FINRA issued Regulatory Notice 17-22 to remind members of rule changes implemented in December 2016. The changes address disruptive trading and quoting activity.

Specifically, the rule changes (i) prohibit two specific types of disruptive quoting and trading activity by adding new Supplementary Material .03 to FINRA Rule 5210 and (ii) amend the FINRA Rule 9800 Series to allow FINRA to issue expedited permanent cease-and-desist orders against market participants who have repeatedly violated the prohibited disruptive quoting and trading activity referenced in Supplementary Material .03 to Rule 5210.

The rules became effective on December 15, 2016.

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