On October 9th, the SEC provided notice of NYSE Arca's filing of proposed amendments to NYSE Arca Equities Rules 7.31, 7.32, 7.37, and 7.384 in order to update its rules related to the Exchange's order types and modifiers. The Exchange proposes these rule changes in order to provide additional specificity and transparency to NYSE Arca Equities ETP Holders regarding the operation of NYSE Arca Equities order types and modifiers, to better align its rules with currently available functionality, and to organize and define order types and modifiers in a more intuitive manner. Comments should be submitted within 21 days after publication in the Federal Register, which is expected during the week of October 21. SEC Release No. 34-70637.