On June 17, the Securities and Exchange Commission announced that the exchanges and the Financial Industry Regulatory Authority filed proposed rules to implement a series of thresholds for breaking erroneous trades. Currently, the exchanges and Electronic Communications Networks all treat clearly erroneous trades differently with respect to thresholds and timing for reporting such trades. The current proposal comes in response to the May 6 market disruption and complements the SEC’s recent approval of stock-by-stock circuit breakers. “Establishing clear and transparent standards for breaking trades helps provide certainty in advance as to which trades will be broken, and allows market participants to better manage their risks,” said SEC Chairman Mary Schapiro.

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