UPDATE 2-U.S. regulators weigh fixes after trading debacles

Tue Feb 19, 2013 4:31pm EST

(Adds other SEC efforts on trading data disclosure)

By Sarah N. Lynch

WASHINGTON Feb 19 (Reuters) - Exchanges and other trading platforms would have to perform tests to prevent software errors from unleashing havoc on the market under proposed rules being crafted by regulators, U.S. Securities and Exchange Commission Chairman Elisse Walter said.

Walter offered details for the first time on the rules, which are being developed in response to a string of high-profile technology errors last year, in a speech Tuesday at American University's Washington College of Law.

Those debacles include Nasdaq's botched handling of the Facebook initial public offering and Knight Capital's $440 million losses due to a software error.

Walter's predecessor, Mary Schapiro, announced last year she was putting the rule-writing process on the fast track, shortly after Knight Capital nearly went bankrupt.

Walter said the rules will require exchanges, alternative trading systems and clearing agencies to provide notifications about systems disruptions and meet certain technological standards, as well as perform business continuity testing.

Entities could be punished if they fail to comply with any such tighter compliance rules.

"We saw how automated markets and computer-driven trading can go awry when technical issues in Knight Capital's trading and routing software caused it to erroneously establish positions in nearly 150 stocks, ultimately costing the company $440 million," Walter said.

The regulator will try to eliminate the causes of uncontrolled electronic trading, not just the problems, by concentrating on compliance and integrity, she said.

The SEC's proposed rules would replace a long-time voluntary standard known as "automation review policies" or ARP.

The SEC first developed ARP following the 1987 market crash. ARP sets forth guidance for exchanges, some alternative trading systems and clearing agencies to help ensure their systems are stable, secure and have the capacity to deal with glitches that can send markets into a tailspin.

In addition to converting the voluntary guidance into enforcement rules, the SEC is also considering whether to expand the program to apply to other entities, such as broker-dealers, advisers and dark pools. [ID nL1E8KE0YV]

Walter conceded that many market participants are already following ARP guidelines today, but said a voluntary policy does not go far enough.

"In my mind, a voluntary standard is no substitute for a mandate or a requirement that you must follow, and that you violate the law if you fail to follow it," she said.

Walter did not provide a timetable for the proposal's unveiling, saying some details remained under discussion. She later told reporters it is "top of mind and top of the agenda" and would be released "sooner rather than later."

It is unclear, however, if Mary Jo White, President Barack Obama's nominee to become the next SEC chairman, will also prioritize the rulemaking. Walter is expected to remain as chairman until the Senate confirms White, a former prosecutor and white-collar defense attorney.

RISE OF THE MACHINES

The SEC has been exploring numerous possible market structure changes in response to the rise of automated trading.

It implemented a handful of reforms after the May 6, 2010 "flash crash," when the Dow Jones industrial average plunged about 700 points before rebounding.

The SEC is also exploring the policies surrounding high-frequency trading and its impact on investors.

The commission is capturing data for all orders, cancellations and trade executions through a Market Information Data Analytics System, or MIDAS, in an effort to better understand high-frequency trading, she said.

After the staff gets a chance to analyze it, Walter said the SEC will release some of its studies to the public.

Among the things she said staff may study include the impact of quote cancellations, changing the tick size, the depth of book for liquid and illiquid stocks, and intraday volatility. (Reporting By Emily Stephenson and Sarah N. Lynch; Editing by Gerald E. McCormick, Nick Zieminski and Leslie Gevirtz)

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