MEMX posts Rule 605 order execution disclosures for equity trading

MEMX posts Rule 605 order execution disclosures for equity trading
MEMX posts Rule 605 data

Monthly execution-quality disclosures remain a key compliance requirement for U.S. market centers trading national market system securities. MEMX makes its Rule 605 reports available through its customer portal and says the data covers stock-by-stock trading activity from the previous month.

Highlights

  • MEMX released monthly SEC Rule 605 order execution quality reports for national market system securities, covering the prior month’s stock-by-stock trading activity.
  • The exchange cautioned that its Rule 605 data may not be directly comparable to other market centers due to variations in market structure and calculation methods.
  • MEMX noted its reports are unaudited, may contain errors, and advised market participants not to base order routing decisions solely on these disclosures.

Execution reporting requirements and scope

As reported by MEMX, SEC Rule 605, formerly known as Rule 11Ac1-5, requires market centers that trade national market system securities to publish monthly electronic reports on execution quality. The disclosures are presented on a stock-by-stock basis and are based on the prior month’s trading activity.

MEMX says its Rule 605 reports are available for download through its portal. The notice positions the reports as part of the exchange’s regular disclosure framework for order execution information.

Comparability limits for market participants

MEMX says the information may not be directly comparable with data shown by other market centers because of differences in market structure and calculation methods. That caveat is relevant for brokers, traders and other users assessing execution quality across venues.

The exchange also says it has used reasonable efforts to prepare the reports in compliance with Rule 605, but the statistics have not been audited and may contain errors. MEMX adds that decisions on whether to route orders to the venue should not be based solely on these figures.

Investor fund-flow data highlighted a sharp risk repositioning, with U.S. equity funds seeing their biggest weekly outflow since March while bond funds extended a long streak of inflows. Our publication also noted that markets were closely watching Jackson Hole remarks from Fed Chair Kevin Warsh, as shifting expectations for the rate path and moves in Treasury yields were influencing positioning across assets.

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