NYSE Arca, a unit of NYSE Euronext (NYX), has filed with the Securities and Exchange Commission to introduce a new price collar designed to safeguard the execution of market orders. The new price collar will be introduced on July 15, 2010 and is the latest in a series of steps implemented to improve market practices and structure since the "flash crash" of May 6, 2010.
"The market-order collar is an additional protection that complements those already in place and addresses a specific issue highlighted by the flash crash -- market orders that were executed at anomalous prices in electronic markets. The new collar is designed to help limit potential harm from extreme market volatility by preventing trades from occurring a specified percentage away from the last trade price," said Joseph Mecane, Executive Vice President and Co-Head of U.S. Listings and Cash Execution. "We will continue working closely with the SEC, other markets and market participants toward the goals of further strengthening the markets' safety net and rebuilding investor confidence in our national market system."
The new collar will prevent market orders to buy stock from executing or routing to another trading venue at a price above the collar. Conversely, market orders to sell will not execute or route at a price below the trading collar. The collar for issues priced $25 or less will be 10 percent above or below the last trade price; for issues priced above $25 up to and including $50, the collar will be 5 percent; and for issues above $50, the collar will be 3 percent. These limits also will help prevent erroneous trades from inadvertently triggering the individual-stock circuit breakers introduced last month, and are consistent with those in the newly implemented rules concerning the cancellation of erroneous trades.
Additional details of the new measure, including trading examples, are in the NYSE Arca rule filed with the SEC, linked here: http://apps.nyse.com/commdata/pub19b4.nsf/docs/F9706A0475E6BEAF85257760005AC153/$FILE/NYSEArca-2010-67.pdf
In just over two months since May 6, the following corrective measures have been implemented by the markets in concert with the SEC:
• A pilot program of circuit breakers for individual issues was first rolled out on June 11 for stocks in the Standard & Poor's 500.
• An expansion of the above pilot program to cover 344 exchange traded products plus all stocks in the Russell 1000 index is planned for later this month, pending SEC approval.
• All markets have proposed amendments to existing rules concerning clearly erroneous trades, to make the cancellation of such trades -- when they occur in connection with an individual stock circuit breaker -- transparent and predictable for market participants.
• NYSE Arca has revised its market order routing to further enhance its interaction with the New York Stock Exchange when a Liquidity Replenishment Point has been reached and other individual-stock safeguards imposed by primary markets.