark pools that large traders can use, and obtain faster information on prices than others, "has produced a market that values speed over fair access." "In no other regulated industry is one party allowed a head start in exchange for payment." Larry Tabb, chief executive of market consultant the Tabb group, said its poll of market professionals shows that the flash crash and Knight problem have driven confidence in the markets sharply lower. But he cautioned against over-regulating. "I am not sure that there is a direct correlation between this drop in confidence and the long-term trend of decreasing equity ownership," he told the Senate panel.  "We need to be careful not to over-regulate our markets. The unintended consequences may be tremendous. That said, liability and responsibility are important to the marketplace and should not be vacated."

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