The US is getting a new stock exchange. After months of delays and a lobbying battle that divided Wall Street, the IEX Group won approval Friday from the Securities and Exchange Commission (SEC) to become the nation’s 13th official stock exchange.
IEX is run by the people at the core of the Michael Lewis book, “Flash Boys: A Wall Street Revolt,” which profiles the early efforts of the IEX team to create a trading exchange that may be shielded from high-frequency traders.
Other exchanges and trading firms had urged the SEC to reject the IEX application to become an exchange.
Opponents of IEX, including the other stock exchanges, argued that the structure of the new exchange will add unnecessary new complexities into an already complex stock market, and potentially end up hurting small investors.
But Friday, the 3 SEC Commissioners all voted to approve the IEX exchange, with 1 Commissioner, Michael S. Piwowar, dissenting.
“Today’s actions promote competition and innovation, which our equity markets depend on to continue to deliver robust, efficient service to both retail and institutional investors,” Mary Jo White, the SEC Chairwoman, said in a statement.
The most novel and controversial feature of the IEX exchange is a “speed bump” that would slow down trading slightly to throw off traders that rely only on speed.
The speed bump slows trades down by only 350 microseconds, or millionths of a second, but that is an eternity in a stock exchange universe in which computers can buy and sell stocks in nanoseconds, or billionths of a second.
The NASDAQ and other existing exchanges, have said that the IEX’s speed bump will violate rules mandating that exchanges make their prices available to all parties at the same time.
IEX’s critics have also said that the speed bump could add new complications into a stock market infrastructure that is already criticized for its complexity.
In a statement, the SEC said that the Commissioners “determined that a small delay will not prevent investors from accessing stock prices in a fair and efficient manner.”
The S.E.C. did say, though, that within two years it will do a study to examine whether the delays lead to problems in the markets.
If nothing else, the approval of the exchange will provide an opportunity to test the many competing theories about what impact the IEX’s speed bump will have on the pattern of trading.
The IEX has been a flash point in the broader debate over technological changes that have altered the basic functioning of the American stock markets over the last 20 years.
IEX won support and financial backing from several large mutual fund companies, which said that the exchange would help them trade more cheaply and efficiently, as well as from hundreds of small investors, many of whom read “Flash Boys” and wrote in to the SEC.
Brad Katsuyama, CEO of IEX, said Friday night that the company was “grateful and humbled by the support we have received from the investor community, without it, we may have faced a different result.”
Mr. Katsuyama argued throughout the application process that IEX would provide a market-based solution to the problems created by high-frequency trading rather than requiring the SEC to change the rules governing the markets.
The other exchanges have complained that the IEX was essentially asking to be exempt from rules that governed them.
In a letter written in May, NASDAQ’s lawyers suggested that the SEC could face a lawsuit if it approved the IEX application.
A spokesman for NASDAQ said Friday that it had no comment on the SEC’s decision.
The IEX speed bump could end up benefiting more sophisticated traders, like high-frequency traders, who can find ways to take advantage of the small delays. It hurts the broad middle players who may not have access to the best tools.
Friday, a spokeswoman for Citadel said that the SEC’s decision “will test and potentially reverse the gains in fairness, efficiency and transparency that have been made to our markets over the last decade. We must be vigilant to identify unintended consequences.”
BATS Global Markets, initially supported the IEX application, but earlier this year withdrew its support, pointing to “gross omissions of fact” by IEX. BATS wrote that the problems “call into question the applicant’s professional judgment.”
Friday, a BATS spokesman, Randy Williams, said that the company “congratulates IEX and appreciates the significant changes they made to their application to address industry concerns.”
IEX has already been operating as a private trading pool and has recently been attracting about 1.6% of all daily trading volume.
Have a terrific weekend
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